Elkhorn, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Elkhorn, a community in Jefferson County, Montana.
Today
67°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 67. South southwest wind 2 to 7 mph.
7-day forecast for Elkhorn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Patchy Smoke | 2 to 7 mph SSW | 0% |
| Tonight | 47°F | Patchy Smoke then Mostly Clear | 6 mph N | 1% |
| Wednesday | 76°F | Sunny | 3 to 8 mph W | 0% |
| Wednesday Night | 52°F | Patchy Smoke then Mostly Clear | 8 mph WNW | 0% |
| Thursday | 83°F | Sunny | 5 to 10 mph W | 0% |
| Thursday Night | 57°F | Mostly Clear | 6 to 10 mph WNW | 0% |
| Friday | 86°F | Sunny | 5 to 15 mph WSW | 0% |
| Friday Night | 58°F | Mostly Clear | 9 to 15 mph WNW | 0% |
| Saturday | 83°F | Sunny | 5 to 12 mph W | 0% |
| Saturday Night | 58°F | Mostly Clear | 7 to 12 mph NW | 1% |
| Sunday | 80°F | Sunny | 5 to 9 mph WNW | 2% |
| Sunday Night | 56°F | Mostly Clear | 7 to 10 mph NNW | 2% |
| Monday | 78°F | Sunny | 5 to 8 mph N | 2% |
| Monday Night | 56°F | Partly Cloudy | 9 mph NNW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Elkhorn (46.284, -111.949). Updated through the day.
Growing snapshot for Elkhorn
Last spring frost
Jun 18
First fall frost
Sep 5
Growing season
81 days
Hardiness zone
4b
More local growing data for Elkhorn: nearby ZIP 59638 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Tizer Gardens, Mt (1.1 mi from Elkhorn). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.