wttr.in README

The project's README from github.com/chubin/wttr.in. As one markdown file: README.md.

wttr.in — the right way to check curl the weather!

wttr.in is a console-oriented weather forecast service that supports various information representation methods like terminal-oriented ANSI-sequences for console HTTP clients (curl, httpie, or wget), HTML for web browsers, or PNG for graphical viewers.

Originally started as a small project, a wrapper for wego, intended to demonstrate the power of the console-oriented services, wttr.in became a popular weather reporting service, handling tens of millions¹ of queries daily.

You can see it running here: wttr.in.

Documentation | Usage | One-line output | Data-rich output format | Map view | Output formats | Moon phases | Internationalization | Installation

Usage

You can access the service from a shell or from a Web browser like this:

$ curl wttr.in
Weather for City: Paris, France

     \   /     Clear
      .-.      10 – 11 °C
   ― (   ) ―   ↑ 11 km/h
      `-’      10 km
     /   \     0.0 mm

Here is an example weather report:

Weather Report

Or in PowerShell:

Invoke-RestMethod https://wttr.in

Want to get the weather information for a specific location? You can add the desired location to the URL in your request like this:

$ curl wttr.in/London
$ curl wttr.in/Moscow
$ curl wttr.in/Salt+Lake+City

If you omit the location name, you will get the report for your current location based on your IP address.

Use 3-letter airport codes in order to get the weather information at a certain airport:

$ curl wttr.in/muc      # Weather for IATA: muc, Munich International Airport, Germany
$ curl wttr.in/ham      # Weather for IATA: ham, Hamburg Airport, Germany

Let's say you'd like to get the weather for a geographical location other than a town or city - maybe an attraction in a city, a mountain name, or some special location:

$ curl wttr.in/Vostok+Station
$ curl wttr.in/Eiffel+Tower
$ curl wttr.in/Kilimanjaro

For these examples, you'll see a line below the weather forecast output that shows the geolocation results of looking up the location:

Location: Vostok Station, станция Восток, AAT, Antarctica [-78.4642714,106.8364678]
Location: Tour Eiffel, Paris, Île-de-France, 75007, France [48.8582602,2.29449905432]
Location: Kilimanjaro, Northern, Tanzania [-3.4762789,37.3872648]

You can also use IP-addresses (direct) or domain names (prefixed with @) to specify a location:

$ curl wttr.in/@github.com
$ curl wttr.in/@msu.ru

To get detailed information online, you can access the /:help page:

$ curl wttr.in/:help

Weather Units

By default the USCS units are used for the queries from the USA and the metric system for the rest of the world. You can override this behavior by adding ?u, ?m or ?M to a URL like this:

$ curl wttr.in/Amsterdam?u  # USCS (used by default in US)
$ curl wttr.in/Amsterdam?m  # metric (SI) (used by default everywhere except US)
$ curl wttr.in/Amsterdam?M  # metric (SI), but show wind speed in m/s

If you have several options to pass, write them without delimiters in between for the one-letter options, and use & as a delimiter for the long options with values:

$ curl 'wttr.in/Amsterdam?m2&lang=nl'

It would be a rough equivalent of -m2 --lang nl for the GNU CLI syntax.

Supported output formats and views

wttr.in currently supports five output formats:

The ANSI and HTML formats are selected based on the User-Agent string.

To force plain text, which disables colors:

$ curl wttr.in/?T

To restrict output to glyphs available in standard console fonts (e.g. Consolas and Lucida Console):

$ curl wttr.in/?d

The PNG format can be forced by adding .png to the end of the query:

$ wget wttr.in/Paris.png

You can use all of the options with the PNG-format like in an URL, but you have to separate them with _ instead of ? and &:

$ wget wttr.in/Paris_0tqp_lang=fr.png

Useful options for the PNG format:

Transparency is a useful feature when weather PNGs are used to add weather data to pictures:

$ convert source.jpg <( curl wttr.in/Oymyakon_tqp0.png ) -geometry +50+50 -composite target.jpg

In this example:

Picture with weather data

You can embed a special wttr.in widget, that displays the weather condition for the current or a selected location, into a HTML page using the wttr-switcher. That is how it looks like: wttr-switcher-example or on a real world web site: https://feuerwehr-eisolzried.de/.

Embedded wttr.in example at feuerwehr-eisolzried.de

One-line output

One-line output format is convenient to be used to show weather info in status bar of different programs, such as tmux, weechat, etc.

For one-line output format, specify additional URL parameter format:

$ curl wttr.in/Nuremberg?format=3
Nuremberg: 🌦 +11⁰C

Available preconfigured formats: 1, 2, 3, 4 and the custom format using the percent notation (see below).

You can specify multiple locations separated with : (for repeating queries):

$ curl wttr.in/Nuremberg:Hamburg:Berlin?format=3
Nuremberg: 🌦 +11⁰C

Or to process all this queries at once:

$ curl -s 'wttr.in/{Nuremberg,Hamburg,Berlin}?format=3'
Nuremberg: 🌦 +11⁰C
Hamburg: 🌦 +8⁰C
Berlin: 🌦 +8⁰C

To specify your own custom output format, use the special %-notation:

    c    Weather condition,
    C    Weather condition textual name,
    x    Weather condition, plain-text symbol,
    h    Humidity,
    t    Temperature (Actual),
    f    Temperature (Feels Like),
    H    Temperature (High),
    L    Temperature (Low),
    w    Wind,
    l    Location,
    m    Moon phase 🌑🌒🌓🌔🌕🌖🌗🌘,
    M    Moon day,
    p    Precipitation (mm/3 hours),
    P    Pressure (hPa),
    e    Dew point,
    u    UV index (1-12),

    D    Dawn*,
    S    Sunrise*,
    z    Zenith*,
    s    Sunset*,
    d    Dusk*,
    T    Current time*,
    Z    Local timezone.

(*times are shown in the local timezone)

So, these two calls are the same:

    $ curl wttr.in/London?format=3
    London: ⛅️ +7⁰C
    $ curl wttr.in/London?format="%l:+%c+%t\n"
    London: ⛅️ +7⁰C

Domains & Reliability

You can safely use wttr.is anywhere you currently use wttr.in.
Both domains are served from the same backend and kept in sync.

We recommend using wttr.is in scripts, status bars, monitoring tools, and CI/CD pipelines for improved reliability.

Integrations

Thanks to the ease of integrating wttr.in into any program, there are a plethora of popular integrations across various libraries, programming languages, and systems.

wttr.in is compatible with:

and more, these integrations enhance workflow efficiency by embedding weather information directly into user interfaces.

See the full list of integrations here: wttr.in integrations and some of them below.

tmux

When using in tmux.conf, you have to escape % with %, i.e. write there %% instead of %.

The output does not contain new line by default, when the %-notation is used, but it does contain it when preconfigured format (1,2,3 etc.) are used. To have the new line in the output when the %-notation is used, use '\n' and single quotes when doing a query from the shell.

In programs, that are querying the service automatically (such as tmux), it is better to use some reasonable update interval. In tmux, you can configure it with status-interval.

If several, : separated locations, are specified in the query, specify update period as an additional query parameter period=:

set -g status-interval 60
WEATHER='#(curl -s wttr.in/London:Stockholm:Moscow\?format\="%%l:+%%c%%20%%t%%60%%w&period=60")'
set -g status-right "$WEATHER ..."

wttr.in in tmux status bar

WeeChat

To embed in to an IRC (WeeChat) client's existing status bar:

/alias add wttr /exec -pipe "/mute /set plugins.var.wttr" url:wttr.in/Montreal?format=%l:+%c+%f+%h+%p+%P+%m+%w+%S+%s;/wait 3 /item refresh wttr
/trigger add wttr timer 60000;0;0 "" "" "/wttr"
/item add wttr "" "${plugins.var.wttr}"
/eval /set weechat.bar.status.items ${weechat.bar.status.items},spacer,wttr
/eval /set weechat.startup.command_after_plugins ${weechat.startup.command_after_plugins};/wttr
/wttr

wttr.in in WeeChat status bar

conky

Conky usage example:

${texeci 1800 curl wttr.in/kyiv_0pq_lang=uk.png
  | convert - -transparent black $HOME/.config/conky/out.png}
${image $HOME/.config/conky/out.png -p 0,0}

wttr.in in conky

IRC

IRC integration example:

Emojis support

To see emojis in terminal, you need:

  1. Terminal support for emojis (was added to Cairo 1.15.8);
  2. Font with emojis support.

For the emoji font, we recommend Noto Color Emoji, and a good alternative option would be the Emoji One font; both of them support all necessary emoji glyphs.

Font configuration:

$ cat ~/.config/fontconfig/fonts.conf
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
  <alias>
    <family>serif</family>
    <prefer>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>sans-serif</family>
    <prefer>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>monospace</family>
    <prefer>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
</fontconfig>

(to apply the configuration, run fc-cache -f -v).

In some cases, tmux and the terminal understanding of some emoji characters may differ, which may cause strange effects similar to that described in #579.

Squeak

To embed into the world main docking bar:

wttr := (UpdatingStringMorph on: [(WebClient httpGet: 'https://wttr.in/?format=%20%20%l:%20%C+%t') content] selector: #value)
	stepTime: 60000;
	useStringFormat;
	yourself.
dockingBar := World mainDockingBars first.
dockingBar addMorph: wttr after: (dockingBar findA: ClockMorph).

wttr.in integration in the Squeak world main docking bar

Data-rich output format (v2)

In the experimental data-rich output format, that is available under the view code v2, a lot of additional weather and astronomical information is available:

  $ curl v2.wttr.in/München

or

  $ curl wttr.in/München?format=v2

or, if you prefer Nerd Fonts instead of Emoji, v2d (day) or v2n (night):

  $ curl v2d.wttr.in/München

data-rich output format

(The mode is experimental, and it has several limitations currently:

Currently, you need some tweaks for some terminals, to get the best possible visualization.

URXVT

Depending on your configuration you might be taking all steps, or only a few. URXVT currently doesn't support emoji related fonts, but we can get almost the same effect using Font-Symbola. So add to your .Xresources file the following line:

    xft:symbola:size=10:minspace=False

You can add it after your preferred font and it will only show up when required. Then, if you see or feel like you're having spacing issues, add this: URxvt.letterSpace: 0 For some reason URXVT sometimes stops deciding right the word spacing and we need to force it this way.

The result, should look like:

URXVT Emoji line

Map view (v3)

In the experimental map view, that is available under the view code v3, weather information about a geographical region is available:

    $ curl v3.wttr.in/Bayern.sxl

Example of v3 map view

or directly in browser:

The map view currently supports three formats:

Terminal with inline images protocols support:

⟶ Detailed article: Images in terminal

Terminal Environment Images support Protocol
uxterm X11 yes Sixel
mlterm X11 yes Sixel
kitty X11 yes Kitty
wezterm X11 yes IIP
Darktile X11 yes Sixel
Jexer X11 yes Sixel
GNOME Terminal X11 in-progress Sixel
alacritty X11 in-progress Sixel
foot Wayland yes Sixel
DomTerm Web yes Sixel
Yaft FB yes Sixel
iTerm2 Mac OS X yes IIP
mintty Windows yes Sixel
Windows Terminal Windows in-progress Sixel
RLogin Windows yes Sixel

Different output formats

JSON output

The JSON format is a feature providing access to wttr.in data through an easy-to-parse format, without requiring the user to create a complex script to reinterpret wttr.in's graphical output.

To fetch information in JSON format, use the following syntax:

$ curl wttr.in/Detroit?format=j1

This will fetch information on the Detroit region in JSON format. The j1 format code is used to allow for the use of other layouts for the JSON output.

The result will look something like the following:

{
	"current_condition": [
		{
		    "FeelsLikeC": "25",
		    "FeelsLikeF": "76",
		    "cloudcover": "100",
		    "humidity": "76",
		    "observation_time": "04:08 PM",
		    "precipMM": "0.2",
		    "pressure": "1019",
		    "temp_C": "22",
		    "temp_F": "72",
		    "uvIndex": 5,
		    "visibility": "16",
		    "weatherCode": "122",
		    "weatherDesc": [
			{
			    "value": "Overcast"
			}
		    ],
		    "weatherIconUrl": [
			{
			    "value": ""
			}
		    ],
		    "winddir16Point": "NNE",
		    "winddirDegree": "20",
		    "windspeedKmph": "7",
		    "windspeedMiles": "4"
		}
	],
...

Most of these values are self-explanatory, aside from weatherCode. The weatherCode is an enumeration which you can find at either the WorldWeatherOnline website or in the wttr.in source code.

A smaller version format=j2 without hourly data is also available. Can work well for microcontrollers with limited memory.

Prometheus Metrics Output

The Prometheus Metrics format is a feature providing access to wttr.in data through an easy-to-parse format for monitoring systems, without requiring the user to create a complex script to reinterpret wttr.in's graphical output.

To fetch information in Prometheus format, use the following syntax:

$ curl wttr.in/Detroit?format=p1

This will fetch information on the Detroit region in Prometheus Metrics format. The p1 format code is used to allow for the use of other layouts for the Prometheus Metrics output.

A possible configuration for Prometheus could look like this:

    - job_name: 'wttr_in_detroit'
        static_configs:
            - targets: ['wttr.in']
        metrics_path: '/Detroit'
        params:
            format: ['p1']

The result will look something like the following:

# HELP temperature_feels_like_celsius Feels Like Temperature in Celsius
temperature_feels_like_celsius{forecast="current"} 7
# HELP temperature_feels_like_fahrenheit Feels Like Temperature in Fahrenheit
temperature_feels_like_fahrenheit{forecast="current"} 45
[truncated]

...

Moon phases

wttr.in can also be used to check the phase of the Moon. This example shows how to see the current Moon phase in the full-output mode:

$ curl wttr.in/Moon

Get the moon phase for a particular date by adding @YYYY-MM-DD:

$ curl wttr.in/Moon@2016-12-25

The moon phase information uses pyphoon as its backend.

To get the moon phase information in the one-line mode, use %m:

$ curl wttr.in/London?format=%m
🌖

Keep in mind that the Unicode representation of moon phases suffers 2 caveats:

See #247, #364 for the corresponding tracking issues, and [pyphoon#1](https://github.com/chubin/p

wttr.in (chubin/wttr.in)

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30.7K ·GitHub
What is this?wttr.in is a console-oriented weather forecast service: you check the weather with curl from a terminal or open it in a browser, and it draws the forecast as ASCII art for terminals, HTML for browsers, or PNG images for graphical viewers.
Is this a website, or a command-line tool I have to install?It is a hosted service, not something you install: any HTTP client — curl, httpie, wget — or a plain browser gets an answer. The Go source is open (Apache-2.0), so you can also self-host your own instance from the repo's Docker image.
How do I check the weather with it?Run 'curl wttr.in' — with no location you get the report for your current location based on your IP address; add a city to the URL for anywhere else, like 'curl wttr.in/London'. The full option reference lives at 'curl wttr.in/:help'.
Do I need an API key or any registration to use it?No: queries are plain unauthenticated HTTP requests, so all you need is an HTTP client — curl, httpie or wget — or just a browser.
Will the ANSI art and emojis render correctly in my terminal?Emojis need a terminal with emoji support plus an emoji font (Noto Color Emoji is recommended); on a basic terminal force plain text with ?T or stick to glyphs from standard console fonts with ?d. The data-rich v2 view is experimental — terminal-only and English-only.
Does it work from Windows too, or is it a Unix-only thing?It works from any OS: the README shows usage from Unix shells and from PowerShell, and the terminal image views are supported by Windows clients such as mintty and Windows Terminal (Sixel).
What locations can I query besides city names?Airport codes ('curl wttr.in/muc' for Munich Airport), landmarks and geographic names like Eiffel Tower or Kilimanjaro, IP addresses directly, and even domain names prefixed with @ — 'wttr.in/@github.com' reports the weather at that server's location.
Can I use it in scripts and status bars?Yes. There is a one-line format made for tmux or WeeChat status bars ('?format=1'..'4' or a custom %-notation), JSON via '?format=j1' (or j2 without hourly data, suited to microcontrollers), and Prometheus metrics via '?format=p1' for monitoring systems.
Is there anything beyond the current weather?Moon phases — 'curl wttr.in/Moon' shows the current phase in full-output mode — and an experimental v3 map view with weather for a whole region, served as PNG, Sixel or iTerm2 inline images.
What happens if wttr.in is down?There is a fully equivalent fallback domain, wttr.is, served from the same backend and kept in sync; the README recommends it for scripts, status bars, monitoring tools and CI pipelines.
What are similar projects?3d-asset-server, kubo, gatus, cli, posting, echo, ntfy, lago
Creator
chubin
Size
14.4 MB
Stars
30.7K
Updated
CommitSep 07
Age
10y
Commits · 90 Days