Abokado Labs · Weather Meter

How sure is the forecast, really?

Weather Meter is a small macOS menu bar app. It blends up to five weather services into one best-consensus forecast, and shows a confidence score, so you know how much the sources actually agree before you decide on the umbrella.

Free & open source iPhone and Apple Watch coming soon.

Weather Meter running on macOS — the menu bar showing a weather icon and temperature, and the popover dropped down beneath it showing current conditions, a Live · 5 sources · 81% sure confidence line, a 12-hour forecast, and a ten-day outlook.
How it works

One number in the menu bar. The whole sky, one click down.

Weather Meter sits in your menu bar showing the temperature and a condition icon. Click it and a popover drops down with the full forecast — current conditions, the next twelve hours, a ten-day outlook, and a line telling you how many sources agreed and how confident the blend is.

Best-consensus forecast
Five forecasts, blended into one. Weather Meter reads from Apple WeatherKit, OpenWeather, Open-Meteo, MET Norway, and Tomorrow.io, then blends temperature, wind, precipitation risk, and alerts into a single best estimate. Instead of trusting one app's guess, you see where the services agree.
A confidence score
Know how sure the forecast is. Every reading carries a line like Live · 5 sources · 81% sure. When the services agree, confidence is high. When they diverge — the cases where a single weather app would just pick one and sound certain — Weather Meter tells you it's a closer call.
Cards or a trend graph
Read it however you think. The popover shows the next twelve hours as cards or as a trend graph you can switch between temperature, feels-like, wind, rain chance, and humidity. Below that, a ten-day outlook with highs, lows, and rain. Show one view or both.
Every place you care about
Save the locations you check. Pin your current location as the default, search for any city or place, and keep a list of saved locations you can reorder. Home, the office, wherever family is — all a click away.
Bring your own sources
Quota-conscious, and yours to tune. Apple WeatherKit and the free open services work out of the box. Add your own OpenWeather and Tomorrow.io API keys for more sources in the blend — stored in your Keychain, synced only to your own Apple ID, never to a server of ours. Weather Meter is built to stay inside free quotas.
Local-first, no account
Your locations and keys stay yours. There's no Abokado account and no backend. Saved locations and preferences live on your device; if you turn on sync, it uses your private iCloud, not ours. Forecast requests go straight from the app to the weather services. Official alerts keep their source attribution intact.
When you click

Cards, or a trend you can actually read.

The twelve-hour view switches between cards and a graph. The graph plots the next half-day and lets you flip the line between temperature, feels-like, wind, rain chance, and humidity — so "it cools off later" stops being a vibe and becomes a curve you can point at.

  • Temperature & feels-like — the two numbers that decide what you wear.
  • Wind, rain chance, humidity — one tap each, same graph.
  • Ten-day outlook — highs, lows, and rain, below the hourly view.
  • Freshness — every reading shows how recently it updated.
Weather Meter popover showing the 12-hour trend graph, with a temperature line over the next half-day and tabs to switch between temperature, feels-like, wind, rain percent, and humidity, above a ten-day outlook.
Weather Meter Settings — Display tab showing temperature and wind-speed units, menu bar options for weather description and confidence, font and icon size, and toggles for the 12-hour graph and cards.
Make it yours

Tune the menu bar. Choose your sources.

Pick Celsius or Fahrenheit, mph or km/h. Decide what the menu bar shows beyond the temperature — the condition description, the confidence score, the font and icon size that fit your bar. Choose whether the popover opens to cards, the graph, or both. The Sources tab is where you add provider keys and choose which services join the blend.

  • Display — units, menu bar text, font and icon size, default views.
  • Locations — current location, search, and your saved list.
  • Sources — which providers to blend, and your own API keys.
  • About — version, attribution, and update settings.
Coming soon

The same forecast, on your iPhone and Apple Watch.

The Mac menu bar app is available now. iPhone and Apple Watch versions are on the way to the App Store — a full iOS app with home-screen widgets, a watchOS app, and complications, all reading the same consensus blend from a shared cached snapshot so your widgets stay current without draining a quota. One forecast, everywhere you glance.

Want a note when they land? Email the studio and you'll hear when the iPhone and Watch apps ship.

Download

Available now for macOS.

Weather Meter 1.0 is here — free to download, free to use, free to fork. A best-consensus forecast with a confidence score, twelve-hour cards and trends, a ten-day outlook, and as many saved locations as you like. Signed and notarized by Apple, delivered directly. Updates arrive automatically through Sparkle — no reinstall, no App Store.

Requires macOS 26 or later. Apple Silicon required. Apple Developer ID signed and notarized, distributed directly with Sparkle auto-updates.

Most weather apps pick one source and sound certain. Weather Meter shows you the agreement, and lets you decide.
FAQ

Reasonable questions.

What does the confidence score actually mean?

It's a measure of how much the weather services agree. When several sources predict similar temperatures, wind, and rain, the blend is tight and confidence is high. When they diverge, confidence drops and the score tells you so. It isn't a probability that the forecast is "correct" — it's an honest read on how much consensus there is behind the number you're looking at.

Which weather services does it use?

Apple WeatherKit, OpenWeather, Open-Meteo, MET Norway, and Tomorrow.io. WeatherKit and the free open services (Open-Meteo, MET Norway) work without any setup. OpenWeather and Tomorrow.io are optional and use your own API keys if you want them in the blend. You choose which sources participate in the Sources tab.

Do I need to pay for weather data or add API keys?

No. Out of the box, Weather Meter uses Apple WeatherKit and free open services, which is enough for a solid consensus. If you already have OpenWeather or Tomorrow.io keys, you can add them for more sources in the blend. Keys are stored in your Keychain, marked synchronizable to your own Apple ID, and never sent to a server we run. Weather Meter is built to stay within free quotas.

Where do my locations and settings live?

On your device. There's no Abokado account and no backend. If you enable sync, Weather Meter uses your private iCloud key-value store to keep saved locations and preferences in step across your own devices — the same iCloud you already use, scoped to your Apple ID. Nothing about where you check the weather is sent to us.

What about severe weather alerts?

Official alerts are passed through with their source attribution and details intact. Weather Meter doesn't rewrite or summarize an alert into something that loses the original wording — when a meteorological agency issues a warning, you see it the way they issued it.

Is there an iPhone or Apple Watch version?

Coming soon, on the App Store. A full iPhone app with home-screen widgets, an Apple Watch app, and complications are in development. They read the same consensus blend from a shared cached snapshot, so widgets and complications stay current without each one making its own provider requests. The Mac menu bar app is available today.

Why isn't the Mac app on the Mac App Store?

Like the other Abokado Labs menu bar apps, Weather Meter is distributed directly — signed and notarized by Apple, with Sparkle handling updates — so it can use your own provider keys and behave like a true menu bar utility without App Store sandbox concessions. The iPhone and Apple Watch versions will ship through the App Store, where that model fits.

Open source

Free, MIT‑licensed, contributions welcome.

Weather Meter is open source under the MIT license, alongside Model Meter and Bandwidth Meter. Read it, fork it, file an issue when something breaks, or open a pull request when you want the next version to do something it doesn't yet.

From the same studio
Bandwidth Meter A free macOS menu bar app for understanding what your internet is actually doing. Live up/down rates, per-app traffic, outage detection. Open source, MIT-licensed.

Not affiliated with, endorsed by, or sponsored by Apple, OpenWeather, Open-Meteo, MET Norway, Tomorrow.io, or any weather service Weather Meter reads from. Forecast data belongs to its respective providers; official alerts keep their original attribution. · Privacy · Feedback