Columbia Falls, MT Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. North northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 3 mph NNE | 0% |
| Tuesday | 77°F | Sunny | 5 mph E | 1% |
| Tuesday Night | 51°F | Mostly Clear | 0 to 3 mph WNW | 0% |
| Wednesday | 83°F | Sunny | 5 mph S | 0% |
| Wednesday Night | 53°F | Mostly Clear | 1 to 5 mph SSE | 0% |
| Thursday | 90°F | Sunny | 1 to 5 mph SE | 0% |
| Thursday Night | 56°F | Clear | 1 to 5 mph ENE | 0% |
| Friday | 91°F | Sunny | 2 to 6 mph SSE | 0% |
| Friday Night | 57°F | Clear | 2 to 12 mph E | 0% |
| Saturday | 89°F | Sunny | 2 to 9 mph S | 0% |
| Saturday Night | 57°F | Mostly Clear | 1 to 9 mph NNW | 0% |
| Sunday | 86°F | Sunny | 1 to 5 mph S | 0% |
| Sunday Night | 55°F | Mostly Clear | 5 mph NNW | 0% |
| Monday | 84°F | Sunny | 5 mph ESE | 1% |
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 Aug 4, 2026.