Basin, MT Weather & Growing Conditions
Overnight
37°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 37. North northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 37°F | Patchy Smoke | 2 mph NNE | 0% |
| Tuesday | 65°F | Patchy Smoke | 2 to 8 mph ENE | 0% |
| Tuesday Night | 44°F | Patchy Smoke then Mostly Clear | 2 to 8 mph NW | 1% |
| Wednesday | 72°F | Sunny then Patchy Smoke | 3 to 9 mph W | 0% |
| Wednesday Night | 48°F | Patchy Smoke then Mostly Clear | 3 to 9 mph W | 0% |
| Thursday | 79°F | Sunny | 5 to 10 mph W | 0% |
| Thursday Night | 53°F | Clear | 5 to 12 mph WSW | 0% |
| Friday | 81°F | Sunny | 6 to 16 mph WSW | 1% |
| Friday Night | 53°F | Mostly Clear | 8 to 17 mph WNW | 0% |
| Saturday | 80°F | Sunny | 6 to 13 mph W | 0% |
| Saturday Night | 53°F | Mostly Clear | 5 to 15 mph WNW | 1% |
| Sunday | 77°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 50°F | Mostly Clear | 3 to 10 mph NW | 1% |
| Monday | 76°F | Sunny | 3 to 8 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Basin, MT
Last spring frost
Jun 7
First fall frost
Sep 8
Growing season
90 days
Hardiness zone
5a
Explore more for Basin, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Boulder, Mt (13.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.