Stevensville, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stevensville, a town in Ravalli County, Montana.
This Afternoon
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms between 1pm and 3pm. Partly sunny, with a high near 69. North wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Stevensville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Chance Showers And Thunderstorms | 3 mph N | 25% |
| Tonight | 42°F | Mostly Clear then Patchy Fog | 3 mph SSE | 4% |
| Sunday | 75°F | Patchy Fog then Sunny | 2 mph S | 0% |
| Sunday Night | 43°F | Mostly Clear | 2 mph S | 0% |
| Monday | 79°F | Sunny | 2 mph SSW | 0% |
| Monday Night | 45°F | Mostly Clear | 3 mph WSW | 1% |
| Tuesday | 79°F | Sunny | 3 mph SW | 0% |
| Tuesday Night | 45°F | Mostly Clear | 2 mph WSW | 4% |
| Wednesday | 80°F | Sunny | 3 mph SSW | 2% |
| Wednesday Night | 45°F | Mostly Clear | 3 mph WSW | 2% |
| Thursday | 79°F | Sunny | 3 mph SSW | 3% |
| Thursday Night | 45°F | Partly Cloudy | 3 mph SW | 6% |
| Friday | 77°F | Mostly Sunny | 5 mph SW | 8% |
| Friday Night | 42°F | Slight Chance Light Rain then Mostly Cloudy | 5 mph WNW | 17% |
Forecast source: National Weather Service (api.weather.gov) for Stevensville (46.507, -114.089). Updated through the day.
Growing snapshot for Stevensville
Last spring frost
May 22
First fall frost
Sep 19
Growing season
115 days
Hardiness zone
5b
More local growing data for Stevensville: nearby ZIP 59870 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Stevensville, Mt (1.3 mi from Stevensville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.