Opheim, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Opheim, a town in Valley County, Montana.
Overnight
40°F
Partly Cloudy
Partly cloudy, with a low around 40. West wind around 8 mph.
7-day forecast for Opheim
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Partly Cloudy | 8 mph W | 0% |
| Tuesday | 71°F | Sunny | 8 to 15 mph WNW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 5 to 14 mph WSW | 2% |
| Wednesday | 80°F | Partly Sunny | 10 to 18 mph W | 1% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 17 mph W | 0% |
| Thursday | 85°F | Sunny | 6 to 14 mph WNW | 0% |
| Thursday Night | 54°F | Mostly Clear | 9 to 15 mph NNE | 0% |
| Friday | 85°F | Sunny | 8 mph E | 0% |
| Friday Night | 56°F | Mostly Clear | 7 to 13 mph ENE | 1% |
| Saturday | 84°F | Sunny | 13 mph NE | 1% |
| Saturday Night | 57°F | Partly Cloudy | 10 to 15 mph NE | 8% |
| Sunday | 83°F | Mostly Sunny | 15 mph NE | 5% |
| Sunday Night | 55°F | Slight Chance Showers And Thunderstorms | 15 mph ENE | 18% |
| Monday | 80°F | Chance Showers And Thunderstorms | 14 mph ENE | 27% |
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 Aug 4, 2026.