Dark Sky: Stay Dry to the Minute

The App Store does not have a shortage of weather apps. Unfortunately, there is a shortage of good weather apps in the App Store. It is also apparent that weather apps go through trends. First there were the expected apps from The Weather Channel and AccuWeather. These apps provide a one-stop shop and a lot of detail, but will include ads and usually will have usability problems. Next, powerful radar apps starting to make more of an appearance. Now it seems the minimal weather app is making the trend through the App Store with the release of Kelvin and others.

One app that bucked the trend of how apps are developed is Dark Sky, which started out as a KickStarter project. The developers presented their idea and met their funding goal to finish the app and bring their idea to completion. The developers also decided to only focus on one aspect for their weather app: precipitation. Sound interesting? Read on to find out if DarkSky can help keep you dry.


The developers of Dark Sky wanted to re-think the typical design of a weather app from the start. The biggest design factor in a weather app is the radar functionality. The developers started with a completely fresh idea for the radar map. Instead of the normal green, yellow and red colors showing the severity of the precipitation, Dark Sky relies on a purple and yellow theme.

The Dark Sky app is well designed with an innovative new look at radar.

The Dark Sky app is well designed with an innovative new look at radar.

The radar map is not the only part of the app that has a unique design. A graph of the level of precipitation is in view when not viewing the radar map. This graph will also show the severity of precipitation along a timeline over the next hour.

The app is split into a graph of the level of precipitation and an area stating whether it is currently raining with the temperature and if it will rain in the next hour. Activating the uniquely designed radar can be achieved by pressing the radar overlay button over the precipitation graph.


As previously mentioned, Dark Sky is not competing with the full featured weather clients in the App Store. The main thrust of the app is to communicate if it will rain soon. Dark sky aims to be checked on a regular basis and to be your go-to companion before going outside, and it does so by using your current location. The app does allow manual input of a location as well, and will keep a list of the most recently pulled locations. Each location has a lock next to it which allows for you save the location to the top of the list, very similar to marking a location as a favorite.

Press within the location bar to bring up the window with recent locations and to manually enter a location.

The app does not just let you know about rain in the next hour, but also provides a full day forecast by scrolling up the Now and Next Hour boxes. The full day forecast is spread between four quadrants, which will change depending on the time of of the day.

Full day forecast is available along with future radar predictions up to an hour in the future.

Full day forecast is available along with future radar predictions up to an hour in the future.

The radar map is adjustable by time. When the radar map is activated, a scrolling timeline is active below. The timeline is adjustable back 2.5 hours and predicts the radar map an hour into the future. As previously mentioned, the radar map looks wonderfully designed.


I was hesitant that Dark Sky would work reliably with the rain prediction. Most weather apps I have tried have been terrible at weather forecasting. I know this is not specifically related to the apps themselves, but rather the backend supporting the apps, but Dark Sky uses NOAA and while testing it seemed to be pretty reliable.

On one occurrence, my radar tower could not be contacted. It was only a brief interruption. Luckily no storms were in the area.

On one occurrence, my radar tower could not be contacted. It was only a brief interruption. Luckily no storms were in the area.

When first purchasing this app I had the fortunate/unfortunate luck of having great weather. It took awhile for a storm to pop up to see how accurate the weather prediction functions. Luckily, after waiting a few days, storms finally started to make their appearance. One storm lasted most of the morning but I was able to catch the end and Dark Sky did correctly predict when the rain would stop.

An instance of successful testing was when I was debating about eating lunch outside. I pulled up the app and it informed me that it would rain during the next hour, but I had about 50 minutes before it started. I decided to take the chance, and I ended up getting back into my office in time to beat the shower that came through. I am sure there will be instances when I will get burned, but it is weather, something that is incredibly hard to predict, so I understand some rate of error.

Push Notifications

Dark Sky recently was updated to version 2.0 which brought two significant features, including USA map view and push notifications. The developers made it clear that the push notifications are an experimental feature and may not work 100% of the time. I had forgotten about the new push notification feature until I had just finished a meal¬†and I felt my phone vibrate. I pulled it out to see Dark Sky telling me that it would start to rain soon. We waited a few minutes and started to make our way to the car. On our way out, it started to sprinkle. Now that’s an impressive push notification.

A push notification kept me dry!

A push notification kept me dry!

So far I have been able to test Dark Sky with five storms. Only three of them have occurred since the introduction of push notifications in version 2.0, and the app notified me on two out of three occasions. While not perfect, I am happy with that percentage.


Dark Sky focuses on keeping you dry and keeping you informed about rainy conditions so you can be better prepared to go about your day. The usefulness of the app will depend on your location. I see it being irreplaceable in the northwest where rainy conditions are a common occurrence.

It is important to note the app does only work in the United States. The developers are currently investigating other radar networks to bring Dark Sky available to other countries, but at press time there are no new leads or a timeline for the app to be brought to the rest of the world. If you would like to try and stay dry as well, Dark Sky is worth a look.


Dark Sky reinvents the weather app by providing down-to-the-minute accurate precipitation forecast.