Weather Skill

SkillMonitoring & ops

Get current weather and forecasts via wttr.in or Open-Meteo. Use when: user asks about weather, temperature, or forecasts for any location. NOT for: historical weather data, severe weather alerts, or detailed meteorological analysis. No API key needed.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Weather Skill skill

What this skill tells your AI

The instructions your AI receives, as published by understudy-ai/understudy in skills/weather/SKILL.md and read by ahel’s review.

Get current weather conditions and forecasts.

When to Use

USE this skill when:

  • "What's the weather?"
  • "Will it rain today/tomorrow?"
  • "Temperature in [city]"
  • "Weather forecast for the week"
  • Travel planning weather checks

When NOT to Use

DON'T use this skill when:

  • Historical weather data → use weather archives/APIs
  • Climate analysis or trends → use specialized data sources
  • Hyper-local microclimate data → use local sensors
  • Severe weather alerts → check official NWS sources
  • Aviation/marine weather → use specialized services (METAR, etc.)

Location

Always include a city, region, or airport code in weather queries.

Commands

Current Weather

# One-line summary
curl "wttr.in/London?format=3"

# Detailed current conditions
curl "wttr.in/London?0"

# Specific city
curl "wttr.in/New+York?format=3"

Forecasts

# 3-day forecast
curl "wttr.in/London"

# Week forecast
curl "wttr.in/London?format=v2"

# Specific day (0=today, 1=tomorrow, 2=day after)
curl "wttr.in/London?1"

Format Options

# One-liner
curl "wttr.in/London?format=%l:+%c+%t+%w"

# JSON output
curl "wttr.in/London?format=j1"

# PNG image
curl "wttr.in/London.png"

Format Codes

  • %c — Weather condition emoji
  • %t — Temperature
  • %f — "Feels like"
  • %w — Wind
  • %h — Humidity
  • %p — Precipitation
  • %l — Location

Quick Responses

"What's the weather?"

curl -s "wttr.in/London?format=%l:+%c+%t+(feels+like+%f),+%w+wind,+%h+humidity"

"Will it rain?"

curl -s "wttr.in/London?format=%l:+%c+%p"

"Weekend forecast"

curl "wttr.in/London?format=v2"

Notes

  • No API key needed (uses wttr.in)
  • Rate limited; don't spam requests
  • Works for most global cities
  • Supports airport codes: curl wttr.in/ORD

Signals

GitHub stars
456
Forks
34
Last commit
Jun 2026

ahel recommends instead

Advanced
Catalog kind
skill
Gateway key
weather-understudy-ai
Source
github.com/understudy-ai/understudy