Alberton, MT Weather & Growing Conditions
This Afternoon
47°F
Mostly Cloudy
Mostly cloudy. High near 47, with temperatures falling to around 41 in the afternoon. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 47°F | Mostly Cloudy | 0 mph | 0% |
| Tonight | 29°F | Mostly Cloudy | 0 mph | 0% |
| Wednesday | 49°F | Mostly Sunny | 1 mph S | 0% |
| Wednesday Night | 29°F | Mostly Clear | 1 mph SSW | 2% |
| Thursday | 43°F | Partly Sunny | 3 mph SSW | 14% |
| Thursday Night | 30°F | Mostly Cloudy | 3 mph SSW | 2% |
| Friday | 48°F | Partly Sunny | 1 to 5 mph SSW | 4% |
| Friday Night | 34°F | Mostly Cloudy | 2 to 6 mph SSW | 5% |
| Saturday | 55°F | Partly Sunny | 0 to 3 mph S | 5% |
| Saturday Night | 36°F | Mostly Cloudy then Chance Light Rain | 0 to 3 mph S | 29% |
| Sunday | 55°F | Chance Light Rain | 2 to 8 mph SSW | 29% |
| Sunday Night | 34°F | Mostly Cloudy | 0 to 3 mph SSW | 14% |
| Monday | 51°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph SSE | 15% |
| Monday Night | 36°F | Slight Chance Light Rain | 1 mph SSW | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alberton, MT
Last spring frost
May 18
First fall frost
Sep 25
Growing season
126 days
Hardiness zone
5b
Explore more for Alberton, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Alberton, Mt (10.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.