Montana weather today
We follow 24 towns and cities in Montana, each with NWS, American, European side by side and the days they disagree flagged. Today the three models put highs between 67°F in Great Falls and 73°F in Missoula, and no model gives a 50% or higher chance of rain in any of the 4 places we hold today's forecast for.
Numbers from the forecast run of Saturday, October 3. Open any town for the live, hour-by-hour comparison.
Weather in Montana's largest cities today
consensus of NWS, American, European, forecast run of Saturday, October 3Rain chance is the highest of the three models. "Models agree" compares their forecast highs, the same confidence rule as on every city page.
Montana weather alerts and warnings
active National Weather Service watches, warnings and advisoriesChecking the National Weather Service for active alerts in Montana…
The past week across Montana
analysed, the seven days September 22 to September 28Estimates from NASA POWER (GEOS-IT weather analysis, FLASHFlux satellite sunlight), not forecasts or station readings. Warmest and coolest are the average daily high. "Sunniest" is the sunlight that reached the ground as a share of what a clear sky would give at that latitude and date (FAO-56 clear-sky formula, approximate). Each value covers an area of about 50 km around the town, so one town per area. Rain is left out because weekly rain estimates differ too much between data sources to rank them honestly. The week ends a few days back because the sunlight data arrives with a delay.
Which forecast is most accurate in Montana?
Over the last 30 days we graded the models in 6 Montana cities against the recorded weather. The European model was most accurate in 6 of them. No model wins everywhere, which is why each city page names its own winner.
How we grade: the US accuracy scoreboard and our method.
Montana climate, city by city
Across the 14 Montana places we hold long-run averages for, typical July highs run from 78°F in West Yellowstone to 89°F in Lockwood, and January highs from 24°F in West Yellowstone to 37°F in Billings. Columbia Falls is the wettest at about 25 in of precipitation a year, Helena Valley Southeast the driest at about 12 in.
Averages from ERA5 reanalysis, the same source as the climate tables on each city page.