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name: weather description: Show weather forecast with cloud cover, wind, and precipitation for planning outdoor activities. Auto-selects best model (ICON-D2 for Alps/Europe, global elsewhere). allowed-tools: [Bash, Read] user-invocable: true

Weather Forecast

Get hourly weather forecasts to plan outdoor activities (running, cycling, climbing, skiing, etc.).

When to Invoke

• User asks about weather for outdoor activity planning
• User wants to know when to go outside / best time for a run
• Phrases like "good weather window", "when should I go running", "cloud cover forecast"
• User mentions travel and weather (skill works globally with auto model selection)

Quick Usage

~/.claude/skills/weather/weather.sh                    # Vienna (default)
~/.claude/skills/weather/weather.sh -l Innsbruck       # Any location by name
~/.claude/skills/weather/weather.sh -l "Chamonix, FR"  # Include country for accuracy

Options

| Flag | Description | Default | |------|-------------|---------| | -l, --location NAME | Search location by name | Vienna | | --lat N | Override latitude | 48.18601 | | --lon N | Override longitude | 16.32105 | | --days N | Forecast days (max 2 for ICON-D2) | 2 | | --threshold N | Cloud % for "good" windows | 30 | | --model MODEL | Force model: auto, icon_d2, best_match | auto | | --raw | Output raw JSON | - |

What It Shows

For each daylight hour:

• Cloud cover - Visual bar + percentage
• Temperature - Actual temp in Celsius
• Wind speed - km/h
• Rain probability - Percentage

Plus:

• Current conditions - Temp, feels-like, clouds, wind, conditions
• Best windows - Consecutive hours with low clouds AND low rain probability
• Sunrise/sunset - Daylight planning

Output Example

Weather for Vienna (48.19°N, 16.32°E) - ICON-D2
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Now: -1°C (feels -5°C), 82% clouds, 11 km/h wind
Conditions: Overcast
Sunrise: 07:43  Sunset: 16:18

📅 2026-01-08:
  Time  Cloud                         Temp   Wind  Rain%
  08:00   0% ████████████████████  -8°C   7km/h   0% ✓
  09:00   0% ████████████████████  -7°C   8km/h   0% ✓
  10:00   0% ████████████████████  -5°C  10km/h   0% ✓
  11:00   0% ████████████████████  -4°C   9km/h   0% ✓
  12:00  64% ████████░░░░░░░░░░░░  -3°C   9km/h   0%

Best outdoor windows:
  ✓ 08:00-11:00  0% clouds, -8--4°C, 10km/h max wind

Model Selection

The skill auto-selects the best weather model:

| Model | Resolution | Region | Forecast | |-------|------------|--------|----------| | ICON-D2 | 2.2km | Central Europe/Alps | 48 hours | | Best Match | varies | Global | 7+ days |

For Alps/Europe locations, ICON-D2 provides superior accuracy. The skill auto-detects location and switches appropriately.

Activity Considerations

Different activities have different weather needs:

• Running/Hiking: Cloud cover + temperature
• Cycling: Wind is critical (>25km/h = challenging)
• Climbing: Needs dry conditions, check precipitation history
• Skiing: Check specialized sources for snow/avalanche
• Open water: Consider water temp (not in this API)

This skill focuses on general outdoor windows. For specialized forecasts:

• Alpine: bergfex.at
• Avalanche: avalanche.report
• Marine: windy.com marine layer

Data Source

• API: Open-Meteo (free, no key required)
• Units: Metric (Celsius, km/h, mm)
• Update frequency: Every 3 hours (ICON-D2)
• Timezone: Auto-detected based on location

Dependencies

• curl - HTTP requests
• jq - JSON parsing (brew install jq)