The team behind Dark Sky is back with a new iPhone app called Acme Weather and it’s taking aim at one of the biggest frustrations with modern forecasting: overconfidence.
Rather than presenting a single guess like most weather apps, Acme Weather highlights forecast uncertainty.
The headline feature, called Alternative Forecasts, shows multiple possible outcomes alongside the primary prediction. In doing so, it acknowledges that weather models aren’t always right.
Dark Sky co-creator Adam Grossman says the idea is simple: forecasts are inherently imperfect. Instead of hiding that reality, Acme Weather visualises it. If the alternate forecast lines cluster tightly together, conditions are likely stable. If they spread out significantly, it signals volatility — and a higher chance that things could change.
The main forecast is still generated using traditional inputs such as numerical weather prediction models, satellite data, radar and ground station observations. The company claims the core model is more advanced than what powered Dark Sky. However, the difference here is transparency. Users can see the range of plausible scenarios, whether that’s a storm arriving earlier than expected or snowfall turning to rain.
Beyond forecasting, Acme Weather includes community reporting, allowing users to submit real-time local conditions. There are also detailed map layers for radar, lightning, snow totals, temperature and cloud cover. Notifications go further than basic rain alerts too, covering severe weather warnings, nearby lightning strikes and even rainbow visibility.
The approach feels like a response to a common complaint — that weather apps often appear definitive until they suddenly aren’t. By building uncertainty into the interface itself, Acme Weather aims to make forecasts feel more honest rather than less reliable.
Acme Weather is available now on the App Store for iPhone, priced at $25 per year with a two-week free trial. An Android version is in development. It looks to be only available in the US for now, with no UK app to be found.
The post The new Acme app could fix the a long-time complaint about weather apps appeared first on Trusted Reviews.

