Missoula, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Missoula, a city in Missoula County, Montana.
This Afternoon
75°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 75. West northwest wind around 3 mph. Chance of precipitation is 20%.
7-day forecast for Missoula
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Slight Chance Showers And Thunderstorms | 3 mph WNW | 20% |
| Tonight | 51°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 mph N | 72% |
| Saturday | 72°F | Areas Of Fog then Chance Rain Showers | 1 mph N | 33% |
| Saturday Night | 47°F | Partly Cloudy then Patchy Fog | 2 mph SE | 3% |
| Sunday | 77°F | Patchy Fog then Sunny | 1 mph E | 0% |
| Sunday Night | 48°F | Clear | 2 mph SE | 0% |
| Monday | 80°F | Sunny | 2 mph E | 0% |
| Monday Night | 50°F | Mostly Clear | 1 mph WNW | 0% |
| Tuesday | 79°F | Sunny | 1 mph NNW | 0% |
| Tuesday Night | 49°F | Mostly Clear | 1 mph SE | 1% |
| Wednesday | 78°F | Sunny | 1 mph E | 3% |
| Wednesday Night | 49°F | Mostly Clear | 1 mph E | 2% |
| Thursday | 81°F | Sunny | 2 mph SE | 1% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 6 mph ENE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Missoula (46.874, -114.026). Updated through the day.
Growing snapshot for Missoula
Last spring frost
May 10
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
5b
More local growing data for Missoula: nearby ZIP 59801 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Alberton
Arlee
Bonner-West Riverside
Condon
Cyr
East Missoula
Evaro
Frenchtown
Huson
Lolo
Orchard Homes
Piltzville
Potomac
Seeley Lake
Turah
Twin Creeks
Wye
Climate data from the nearest NOAA station, Missoula 2 Ne, Mt (3.6 mi from Missoula). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.