weatherlisted

# Weather Use this for current conditions, rain and temperature checks, and short-range forecasts — for a city, region, airport code, landmark, or coordinates. You always need a location: if the user gives none and none is clear from context, ask for one. ## How to fetch it Fetch weather with the `web_fetch` tool against **wttr.in**, a free service that needs no API key. Always request the JSON format `j2`: ``` web_fetch(url: "https://wttr.in/London?format=j2") ``` Request `format=j2` on purpose. `web_fetch` sends browser-like headers, so for wttr.in's human-readable formats the service answers with decorative HTML/ANSI that is useless to parse. `j2` returns compact JSON instead — current conditions plus a 3-day forecast, without the bulky per-hour data — which `web_fetch` hands back verbatim (a few KB, well within its output cap). Parse that JSON and summarize it; do not read the weather back field by field. ### Building the URL The location goes in the URL path. Encode spaces as `+`: - City or region — `https://wttr.in/Berlin?format=j2`, `https://wttr.in/New+York?format=j2` - Airport code — `https://wttr.in/MUC?format=j2` - Coordinates — `https://wttr.in/48.85,2.35?format=j2` - Landmark or point of interest — prefix with `~`: `https://wttr.in/~Eiffel+Tower?format=j2` ## Reading the JSON Summarize `current_condition[0]`, `nearest_area[0]` (to confirm the resolved place), and the first entries of `weather[]` for the forecast. wttr.in returns both metric and imperial