Ronan, MT Weather & Growing Conditions
Overnight
24°F
Mostly Cloudy
Mostly cloudy, with a low around 24. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 24°F | Mostly Cloudy | 0 mph | 0% |
| Wednesday | 46°F | Mostly Sunny | 1 mph NW | 0% |
| Wednesday Night | 25°F | Mostly Clear | 2 mph SE | 1% |
| Thursday | 45°F | Slight Chance Light Rain | 1 to 5 mph S | 16% |
| Thursday Night | 27°F | Mostly Cloudy | 5 mph S | 10% |
| Friday | 50°F | Partly Sunny | 6 mph S | 12% |
| Friday Night | 32°F | Mostly Cloudy | 3 to 8 mph S | 12% |
| Saturday | 56°F | Partly Sunny | 3 mph S | 3% |
| Saturday Night | 33°F | Mostly Cloudy then Slight Chance Light Rain | 2 to 7 mph SE | 22% |
| Sunday | 58°F | Slight Chance Light Rain | 7 to 12 mph SSW | 22% |
| Sunday Night | 32°F | Slight Chance Light Rain | 2 to 7 mph S | 16% |
| Monday | 52°F | Partly Sunny then Slight Chance Light Rain | 2 mph S | 19% |
| Monday Night | 33°F | Slight Chance Light Rain | 3 mph SE | 19% |
| Tuesday | 55°F | Slight Chance Light Rain | 3 mph S | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ronan, MT
Last spring frost
May 10
First fall frost
Oct 5
Growing season
147 days
Hardiness zone
6a
Explore more for Ronan, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Polson, Mt (10.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.