Weather — OpenClaw Skill
Get current weather conditions and forecasts for any location. No API key needed.
What This Skill Does
The Weather skill lets your OpenClaw agent retrieve current weather conditions and forecasts for virtually any location worldwide. It uses wttr.in, a free weather service that requires no API key, no account creation, and no configuration. The agent simply needs curl (which is installed on every system) to fetch weather data.
Your agent can answer questions like "What's the weather in Tokyo?", "Will it rain in London tomorrow?", or "What's the weekend forecast for Denver?" The skill supports one-line summaries, detailed current conditions, multi-day forecasts, and even JSON output for structured data processing. It recognizes city names, airport codes (ORD, LAX, LHR), and geographic regions.
The weather data includes temperature, "feels like" temperature, wind speed, humidity, precipitation, and weather condition indicators. While it covers the needs of daily weather checks and travel planning, it is not designed for severe weather alerts (use official NWS sources), aviation weather (use METAR), or historical weather data.
Example Prompts
What's the weather like in Houston right now?
Will it rain in San Francisco tomorrow? I'm deciding whether to pack an umbrella for my trip.
Give me the 3-day forecast for Tokyo -- I'm flying in on Thursday
Compare the current weather in New York, London, and Sydney
What's the temperature at Chicago O'Hare airport right now?
Check the weekend weather for Austin, TX and let me know if it's good for an outdoor barbecue
Get the weather in Berlin in JSON format so I can use the data in a script
Requirements
Binary dependency: curl (pre-installed on virtually all systems)
- No API key needed: The skill uses wttr.in, which is free and keyless
- Network access: The agent needs outbound HTTP access to wttr.in
- No rate limit worries: Normal usage is well within wttr.in's rate limits
Setup on KiwiClaw
This skill is pre-installed and configured on all KiwiClaw plans. It works immediately with zero setup -- curl is available on every tenant machine and no API keys are required. Just ask your agent about the weather.
Setup Self-Hosted
- Verify
curlis installed:curl --version(it almost certainly is) - That's it. No API keys, no configuration files, no environment variables.
- The skill is automatically available once OpenClaw detects
curlon the PATH
Related Skills
- Slack -- post daily weather updates to a team channel
- Discord -- let community members ask for weather in Discord
- Notion -- log weather data in a Notion database for travel journals
- Obsidian -- include weather in your daily notes template
FAQ
Does the Weather skill require an API key?
No. The Weather skill uses wttr.in, a free weather service that requires no API key, no account, and no configuration. It works out of the box with just curl.
What locations does the Weather skill support?
The skill supports most global cities by name (e.g., London, New York, Tokyo), airport codes (e.g., ORD, LAX, LHR), and geographic regions. It covers virtually any inhabited location worldwide.
Can the Weather skill provide multi-day forecasts?
Yes. The skill supports current conditions, today/tomorrow/day-after forecasts, 3-day detailed forecasts, and weekly forecast overviews. It can also output data in JSON format for structured processing.
Is the Weather skill accurate for travel planning?
The skill is suitable for general travel planning and daily weather checks. It provides temperature, feels-like temperature, wind speed, humidity, and precipitation data. For severe weather alerts or aviation weather, official sources like NWS or METAR services are recommended.