Halcyon Weather

Halcyon is a calm, honest weather app for iPhone, Apple Watch, and the Home Screen. It turns the forecast into one clear sentence — what's likely, what to plan around, what's safe to skip — instead of throwing dashboards at you.

— TODAY BRIEF
A short, plain-language summary of the next twelve hours: rain risk, UV, wind, and the comfort of being outside. Built from Apple Weather data, written like a friend who happens to read the chart.

— HEADS UP
A glanceable card surface with what actually matters: rain soon, strong wind, freeze risk, severe weather. Confidence is labelled when conditions are changing — Halcyon won't fake certainty.

— BEST WINDOWS
Halcyon looks ahead at the next twelve hours and recommends the best window to walk, commute, or plan an evening — no more guessing whether the rain hits before or after you leave.

— ON THE WATCH AND HOME SCREEN
A focused Apple Watch app and a Home Screen widget keep current conditions one glance away.

— FREE OR AD-FREE
Halcyon is free with two unobtrusive native ads on the forecast page. If you'd rather support the app without ads, Halcyon Ad-Free is $6.99 per year. Severe weather alerts stay free for everyone — Halcyon never paywalls danger.

Forecast data is provided by Apple Weather (WeatherKit). Halcyon is built by an independent developer and is not a substitute for official severe-weather alerts. Always cross-reference with your local emergency broadcast.