Outforecast the forecast · US only

Think you know weather? Prove it.

Tornado outbreak bearing down on the Plains. Hurricane track shifting overnight. You already watch it unfold — now put your forecast on the record and see exactly how you stack up against the weather service.

01
Storm Mode Severe weather

When severe weather threatens, Storm Mode goes live. Predict tornado outbreaks days before they happen — starting at Day 3 and narrowing your forecast as the event develops. Hurricane tracks. Winter storms. Your accuracy is tracked against the official weather service forecast, event by event, season by season.

02
Daily Forecast Free to play

Two forecast windows. Morning and evening. Pick your mode — Casual, Standard, or Expert — and call your shot on temperature, precipitation, wind, and more. Your Forecast Accuracy Rating builds over time: a running record of skill, not luck.

03
Head to Head Coming at launch

Challenge anyone on the leaderboard to a seven-day duel. You each call your own city, in your own windows — seven rounds, one a day, and whoever takes the most rounds takes the match. You see the score each morning and who took each day, but never each other's forecasts. Your record follows you.

04
Games Quick play

Weather-specific mini-games built from real data. Predict future weather variables for different cities in a rapid-fire High / Low game. Predict a storm's future track in Radar Trace. Plot high and low pressure areas in Isobar. Fast rounds, real meteorology.

What it actually looks like

The RivalWx home screen with the morning window open: current conditions for New Haven, a note from Stormy, an Update Prediction button, and the seven-day forecast.
Open it. Your conditions, your week, and a window to call it in.
RivalWx forecast comparison showing the GFS and NAM model guidance beside Stormy's call, then a temperature dial where the player picks their own number.
Weigh it up. The models, side by side, then your number.
Making a precipitation call in RivalWx: type, amount to the hundredth of an inch, start time and end time, with the weather service's own number shown alongside.
Make the call. Down to the hundredth of an inch, and when it starts.
A scored RivalWx result reading You Beat Stormy, 45 of 76 points, with a category-by-category breakdown.
Find out. Scored against the record, category by category.
RivalWx Storm Mode during severe weather, showing an active Severe Thunderstorm Watch and Warning issued by the weather service.
And when it turns. Real watches and warnings, and a call to make.

Who's building this

30 years of game design. One weather obsession.

RivalWx is built by a Skywarn-trained storm spotter who has spent 30 years designing video, casual, and mobile games. Every scoring system, every leaderboard mechanic, every badge threshold — designed by someone who tracks supercells for fun and ships games for a living.