Dayton, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dayton, a community in Lake County, Montana.
This Afternoon
45°F
Partly Sunny
Partly sunny, with a high near 45. Wind around 0 mph.
7-day forecast for Dayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Partly Sunny | 0 mph | 0% |
| Tonight | 31°F | Mostly Cloudy | 0 mph | 0% |
| Wednesday | 47°F | Partly Sunny | 1 mph SSE | 0% |
| Wednesday Night | 31°F | Partly Cloudy | 0 mph | 2% |
| Thursday | 48°F | Partly Sunny | 0 to 5 mph SSW | 12% |
| Thursday Night | 34°F | Mostly Cloudy | 2 to 6 mph SSW | 12% |
| Friday | 49°F | Partly Sunny | 2 to 7 mph SSW | 12% |
| Friday Night | 37°F | Mostly Cloudy | 2 to 9 mph SSW | 12% |
| Saturday | 52°F | Partly Sunny | 2 mph S | 2% |
| Saturday Night | 37°F | Mostly Cloudy | 0 mph | 8% |
| Sunday | 56°F | Partly Sunny then Slight Chance Light Rain | 0 to 6 mph SSW | 19% |
| Sunday Night | 38°F | Slight Chance Light Rain then Mostly Cloudy | 0 to 3 mph SSW | 19% |
| Monday | 52°F | Mostly Cloudy | 1 mph S | 13% |
| Monday Night | 38°F | Mostly Cloudy then Slight Chance Light Rain | 1 mph S | 17% |
Forecast source: National Weather Service (api.weather.gov) for Dayton (47.865, -114.277). Updated through the day.
Growing snapshot for Dayton
Last spring frost
May 1
First fall frost
Oct 15
Growing season
165 days
Hardiness zone
6a
More local growing data for Dayton: nearby ZIP 59914 weather · frost dates · planting calendar · Montana frost dates
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Climate data from the nearest NOAA station, Bigfork 13 S, Mt (12.5 mi from Dayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.