Columbus, MT Weather & Growing Conditions
Overnight
25°F
Patchy Fog
Patchy fog. Mostly clear. Low around 25, with temperatures rising to around 27 overnight. West wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 25°F | Patchy Fog | 2 mph W | 0% |
| Wednesday | 56°F | Patchy Fog then Sunny | 1 to 5 mph WSW | 0% |
| Wednesday Night | 26°F | Patchy Fog | 0 to 3 mph WSW | 0% |
| Thursday | 58°F | Patchy Fog then Slight Chance Rain Showers | 3 mph WSW | 15% |
| Thursday Night | 30°F | Slight Chance Rain Showers | 2 to 7 mph W | 15% |
| Friday | 58°F | Sunny | 3 to 10 mph SW | 0% |
| Friday Night | 31°F | Partly Cloudy | 7 mph SW | 0% |
| Saturday | 62°F | Sunny | 2 to 6 mph SW | 0% |
| Saturday Night | 32°F | Mostly Clear | 6 mph SSW | 0% |
| Sunday | 65°F | Mostly Sunny | 6 mph SSW | 0% |
| Sunday Night | 33°F | Partly Cloudy | 5 mph WSW | 0% |
| Monday | 60°F | Mostly Sunny | 3 mph W | 1% |
| Monday Night | 31°F | Mostly Cloudy | 3 mph SSW | 1% |
| Tuesday | 62°F | Mostly Sunny | 3 mph WSW | 0% |
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 Nov 4, 2026.