Bonner-West Riverside, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonner-West Riverside, a community in Missoula County, Montana.
Today
51°F
Sunny
Sunny. High near 51, with temperatures falling to around 44 in the afternoon. West northwest wind around 1 mph.
7-day forecast for Bonner-West Riverside
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Sunny | 1 mph WNW | 0% |
| Tonight | 31°F | Mostly Clear | 0 to 3 mph NW | 0% |
| Thursday | 47°F | Mostly Cloudy | 5 mph WSW | 10% |
| Thursday Night | 31°F | Partly Cloudy | 5 mph WSW | 1% |
| Friday | 51°F | Mostly Sunny | 3 mph SW | 0% |
| Friday Night | 36°F | Mostly Cloudy | 6 mph SW | 1% |
| Saturday | 58°F | Mostly Sunny | 1 to 5 mph SE | 1% |
| Saturday Night | 37°F | Partly Cloudy | 1 to 8 mph ESE | 1% |
| Sunday | 61°F | Mostly Sunny | 8 mph SW | 6% |
| Sunday Night | 36°F | Mostly Cloudy | 2 to 6 mph W | 10% |
| Monday | 56°F | Mostly Cloudy | 3 mph W | 8% |
| Monday Night | 37°F | Mostly Cloudy | 3 mph SSW | 6% |
| Tuesday | 59°F | Mostly Sunny | 5 mph SW | 16% |
| Tuesday Night | 38°F | Partly Cloudy | 2 to 6 mph SSE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Bonner-West Riverside (46.877, -113.888). Updated through the day.
Growing snapshot for Bonner-West Riverside
Last spring frost
May 10
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
5b
More local growing data for Bonner-West Riverside: nearby ZIP 59851 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Alberton
Arlee
Condon
Cyr
East Missoula
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Huson
Lolo
Missoula
Orchard Homes
Piltzville
Potomac
Seeley Lake
Turah
Twin Creeks
Wye
Climate data from the nearest NOAA station, Missoula 2 Ne, Mt (4.7 mi from Bonner-West Riverside). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.