Weather

Two free services, no API keys needed.

wttr.in (primary)

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Quick one-liner:

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

Compact format:

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

Full forecast:

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:

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

這個天氣查詢工具質量不錯，完全免費且無需註冊即可使用，支援快速單行查詢和詳細預報兩種模式，涵蓋溫度、溼度、風速等資訊。文件清晰易懂，使用技巧豐富。不足之處是功能相對基礎，缺少多日預報、天氣預警等進階功能，且沒有中文介面。總體而言，作為日常簡單天氣查詢足夠使用，但需要更專業的氣象服務可能不夠滿足。