Missoula, MT Weather & Growing Conditions
Today
45°F
Sunny
Sunny. High near 45, with temperatures falling to around 40 in the afternoon. North northwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 45°F | Sunny | 1 mph NNW | 0% |
| Tonight | 31°F | Mostly Clear | 3 mph S | 0% |
| Thursday | 42°F | Mostly Cloudy | 3 mph WSW | 5% |
| Thursday Night | 31°F | Partly Cloudy | 3 mph SW | 1% |
| Friday | 46°F | Mostly Sunny | 3 mph SSW | 0% |
| Friday Night | 37°F | Mostly Cloudy | 5 mph SSW | 1% |
| Saturday | 52°F | Mostly Sunny | 3 mph SSE | 1% |
| Saturday Night | 38°F | Partly Cloudy | 1 to 9 mph SE | 1% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Light Rain | 3 to 8 mph SW | 4% |
| Sunday Night | 37°F | Slight Chance Light Rain then Mostly Cloudy | 3 mph W | 8% |
| Monday | 51°F | Mostly Cloudy | 2 mph SW | 7% |
| Monday Night | 38°F | Mostly Cloudy | 3 mph SSW | 6% |
| Tuesday | 54°F | Mostly Sunny | 3 mph SSW | 15% |
| Tuesday Night | 40°F | Partly Cloudy | 2 to 7 mph S | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Missoula, MT
Last spring frost
May 10
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
5b
Explore more for Missoula, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Missoula 2 Ne, Mt (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.