Windham, MT Weather & Growing Conditions
Overnight
39°F
Mostly Clear
Mostly clear. Low around 39, with temperatures rising to around 42 overnight. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Mostly Clear | 5 mph SW | 0% |
| Tuesday | 71°F | Sunny | 2 to 8 mph ENE | 0% |
| Tuesday Night | 48°F | Mostly Clear | 6 to 9 mph WSW | 2% |
| Wednesday | 80°F | Sunny | 8 to 17 mph W | 0% |
| Wednesday Night | 53°F | Mostly Clear | 5 to 14 mph W | 0% |
| Thursday | 86°F | Sunny | 8 to 15 mph W | 0% |
| Thursday Night | 57°F | Mostly Clear | 7 to 15 mph W | 0% |
| Friday | 91°F | Sunny | 7 to 20 mph WSW | 0% |
| Friday Night | 60°F | Mostly Clear | 9 to 16 mph W | 0% |
| Saturday | 90°F | Sunny | 15 mph W | 0% |
| Saturday Night | 60°F | Mostly Clear | 7 to 13 mph W | 1% |
| Sunday | 85°F | Sunny | 8 to 13 mph NW | 1% |
| Sunday Night | 57°F | Partly Cloudy | 3 to 13 mph WSW | 5% |
| Monday | 83°F | Sunny | 5 to 13 mph N | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Windham, MT
Last spring frost
May 25
First fall frost
Sep 21
Growing season
118 days
Hardiness zone
4b
Explore more for Windham, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Stanford, Mt (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.