Missoula, MT Weather & Growing Conditions
Overnight
50°F
Chance Light Rain
A chance of rain before 3am, then a chance of rain and patchy fog between 3am and 4am, then areas of fog and a chance of rain. Cloudy, with a low around 50. Wind around 0 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Chance Light Rain | 0 mph | 43% |
| Saturday | 73°F | Areas Of Fog | 2 mph ESE | 45% |
| Saturday Night | 44°F | Mostly Clear | 3 mph SE | 4% |
| Sunday | 77°F | Patchy Fog then Sunny | 1 mph SW | 0% |
| Sunday Night | 46°F | Mostly Clear | 2 mph E | 0% |
| Monday | 80°F | Sunny | 2 mph SE | 0% |
| Monday Night | 47°F | Mostly Clear | 2 mph SSW | 0% |
| Tuesday | 80°F | Sunny | 2 mph SSE | 0% |
| Tuesday Night | 48°F | Mostly Clear | 2 mph SSW | 2% |
| Wednesday | 81°F | Sunny | 2 mph S | 1% |
| Wednesday Night | 47°F | Mostly Clear | 2 mph SW | 3% |
| Thursday | 80°F | Sunny | 1 mph S | 2% |
| Thursday Night | 47°F | Partly Cloudy | 3 mph E | 7% |
| Friday | 77°F | Mostly Sunny | 3 mph SSE | 7% |
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 (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.