Cumulus brings the most accurate weather data and shows it in a simplified layout that makes it less stressful when looking at the weather.

Practical Design
Cumulus is designed to not make you feel overwhelmed with data while also never leaving you unprepared. View hourly forecasts up to 24 hours in advance and daily forecasts up to 10 days.

Extended Forecasts
Tap the current conditions card to view different conditions like cloud cover and sunrise or sunset. Swipe the hourly cards to view hourly conditions like precipitation, accumulation or wind. Tap the daily cards to view conditions like visibility or pressure. All done seamlessly with just a tap or swipe.

Siri Shortcuts
Record a custom phrase with Siri and get told everything you need to know about the weather around your location, like current temperatures and any precipitation in your area. All without lifting a finger!

Today Widget
Check the weather at a glance without unlocking your phone with the Cumulus Today Widget. Look at what current weather conditions are and what's going to happen in the coming hours and up to four days in advance.

Powered by the best
Cumulus' forecasting abilities are powered by the Dark Sky servers. They allow Cumulus to get countless information about the weather like knowing when precipitation will start and end, or seeing future weather conditions.

What's included?
The free version of Cumulus gives you all the meteorological goodness with no obtrusive ads. Upgrade to Cumulus+ to unlock advanced features including custom app icons, color themes, customization features, and more!

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What’s New

Version 2.0.6

This update includes some fixes that improves data loading from the Dark Sky servers. Widgets are not quite ready yet but are getting very close to release, so keep an eye out for an update in the coming weeks.

Ratings and Reviews

4.3 out of 5
25 Ratings

25 Ratings


Almost there, but needs more sources

Dark Sky just isn’t accurate for everyone. Great design, though.

hardaysknight ,

Looks nice, but a little buggy

Found on /r/Apple. Radar map timeline doesn’t seem to work. It also doesn’t show precipitation on the radar. When I hit the current location button in radar, it puts my location in the bottom right side of the radar map. On the home screen of the app, the hourly forecast doesn’t scroll like I think it was intended to. You have to hit the dots to go to the next hours in the list.

It looks good, but currently doesn’t beat accuweather for me.

Mason Warren ,

Great start, some improvements needed

First off, great app! Clearly a lot of time and labor went into this.

There need to be some refinements to make this a 5-star app. For example, when I open the map, it always centers on a neighboring state (Indiana) and then I have to manually locate myself (Kentucky). Not a huge problem, just more of an inconvenience. Also, when I try to enable notifications in the preferences tab, I can’t. I’d like to enable notifications, but can’t seem to get it to work.

Overall, good app, just some slight refinements needed.


Joseph Szafarowicz
22.9 MB

Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Cumulus+ Lifetime $14.99
  2. Cumulus+ Monthly $0.49
  3. Cumulus+ Yearly $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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