CalFrog
The forecast, in the calendar you already check.
Pick a place and subscribe once. Sixteen days arrive as all-day events, morning to night.
One all-day event per day, notes included
Loading the live feed…
CalFrog is a calendar subscription, not an app. You add one URL to Apple Calendar, Google Calendar or Outlook, and the next sixteen days of weather arrive as all-day events — the day's conditions and its high and low in the title, a morning-to-night breakdown in the notes. It refreshes on its own, so there's nothing to open and nothing to keep updated.
Loading the forecast feed.
Questions & answers
The how-to answers all need the same thing: the feed URL from the Copy feed URL button. Subscribing is read-only — your calendar only ever pulls the feed, nothing is pushed back.
How to add in Apple Calendar on Mac
File → New Calendar Subscription, paste the URL, then Subscribe. In the sheet that follows, set Auto-refresh to Every hour — the default is Every week, which will leave you looking at stale weather.
Untick Remove: Alerts if you want to keep it tidy; the feed sends none anyway.
How to add on iPhone and iPad
Tapping Add to calendar on this page usually opens the subscribe sheet directly. If it doesn't: Settings → Apps → Calendar → Calendar Accounts → Add Account → Other → Add Subscribed Calendar, then paste the URL.
A calendar subscribed on the Mac with iCloud enabled syncs to your devices on its own, so you only need to do this once.
How to add in Google Calendar
On the web: Other calendars → + → From URL, paste, then Add calendar. It has to be done on desktop web — the mobile apps can't add a URL subscription, though they display one once it exists.
Worth knowing: Google refreshes external feeds on its own schedule, often every 8–24 hours, and ignores the feed's refresh hint. The forecast will lag behind the other apps. That's Google's behaviour, not something CalFrog can change.
How to add in Outlook
Outlook on the web and the new Outlook for Mac/Windows: Add calendar → Subscribe from web, paste the URL, name it, Import.
How far ahead does it forecast?
Sixteen days — that's the horizon of the forecast data, not a limit we chose. Each day arrives as one all-day event, so it never blocks time or marks you busy.
How often does it update?
The feed asks your calendar to re-check every two hours. How closely a client obeys that is up to the client — Apple honours it, Google refreshes on its own slower schedule (see above).
How do I remove it?
Delete the subscribed calendar in your calendar app and it's gone — there's no account here, so there's nothing to cancel and nothing of yours left behind.
What can CalFrog see?
To be straight about it: CalFrog is a hosted service, not an on-device one. Your chosen coordinates travel in the feed URL, and the server logs requests as any web server does.
There's no account, and nothing personal is asked for or stored. Coordinates are rounded to two decimals — roughly a kilometre — so the feed knows your town, not your address.
From the same studio
ClipBear — a clipboard manager for developers
Decode a JWT, format JSON, convert colors, OCR a screenshot — right from your clipboard, all on-device.
Forecast data by Open-Meteo (CC BY 4.0). Map tiles by CARTO, map data © OpenStreetMap contributors. The idea came from weather-in-calendar.com — CalFrog exists because that one is worth having around.