Columbus, MT Weather & Growing Conditions
Overnight
44°F
Mostly Clear
Mostly clear, with a low around 44. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 78°F | Sunny | 0 to 7 mph N | 0% |
| Tuesday Night | 47°F | Mostly Clear | 1 to 7 mph ENE | 1% |
| Wednesday | 90°F | Sunny | 1 to 6 mph W | 0% |
| Wednesday Night | 51°F | Mostly Clear | 1 to 7 mph NW | 0% |
| Thursday | 98°F | Sunny | 5 mph W | 0% |
| Thursday Night | 56°F | Mostly Clear | 2 to 14 mph NNW | 0% |
| Friday | 103°F | Sunny | 3 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 6 to 12 mph NW | 0% |
| Saturday | 100°F | Sunny | 5 to 12 mph WNW | 0% |
| Saturday Night | 59°F | Partly Cloudy | 3 to 13 mph NNW | 1% |
| Sunday | 97°F | Sunny | 3 to 7 mph N | 2% |
| Sunday Night | 59°F | Partly Cloudy | 6 to 9 mph NNE | 7% |
| Monday | 94°F | Sunny | 3 to 8 mph N | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Columbus, MT
Last spring frost
May 27
First fall frost
Sep 14
Growing season
108 days
Hardiness zone
5a
Explore more for Columbus, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Columbus, Mt (1.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.