After Selling to Apple, Dark Sky’s Creators Are Reinventing Weather Forecasting Again

The creators of Dark Sky, the cult-favorite weather app acquired by Apple in 2020, pulled off something rare: they made forecasting feel personal. Dark Sky was beloved for its hyperlocal rain predictions, precise alerts and emphasis on data visualization. Now, three of its creators—Adam Grossman, Josh Reyes and Dan Abrutyn—are taking another swing at weather forecasting with Acme Weather, a new app that blends sophisticated data with fun features like rainbow and sunset alerts.

“Our biggest...