A guide for getting current weather and forecasts from free services that do not require an API key. It includes simple command-line requests and a JSON option for programs.

Use it to fetch current weather or forecasts for cities and airports, either as readable text or structured JSON for software.

It gives an agent a repeatable way to retrieve weather information without setting up paid access or credentials. The examples cover locations, units, current conditions, and forecasts.

weather — Skill for Claude Code and Codex by kachofugetsu09

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 kachofugetsu09/akashic-agent --skill weather

Clone the repo

git clone --depth 1 https://github.com/kachofugetsu09/akashic-agent

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/kachofugetsu09/akashic-agent/weather/github.svg)](https://agentmods.dev/skills/kachofugetsu09/akashic-agent/weather)

Your own site

<a href="https://agentmods.dev/skills/kachofugetsu09/akashic-agent/weather"><img src="https://agentmods.dev/badge/skills/kachofugetsu09/akashic-agent/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/kachofugetsu09/akashic-agent/weather"><img src="https://agentmods.dev/badge/skills/kachofugetsu09/akashic-agent/weather.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 388 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin 88% copy Near-identical to another mod 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	$0.00013	$0.00388
Opus 5.5	$0.00005	$0.00155
Sonnet 5.5	$0.00003	$0.00078
Haiku 4.5	$0.00001	$0.00039

Measured 2mo ago against content hash 30977b4626c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

weather scanned grade A with 1 finding 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 2mo 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.

metadata: {"akashic":{"emoji":"🌤️","requires":{"bins":["curl"]}}}

Origin

This is a copy

88% identical to weather — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/weather/SKILL.md · 50 lines

What it actually says

Weather

Two free services, no API keys needed.

wttr.in (primary)

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

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.

2mo ago First seen · 50 lines · 13 tokens per session scan A 30977b4626c8

Subscribe to this mod's changes

weather is a skill published in the GitHub repository kachofugetsu09/akashic-agent (518 stars, last pushed today), licensed MIT. It adds 13 tokens to every session and 388 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). It is 88% identical to weather, differing in 3 lines, and is treated as a copy.

weather next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
weatherkachofugetsu09/akashic-agent	Skill	518	today	MIT	A	13	Claude Code, Codex
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	today	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	today	MIT	A	103	Claude Code

weather