Montana Weather

Right now in Montana
54°F
Foggy

Observed at Billings (the largest city by population in Montana, used as a state-wide proxy). For per-city forecasts, see the city grid below.

Climate at a glance

Montana is largely one climate zone across 495 cities and towns. Predominantly cold semi-arid.

The state spans roughly 4.4° of latitude (44.6° N to 49.0° N), from Lakeview in the south to Sweet Grass in the north. Billings is the largest city by population.

Microseason · September 21–25 · Mountain West

Thunder retreats as the monsoon dies

Late September brings the final monsoon surge south; by month's end, the daily storm pattern collapses.

Read this microseason across nine climate regions → · See all 72 microseasons

Microseason content for Montana is drawn from the Mountain West corpus (100% of the state's cities sit in this region).

Live wind & temperature across Montana

Open the full interactive weather map

Cities in Montana

6 cities with a weather forecast page, largest first

CityJuly normalPopulation
Billings73°F129,267
Charlo69°F306
Bull Lake65°F247
Wisdom58°F110
Twin Hills Colony68°F48
Sunnybrook Colony70°F0

Our dataset lists 495 places in Montana; the 6 above have a page. For a smaller town, the nearest city above is the closest match.

The July figure is that city’s 1991–2020 normal mean temperature, rounded to the nearest degree — NOAA NCEI station normals from the nearest station where one covers the city, otherwise modelled normals (EC_Earth3P_HR via Open-Meteo); each city page names which. Populations come from SimpleMaps US Cities (CC BY 4.0). See methodology for data sources and editorial rules. Maintainer: Brian Tighe.