McAllister, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McAllister, a community in Madison County, Montana.
Today
77°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 77. North wind 2 to 8 mph.
7-day forecast for McAllister
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Patchy Smoke | 2 to 8 mph N | 0% |
| Tonight | 45°F | Patchy Smoke | 1 to 9 mph NNW | 0% |
| Wednesday | 84°F | Patchy Smoke | 2 to 7 mph SW | 0% |
| Wednesday Night | 49°F | Patchy Smoke then Mostly Clear | 1 to 7 mph W | 0% |
| Thursday | 91°F | Sunny | 5 to 9 mph SW | 0% |
| Thursday Night | 54°F | Mostly Clear | 0 to 9 mph W | 0% |
| Friday | 95°F | Sunny | 5 to 21 mph SW | 0% |
| Friday Night | 55°F | Mostly Clear | 1 to 14 mph WNW | 0% |
| Saturday | 94°F | Sunny | 3 to 13 mph SW | 1% |
| Saturday Night | 55°F | Partly Cloudy | 0 to 9 mph N | 1% |
| Sunday | 92°F | Sunny | 0 to 7 mph NW | 3% |
| Sunday Night | 53°F | Partly Cloudy | 1 to 8 mph N | 7% |
| Monday | 90°F | Sunny | 0 to 7 mph N | 3% |
| Monday Night | 53°F | Partly Cloudy | 2 to 8 mph N | 6% |
Forecast source: National Weather Service (api.weather.gov) for McAllister (45.436, -111.725). Updated through the day.
Growing snapshot for McAllister
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
5a
More local growing data for McAllister: nearby ZIP 59740 weather · frost dates · planting calendar · Montana frost dates
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Virginia City
Climate data from the nearest NOAA station, Norris Madison Pwr House, Mt (8.8 mi from McAllister). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.