Columbia Falls, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Columbia Falls, a city in Flathead County, Montana.
This Afternoon
73°F
Sunny
Sunny, with a high near 73. South wind around 2 mph.
7-day forecast for Columbia Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Sunny | 2 mph S | 0% |
| Tonight | 49°F | Mostly Clear | 1 mph NE | 1% |
| Sunday | 73°F | Sunny | 0 to 3 mph E | 0% |
| Sunday Night | 48°F | Mostly Clear | 1 mph NE | 0% |
| Monday | 75°F | Sunny | 3 mph ESE | 0% |
| Monday Night | 49°F | Mostly Clear | 1 mph W | 0% |
| Tuesday | 75°F | Mostly Sunny | 0 to 3 mph NE | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 1 mph W | 1% |
| Wednesday | 72°F | Mostly Sunny | 0 to 5 mph S | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 3 mph WSW | 4% |
| Thursday | 68°F | Mostly Sunny | 0 to 3 mph SSW | 2% |
| Thursday Night | 48°F | Partly Cloudy | 2 mph NE | 11% |
| Friday | 67°F | Partly Sunny | 2 mph NW | 13% |
| Friday Night | 47°F | Slight Chance Light Rain | 3 mph N | 20% |
Forecast source: National Weather Service (api.weather.gov) for Columbia Falls (48.371, -114.192). Updated through the day.
Growing snapshot for Columbia Falls
Last spring frost
May 16
First fall frost
Sep 25
Growing season
129 days
Hardiness zone
5a
More local growing data for Columbia Falls: nearby ZIP 59912 weather · frost dates · planting calendar · Montana frost dates
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Climate data from the nearest NOAA station, Whitefish, Mt (9 mi from Columbia Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.