A weather lookup guide that uses wttr.in, a free weather service that needs no API key.

Use it to get temperatures, conditions, humidity, wind, and forecasts for a specified city or airport.

It provides simple commands for current conditions and forecasts without setting up a weather account.

Weather — Skill for Claude Code and Codex by turmyshevd

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add turmyshevd/openclawgotchi --skill weather

Clone the repo

git clone --depth 1 https://github.com/turmyshevd/openclawgotchi

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/turmyshevd/openclawgotchi/weather/github.svg)](https://agentmods.dev/skills/turmyshevd/openclawgotchi/weather)

Your own site

<a href="https://agentmods.dev/skills/turmyshevd/openclawgotchi/weather"><img src="https://agentmods.dev/badge/skills/turmyshevd/openclawgotchi/weather/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/turmyshevd/openclawgotchi/weather"><img src="https://agentmods.dev/badge/skills/turmyshevd/openclawgotchi/weather.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 713 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 2 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00017	$0.00713
Opus 5	$0.00009	$0.00357
Sonnet 5	$0.00003	$0.00143
Haiku 4.5	$0.00002	$0.00071

Measured 9d ago against content hash 5c114383ebd1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

Weather scanned grade A with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"requires": { "bins": ["curl"] },

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

result = subprocess.run(

gotchi-skills/weather/SKILL.md · 105 lines

What it actually says

Weather Skill

Get weather info using wttr.in — free, no API key needed, works perfectly on Pi Zero!

Quick Commands

One-liner (for E-Ink display)

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

Compact format (temp + humidity + wind)

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

Current conditions only

curl -s "wttr.in/Berlin?0T"

Full 3-day forecast

curl -s "wttr.in/Tokyo?T"

Format Codes

Code	Meaning
`%c`	Weather condition (emoji)
`%t`	Temperature
`%h`	Humidity
`%w`	Wind
`%l`	Location
`%m`	Moon phase
`%p`	Precipitation

Tips

URL-encode spaces: wttr.in/New+York or wttr.in/New%20York
Airport codes work: wttr.in/JFK, wttr.in/SVO
Force metric: ?m (Celsius, km/h)
Force imperial: ?u (Fahrenheit, mph)
Today only: ?1
Current only: ?0
No colors: ?T (better for parsing)

Integration with E-Ink

Perfect for heartbeat or status display:

import subprocess

def get_weather(city="Moscow"):
    result = subprocess.run(
        f'curl -s "wttr.in/{city}?format=%c+%t"',
        shell=True, capture_output=True, text=True
    )
    return result.stdout.strip()

# Use in heartbeat:
weather = get_weather()
show_face("happy", f"SAY:{weather}")

Example Responses

# Quick
curl -s "wttr.in/Moscow?format=3"
→ Moscow: ☀️ -5°C

# Detailed  
curl -s "wttr.in/Moscow?format=%l:+%c+%t+(%h+humidity,+%w+wind)"
→ Moscow: ☀️ -5°C (45% humidity, ↑10km/h wind)

Fallback: Open-Meteo API

If wttr.in is down, use Open-Meteo (JSON, no key):

# Get coordinates first (Moscow: 55.75, 37.62)
curl -s "https://api.open-meteo.com/v1/forecast?latitude=55.75&longitude=37.62&current_weather=true"

Returns JSON with temperature, windspeed, weathercode.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago First seen · 105 lines · 17 tokens per session scan A 5c114383ebd1

Subscribe to this mod's changes

Weather is a skill published in the GitHub repository turmyshevd/openclawgotchi (48 stars, last pushed 2mo ago), licensed MIT. It adds 17 tokens to every session and 713 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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Weather