Marysville, MT Weather & Growing Conditions
Today
46°F
Sunny
Sunny. High near 46, with temperatures falling to around 39 in the afternoon. South wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 46°F | Sunny | 1 to 5 mph S | 0% |
| Tonight | 29°F | Mostly Clear | 3 to 8 mph SW | 0% |
| Thursday | 42°F | Partly Sunny | 8 to 13 mph WSW | 0% |
| Thursday Night | 30°F | Partly Cloudy | 10 to 14 mph WSW | 0% |
| Friday | 43°F | Mostly Sunny | 14 mph WSW | 0% |
| Friday Night | 35°F | Mostly Cloudy | 12 to 20 mph SW | 0% |
| Saturday | 51°F | Mostly Sunny | 5 to 12 mph SW | 0% |
| Saturday Night | 38°F | Partly Cloudy | 5 to 9 mph SW | 0% |
| Sunday | 54°F | Mostly Sunny | 9 to 15 mph WSW | 4% |
| Sunday Night | 35°F | Partly Cloudy | 7 to 12 mph W | 4% |
| Monday | 49°F | Partly Sunny | 3 to 7 mph WSW | 1% |
| Monday Night | 37°F | Mostly Cloudy | 3 to 9 mph WSW | 1% |
| Tuesday | 50°F | Mostly Sunny | 9 mph WSW | 4% |
| Tuesday Night | 38°F | Partly Cloudy | 9 mph WSW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marysville, MT
Last spring frost
Jun 4
First fall frost
Sep 14
Growing season
100 days
Hardiness zone
4b
Explore more for Marysville, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Austin 1 W, Mt (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.