Missoula, MT Weather & Growing Conditions
Overnight
43°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 43. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Patchy Smoke | 5 mph E | 0% |
| Tuesday | 77°F | Patchy Smoke | 2 to 7 mph SE | 0% |
| Tuesday Night | 49°F | Mostly Clear | 2 to 7 mph N | 0% |
| Wednesday | 82°F | Sunny then Patchy Smoke | 2 to 6 mph W | 0% |
| Wednesday Night | 51°F | Clear | 2 to 6 mph ENE | 0% |
| Thursday | 90°F | Sunny | 2 to 7 mph SSW | 0% |
| Thursday Night | 56°F | Mostly Clear | 3 to 7 mph SSW | 0% |
| Friday | 91°F | Sunny | 3 to 9 mph SSW | 0% |
| Friday Night | 56°F | Mostly Clear | 5 to 16 mph WSW | 0% |
| Saturday | 88°F | Sunny | 3 to 8 mph SW | 0% |
| Saturday Night | 56°F | Mostly Clear | 2 to 13 mph W | 0% |
| Sunday | 85°F | Sunny | 1 to 6 mph SW | 0% |
| Sunday Night | 54°F | Mostly Clear | 1 to 9 mph N | 0% |
| Monday | 85°F | Sunny | 1 to 5 mph NNE | 0% |
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 (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.