5-day weather forecast for Great Falls, Montana

Weather changeability for Helena, Montana

Temperature Last Month Last Year
Average change in high temperature day-to-day 7.5° 6.5°
Average change in low temperature day-to-day 5.8° 6.1°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 63%
Chance of precip day after a dry day 29% 20%

Weather forecast accuracy for Helena, Montana

Last Month
The Weather Channel   73.81%
Weather Underground   73.81%
MeteoGroup   71.73%
Foreca   71.13%
Dark Sky (forecast.io)   71.13%
AccuWeather   70.83%
NWS Digital Forecast   65.38%
World Weather Online   52.38%
Persistence   38.71%
Last Year
The Weather Channel   74.18%
Weather Underground   73.17%
MeteoGroup   72.15%
Foreca   70.55%
AccuWeather   70.46%
Dark Sky (forecast.io)   61.01%
NWS Digital Forecast   59.03%
World Weather Online   57.05%
Persistence   47.99%

ForecastAdvisor Fact

It rained or snowed 69% of the time in Helena last month when Dark Sky (forecast.io)'s text forecasts called for precipitation, and 17% of the time when they did not.