Columbia Falls, MT Weather & Growing Conditions
Tonight
50°F
Mostly Cloudy
Mostly cloudy, with a low around 50. North northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Mostly Cloudy | 6 mph NNE | 3% |
| Saturday | 74°F | Sunny | 2 to 6 mph E | 1% |
| Saturday Night | 50°F | Partly Cloudy | 2 mph E | 0% |
| Sunday | 73°F | Sunny | 3 mph ENE | 0% |
| Sunday Night | 50°F | Clear | 2 mph NE | 0% |
| Monday | 74°F | Sunny | 3 mph E | 0% |
| Monday Night | 51°F | Mostly Clear | 1 mph SSE | 0% |
| Tuesday | 72°F | Sunny | 3 mph E | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 1 mph ESE | 1% |
| Wednesday | 70°F | Sunny | 1 to 5 mph SSE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 2 mph SSE | 2% |
| Thursday | 72°F | Mostly Sunny | 2 mph E | 3% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 3 mph NNE | 2% |
| Friday | 71°F | Mostly Sunny | 3 mph S | 4% |
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 Sep 19, 2026.