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
82°F
Patchy Smoke
Patchy smoke before 3pm. Sunny, with a high near 82. Northeast wind 2 to 6 mph.
7-day forecast for Bonner-West Riverside
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Patchy Smoke | 2 to 6 mph NE | 0% |
| Tonight | 49°F | Mostly Clear | 1 to 7 mph NE | 0% |
| Wednesday | 88°F | Sunny then Patchy Smoke | 5 mph WSW | 0% |
| Wednesday Night | 52°F | Clear | 5 mph SE | 0% |
| Thursday | 95°F | Sunny | 2 to 6 mph SSW | 0% |
| Thursday Night | 56°F | Clear | 6 mph SSW | 0% |
| Friday | 97°F | Sunny | 2 to 8 mph SSW | 0% |
| Friday Night | 56°F | Mostly Clear | 3 to 15 mph WSW | 0% |
| Saturday | 94°F | Sunny | 2 to 8 mph SW | 0% |
| Saturday Night | 56°F | Mostly Clear | 2 to 12 mph W | 0% |
| Sunday | 91°F | Sunny | 1 to 6 mph SW | 0% |
| Sunday Night | 55°F | Mostly Clear | 1 to 9 mph N | 0% |
| Monday | 90°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 54°F | Mostly Clear | 1 to 7 mph NNE | 1% |
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
Evaro
Frenchtown
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 Aug 4, 2026.