Musselshell, MT Weather & Growing Conditions
Tonight
53°F
Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 8pm and 10pm, then a chance of showers and thunderstorms between 10pm and midnight, then a chance of showers and thunderstorms between midnight and 2am, then showers and thunderstorms. Mostly cloudy. Low around 53, with temperatures rising to around 55 overnight. North wind 5 to 8 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 87% |
| Saturday | 60°F | Showers And Thunderstorms | 9 to 13 mph NNE | 96% |
| Saturday Night | 50°F | Showers And Thunderstorms | 10 mph NNE | 91% |
| Sunday | 62°F | Rain Showers | 8 mph NNE | 84% |
| Sunday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 1 to 6 mph E | 18% |
| Monday | 71°F | Partly Sunny | 1 to 8 mph S | 0% |
| Monday Night | 48°F | Mostly Clear | 2 to 7 mph SSE | 0% |
| Tuesday | 79°F | Mostly Sunny | 5 mph SW | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 3 mph SSE | 1% |
| Wednesday | 79°F | Sunny | 2 to 6 mph SW | 4% |
| Wednesday Night | 51°F | Mostly Clear | 3 mph S | 2% |
| Thursday | 80°F | Sunny | 3 to 7 mph S | 1% |
| Thursday Night | 51°F | Mostly Clear | 5 mph SSE | 1% |
| Friday | 80°F | Mostly Sunny | 3 to 7 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Musselshell, MT
Last spring frost
May 10
First fall frost
Sep 29
Growing season
141 days
Hardiness zone
4b
Explore more for Musselshell, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Melstone, Mt (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.