weather

name	weather
description	Checks the current weather for the user's location using live online data. Asks for location on first use and saves it for future runs. Use when the user wants a quick weather check or forecast.
argument-hint	[city name]
disable-model-invocation	true
context	fork
allowed-tools	["AskUserQuestion","Bash","WebFetch","WebSearch","Read","Write","Edit"]

Weather

Check the current weather for your location using live data from Open-Meteo (free, no API key needed).

Preferences

Read ~/.claude/skills/weather/preferences.md using the Read tool. If not found, no preferences are set.

Command routing

Check $ARGUMENTS:

• help → display help then stop
• config → interactive setup then stop
• reset → delete ~/.claude/skills/weather/preferences.md, confirm, stop
• anything else (including empty) → run the skill

Help

Weather — Check current weather for your location

Usage:
  /weather                     Show weather for saved location
  /weather Berlin              Show weather for Berlin
  /weather config              Set your default location
  /weather reset               Clear saved location
  /weather help                This help

Examples:
  /weather                     Uses your saved city
  /weather "New York"          One-off check for New York
  /weather Tokyo               One-off check for Tokyo

Current preferences:
  (shown above under Preferences)

Config

Use AskUserQuestion:

Q1 — "What city are you in?" (text input via Other)

• Options: suggest common cities as quick picks, plus Other for custom input

Q2 — "Temperature unit?"

• Celsius (default)
• Fahrenheit

Save to ~/.claude/skills/weather/preferences.md.

Reset

Delete ~/.claude/skills/weather/preferences.md and confirm: "Preferences cleared. Using defaults."

First-time detection

If no preferences file exists and no city argument was provided:

1. Use AskUserQuestion to ask: "Where are you located? (city name)"
2. After getting weather, offer to save the location

Steps

1. Determine location

• If $ARGUMENTS contains a city name (not help/config/reset) → use that city
• Else if preferences has a saved city → use that
• Else → ask via AskUserQuestion: "What city should I check the weather for?"

2. Geocode the city

Use WebFetch to call the Open-Meteo geocoding API:

https://geocoding-api.open-meteo.com/v1/search?name={city}&count=1&language=en&format=json

Extract latitude, longitude, and name (resolved city name) from the first result.

If no results found, tell the user and ask for a different city.

3. Fetch current weather

Use WebFetch to call the Open-Meteo forecast API:

https://api.open-meteo.com/v1/forecast?latitude={lat}&longitude={lon}&current=temperature_2m,relative_humidity_2m,apparent_temperature,weather_code,wind_speed_10m,wind_direction_10m&temperature_unit={celsius|fahrenheit}&wind_speed_unit=kmh&timezone=auto

4. Display weather

Show a fun, concise weather card:

{weather emoji} Weather in {City}

  Temperature:  {temp}°{C/F} (feels like {apparent}°)
  Conditions:   {description from weather code}
  Humidity:     {humidity}%
  Wind:         {speed} km/h {direction}

  {fun one-liner comment about the weather}

Weather code mapping (WMO codes):

• 0: Clear sky
• 1-3: Partly cloudy
• 45, 48: Foggy
• 51-55: Drizzle
• 61-65: Rain
• 66-67: Freezing rain
• 71-77: Snow
• 80-82: Rain showers
• 85-86: Snow showers
• 95-99: Thunderstorm

Emoji mapping:

• Clear → sun
• Cloudy → cloud
• Rain/Drizzle → rain
• Snow → snowflake
• Thunderstorm → lightning
• Fog → fog

5. Offer to save (first-time only)

If no preferences existed and no city argument was given, ask:

Save {City} as your default location?

If yes, write preferences file.

Principles

• Always live data — never cache or guess weather; always fetch fresh from the API.
• Fun and concise — keep it light. One screen, one glance. Add a witty comment about the conditions.
• Fail gracefully — if the API is down or city not found, say so clearly and suggest alternatives.
• Respect saved preferences — once configured, just show the weather with zero friction.