weather

name	weather
description	Get current weather and short-range forecasts via free public APIs.

Weather

Two free APIs, no keys needed. Use web_fetch. Both return JSON; the tool already pretty-prints it for you.

wttr.in (primary)

Compact current-weather + 3-day forecast in JSON:

• URL: https://wttr.in/<location>?format=j1
• <location> is a city name (URL-encode spaces: New+York), airport code (JFK), or lat,lon.

Example call:

{"name": "web_fetch", "arguments": {"url": "https://wttr.in/Singapore?format=j1"}}

Useful keys in the response:

• current_condition[0]: temp_C, temp_F, humidity, windspeedKmph, weatherDesc[0].value, FeelsLikeC.
• weather[0..2]: per-day forecast with maxtempC, mintempC, astronomy (sunrise/sunset), and hourly slices.

Default to Singapore when the user does not specify a location — that is where the lecture is held.

Open-Meteo (fallback)

Use when wttr.in is slow or returns an error.

• URL: https://api.open-meteo.com/v1/forecast?latitude=<lat>&longitude=<lon>&current_weather=true
• For Singapore: latitude=1.3667&longitude=103.8.

Example call:

{"name": "web_fetch", "arguments": {"url": "https://api.open-meteo.com/v1/forecast?latitude=1.3667&longitude=103.8&current_weather=true"}}

Returns current_weather with temperature, windspeed, winddirection, weathercode. Weather-code lookup table: https://open-meteo.com/en/docs (Variable section).

Reply style

Provide the answer in one sentence with the relevant numbers and optionally an emoji. Convert to the unit the user used; default to °C and km/h. Do not paste the raw JSON.