Harman US

Sheridan, MT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Sheridan, a town in Madison County, Montana.

Tonight
27°F
Mostly Cloudy
Mostly cloudy, with a low around 27. East northeast wind 0 to 3 mph.

7-day forecast for Sheridan

WhenTempForecastWindPrecip
Tonight 27°F Mostly Cloudy 0 to 3 mph ENE 0%
Wednesday 47°F Mostly Sunny 1 mph N 0%
Wednesday Night 26°F Mostly Clear 1 to 9 mph SSE 0%
Thursday 46°F Mostly Sunny 2 to 9 mph S 10%
Thursday Night 27°F Partly Cloudy 7 mph S 10%
Friday 47°F Mostly Sunny 5 to 8 mph S 5%
Friday Night 28°F Partly Cloudy 8 to 15 mph S 5%
Saturday 49°F Mostly Sunny 3 to 9 mph S 0%
Saturday Night 30°F Partly Cloudy 5 to 16 mph SSE 0%
Sunday 55°F Mostly Sunny 5 to 14 mph S 1%
Sunday Night 32°F Mostly Cloudy 6 to 12 mph S 1%
Monday 53°F Partly Sunny 2 to 6 mph S 2%
Monday Night 33°F Mostly Cloudy 3 to 10 mph S 2%
Tuesday 54°F Partly Sunny 3 to 9 mph S 4%

Forecast source: National Weather Service (api.weather.gov) for Sheridan (45.459, -112.195). Updated through the day.

Growing snapshot for Sheridan

Last spring frost
May 24
First fall frost
Sep 22
Growing season
117 days
Hardiness zone
5a

More local growing data for Sheridan: nearby ZIP 59749 weather · frost dates · planting calendar · Montana frost dates

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Climate data from the nearest NOAA station, Laurin 2Ne, Mt (6.1 mi from Sheridan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.