Great Falls weather
Loading live data…Latest for Great Falls: NWS (National Blend (NBM)): 78° Mainly clear · American (NOAA GFS): 78° Overcast · European (ECMWF): 79° Light drizzle.
The weather map: all three models at once
NWS, American, European side by side around Great Falls and nearby towns.Live rain radar →Next 14 hours
consensus of the three models7-day forecast
where the models agree, and where they splitGreat Falls is a town of about 60,000 people in MT, sitting at 47.5°N in a temperate climate zone. NWS, American, European each forecast Great Falls with their own physics, so we line all three up and flag where they disagree. Nearby towns include Helena Valley Southeast, Helena Valley West Central, Helena.
Which forecast is most accurate in the US?
CheckWeather Score — graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.
Common questions
What's the weather in Great Falls today?
Will it rain in Great Falls today or tomorrow?
Which forecast is most accurate for Great Falls?
The forecasts Americans check
The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.