Columbia Falls, MT Weather & Growing Conditions
Tonight
31°F
Mostly Cloudy
Mostly cloudy, with a low around 31. North northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 31°F | Mostly Cloudy | 1 mph NNE | 0% |
| Wednesday | 44°F | Mostly Sunny | 2 mph ENE | 0% |
| Wednesday Night | 31°F | Mostly Clear | 1 mph SSE | 1% |
| Thursday | 41°F | Partly Sunny then Slight Chance Light Rain | 1 to 5 mph S | 22% |
| Thursday Night | 35°F | Slight Chance Rain And Snow then Mostly Cloudy | 3 to 7 mph S | 22% |
| Friday | 44°F | Mostly Cloudy then Chance Light Rain | 8 mph SSW | 25% |
| Friday Night | 36°F | Chance Light Rain | 3 to 9 mph SSW | 25% |
| Saturday | 49°F | Partly Sunny | 3 mph SSW | 8% |
| Saturday Night | 37°F | Mostly Cloudy then Chance Light Rain | 2 mph SE | 37% |
| Sunday | 50°F | Chance Light Rain | 2 to 10 mph SSW | 41% |
| Sunday Night | 37°F | Chance Light Rain | 2 to 8 mph SSW | 41% |
| Monday | 48°F | Partly Sunny then Slight Chance Light Rain | 2 mph S | 20% |
| Monday Night | 37°F | Slight Chance Light Rain | 2 mph SSW | 23% |
| Tuesday | 49°F | Slight Chance Light Rain | 3 mph SSW | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Columbia Falls, MT
Last spring frost
May 16
First fall frost
Sep 25
Growing season
129 days
Hardiness zone
5a
Explore more for Columbia Falls, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Whitefish, Mt (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.