Shawmut, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shawmut, a community in Wheatland County, Montana.
This Afternoon
78°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 78, with temperatures falling to around 75 in the afternoon. North northeast wind 7 to 10 mph. Chance of precipitation is 40%.
7-day forecast for Shawmut
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Chance Showers And Thunderstorms | 7 to 10 mph NNE | 43% |
| Tonight | 52°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 9 mph N | 94% |
| Saturday | 60°F | Showers And Thunderstorms | 7 to 12 mph NNW | 96% |
| Saturday Night | 48°F | Rain Showers | 8 mph NNW | 88% |
| Sunday | 65°F | Rain Showers Likely | 2 to 7 mph NNW | 59% |
| Sunday Night | 47°F | Mostly Cloudy | 1 to 7 mph SE | 10% |
| Monday | 74°F | Mostly Sunny | 5 mph S | 0% |
| Monday Night | 46°F | Mostly Clear | 2 to 9 mph SSW | 0% |
| Tuesday | 79°F | Mostly Sunny | 1 to 7 mph WSW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 5 mph SE | 4% |
| Wednesday | 79°F | Sunny | 2 to 7 mph W | 3% |
| Wednesday Night | 47°F | Mostly Clear | 5 mph WSW | 1% |
| Thursday | 79°F | Sunny | 2 to 6 mph SW | 0% |
| Thursday Night | 49°F | Mostly Clear | 2 to 8 mph SE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Shawmut (46.345, -109.512). Updated through the day.
Growing snapshot for Shawmut
Last spring frost
May 26
First fall frost
Sep 18
Growing season
112 days
Hardiness zone
4b
More local growing data for Shawmut: nearby ZIP 59078 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ryegate 18 Nnw, Mt (10.3 mi from Shawmut). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.