Malmstrom AFB, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Malmstrom AFB, a community in Cascade County, Montana.
Overnight
42°F
Mostly Clear
Mostly clear, with a low around 42. South southwest wind around 2 mph.
7-day forecast for Malmstrom AFB
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Mostly Clear | 2 mph SSW | 0% |
| Tuesday | 78°F | Sunny | 0 to 6 mph NW | 0% |
| Tuesday Night | 50°F | Mostly Clear | 8 mph SSE | 1% |
| Wednesday | 86°F | Sunny | 6 to 9 mph WSW | 0% |
| Wednesday Night | 53°F | Mostly Clear | 8 mph S | 0% |
| Thursday | 94°F | Sunny | 8 to 12 mph WSW | 0% |
| Thursday Night | 57°F | Mostly Clear | 8 mph ESE | 0% |
| Friday | 98°F | Sunny | 5 to 17 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 9 to 13 mph W | 0% |
| Saturday | 95°F | Sunny | 9 mph W | 0% |
| Saturday Night | 59°F | Mostly Clear | 6 to 13 mph NW | 1% |
| Sunday | 90°F | Sunny | 8 mph NW | 0% |
| Sunday Night | 57°F | Partly Cloudy | 6 to 10 mph NNE | 4% |
| Monday | 88°F | Sunny | 5 to 8 mph NNW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Malmstrom AFB (47.506, -111.183). Updated through the day.
Growing snapshot for Malmstrom AFB
Last spring frost
May 6
First fall frost
Oct 1
Growing season
147 days
Hardiness zone
4b
More local growing data for Malmstrom AFB: nearby ZIP 59414 weather · frost dates · planting calendar · Montana frost dates
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Climate data from the nearest NOAA station, Great Falls 16St, Mt (2.9 mi from Malmstrom AFB). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.