Medicine Lake, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Medicine Lake, a town in Sheridan County, Montana.
Overnight
54°F
Cloudy
Cloudy, with a low around 54. North northeast wind around 10 mph.
7-day forecast for Medicine Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Cloudy | 10 mph NNE | 4% |
| Saturday | 68°F | Mostly Cloudy | 10 to 14 mph NE | 1% |
| Saturday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph E | 19% |
| Sunday | 63°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph ESE | 18% |
| Sunday Night | 45°F | Partly Cloudy | 5 to 8 mph SE | 0% |
| Monday | 71°F | Mostly Sunny | 5 to 14 mph SSE | 2% |
| Monday Night | 49°F | Mostly Clear | 13 mph SSE | 1% |
| Tuesday | 76°F | Mostly Sunny | 10 to 14 mph SSE | 2% |
| Tuesday Night | 52°F | Mostly Clear | 9 to 16 mph SSE | 2% |
| Wednesday | 80°F | Mostly Sunny | 7 to 10 mph SSE | 5% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 9 mph SE | 11% |
| Thursday | 82°F | Mostly Sunny | 5 to 12 mph SSE | 2% |
| Thursday Night | 54°F | Mostly Clear | 10 mph SE | 4% |
| Friday | 80°F | Mostly Sunny | 9 to 18 mph SE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Medicine Lake (48.502, -104.502). Updated through the day.
Growing snapshot for Medicine Lake
Last spring frost
May 16
First fall frost
Sep 18
Growing season
125 days
Hardiness zone
3b
More local growing data for Medicine Lake: nearby ZIP 59247 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Medicine Lake 3 Se, Mt (4 mi from Medicine Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.