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Windham, MT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Windham, a community in Judith Basin County, Montana.

This Afternoon
56°F
Mostly Sunny
Mostly sunny. High near 56, with temperatures falling to around 46 in the afternoon. South southwest wind around 6 mph.

7-day forecast for Windham

WhenTempForecastWindPrecip
This Afternoon 56°F Mostly Sunny 6 mph SSW 0%
Tonight 32°F Partly Cloudy 2 to 7 mph WSW 0%
Wednesday 49°F Mostly Sunny 5 mph WNW 0%
Wednesday Night 30°F Mostly Clear 2 to 6 mph WSW 0%
Thursday 56°F Sunny 2 to 9 mph WSW 1%
Thursday Night 33°F Mostly Clear 3 to 13 mph WSW 1%
Friday 53°F Sunny 8 to 15 mph WSW 2%
Friday Night 36°F Partly Cloudy 10 to 21 mph WSW 7%
Saturday 53°F Mostly Sunny 6 to 20 mph WSW 1%
Saturday Night 37°F Partly Cloudy 6 to 13 mph SW 0%
Sunday 62°F Mostly Sunny 8 to 14 mph SW 0%
Sunday Night 38°F Mostly Cloudy 5 to 10 mph WSW 0%
Monday 55°F Partly Sunny 7 mph WSW 2%
Monday Night 38°F Mostly Cloudy 8 mph SSW 2%

Forecast source: National Weather Service (api.weather.gov) for Windham (47.078, -110.139). Updated through the day.

Growing snapshot for Windham

Last spring frost
May 25
First fall frost
Sep 21
Growing season
118 days
Hardiness zone
4b

More local growing data for Windham: nearby ZIP 59479 weather · frost dates · planting calendar · Montana frost dates

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Climate data from the nearest NOAA station, Stanford, Mt (9.3 mi from Windham). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.