McAllister, MT Weather & Growing Conditions
Today
74°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 74. North wind 1 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Patchy Smoke | 1 to 8 mph N | 0% |
| Tonight | 48°F | Patchy Smoke | 1 to 7 mph NW | 1% |
| Wednesday | 81°F | Patchy Smoke | 2 to 8 mph SW | 0% |
| Wednesday Night | 52°F | Patchy Smoke then Mostly Clear | 2 to 7 mph WSW | 0% |
| Thursday | 89°F | Sunny | 5 to 10 mph WSW | 0% |
| Thursday Night | 56°F | Mostly Clear | 1 to 10 mph W | 0% |
| Friday | 91°F | Sunny | 5 to 17 mph SW | 0% |
| Friday Night | 58°F | Mostly Clear | 2 to 13 mph W | 0% |
| Saturday | 90°F | Sunny | 3 to 10 mph WSW | 1% |
| Saturday Night | 58°F | Partly Cloudy | 0 to 9 mph WNW | 2% |
| Sunday | 88°F | Sunny | 1 to 8 mph W | 2% |
| Sunday Night | 56°F | Partly Cloudy | 2 to 10 mph NNW | 8% |
| Monday | 86°F | Sunny | 0 to 8 mph NNE | 2% |
| Monday Night | 56°F | Partly Cloudy | 2 to 9 mph NNW | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for McAllister, MT
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
5a
Explore more for McAllister, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Norris Madison Pwr House, Mt (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.