# Weather

> This skill should be used when users ask for weather information, current conditions, or forecasts for any location worldwide. Use for queries like "weather in Beijing", "what's the weather today", "temperature in Tokyo", "forecast for London".

- Skill: `smallnest/weather` (Agent Skill)
- Install (CLI): `npx skillmds@latest add smallnest/weather`
- Raw SKILL.md: https://api.skillmd.com/api/skills/smallnest/weather/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: smallnest (https://skillmd.com/u/smallnest)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/smallnest/weather

---


# Weather

Two free services, no API keys needed.

## wttr.in (primary)

Quick one-liner:

```bash
curl -s "wttr.in/London?format=3"
# Output: London: ⛅️ +8°C
```

Compact format:

```bash
curl -s "wttr.in/London?format=%l:+%c+%t+%h+%w"
# Output: London: ⛅️ +8°C 71% ↙5km/h
```

Full forecast:

```bash
curl -s "wttr.in/London?T"
```

Format codes: `%c` condition · `%t` temp · `%h` humidity · `%w` wind · `%l` location · `%m` moon

Tips:

- URL-encode spaces: `wttr.in/New+York`
- Airport codes: `wttr.in/JFK`
- Units: `?m` (metric) `?u` (USCS)
- Today only: `?1` · Current only: `?0`
- PNG: `curl -s "wttr.in/Berlin.png" -o /tmp/weather.png`

## Open-Meteo (fallback, JSON)

Free, no key, good for programmatic use:

```bash
curl -s "https://api.open-meteo.com/v1/forecast?latitude=51.5&longitude=-0.12&current_weather=true"
```

Find coordinates for a city, then query. Returns JSON with temp, windspeed, weathercode.

Docs: https://open-meteo.com/en/docs