Marysville, MT Weather & Growing Conditions
Tonight
50°F
Showers And Thunderstorms
Showers and thunderstorms before 3am, then rain. Cloudy. Low around 50, with temperatures rising to around 53 overnight. Northeast wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Showers And Thunderstorms | 6 mph NE | 93% |
| Saturday | 56°F | Showers And Thunderstorms | 8 mph NE | 88% |
| Saturday Night | 46°F | Mostly Cloudy | 2 to 7 mph SSW | 6% |
| Sunday | 66°F | Mostly Sunny | 5 mph SW | 0% |
| Sunday Night | 47°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 69°F | Sunny | 5 to 8 mph WSW | 0% |
| Monday Night | 49°F | Mostly Clear | 7 mph WSW | 0% |
| Tuesday | 69°F | Sunny | 7 mph WSW | 0% |
| Tuesday Night | 50°F | Mostly Clear | 6 mph WSW | 1% |
| Wednesday | 69°F | Sunny | 5 to 9 mph WSW | 2% |
| Wednesday Night | 50°F | Mostly Clear | 6 mph WSW | 2% |
| Thursday | 71°F | Sunny | 6 mph S | 0% |
| Thursday Night | 52°F | Mostly Clear | 6 mph S | 1% |
| Friday | 71°F | Mostly Sunny | 5 to 8 mph SSW | 1% |
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 Sep 19, 2026.