Opheim, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Opheim, a town in Valley County, Montana.
This Afternoon
48°F
Sunny
Sunny. High near 48, with temperatures falling to around 40 in the afternoon. Southwest wind 5 to 8 mph.
7-day forecast for Opheim
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Sunny | 5 to 8 mph SW | 0% |
| Tonight | 30°F | Mostly Clear | 6 mph SW | 0% |
| Wednesday | 50°F | Sunny | 5 mph NW | 0% |
| Wednesday Night | 28°F | Partly Cloudy | 3 to 8 mph SE | 0% |
| Thursday | 48°F | Mostly Sunny | 7 to 12 mph S | 0% |
| Thursday Night | 32°F | Partly Cloudy | 7 to 12 mph WSW | 0% |
| Friday | 48°F | Sunny | 12 to 15 mph WSW | 3% |
| Friday Night | 34°F | Partly Cloudy | 12 to 16 mph WSW | 7% |
| Saturday | 51°F | Sunny | 7 to 17 mph WSW | 4% |
| Saturday Night | 33°F | Mostly Clear | 7 to 12 mph SSW | 0% |
| Sunday | 56°F | Mostly Sunny | 14 mph SW | 1% |
| Sunday Night | 36°F | Partly Cloudy | 14 to 20 mph W | 1% |
| Monday | 49°F | Mostly Sunny | 6 to 15 mph W | 1% |
| Monday Night | 33°F | Partly Cloudy | 6 to 9 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Opheim (48.857, -106.408). Updated through the day.
Growing snapshot for Opheim
Last spring frost
Jun 5
First fall frost
Sep 2
Growing season
89 days
Hardiness zone
3b
More local growing data for Opheim: nearby ZIP 59240 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Opheim 12 Sse, Mt (10.7 mi from Opheim). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.