Muddy, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Muddy, a community in Rosebud County, Montana.
This Afternoon
79°F
Sunny
Sunny. High near 79, with temperatures falling to around 77 in the afternoon. North wind 5 to 8 mph.
7-day forecast for Muddy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Sunny | 5 to 8 mph N | 11% |
| Tonight | 58°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 1 to 5 mph WNW | 86% |
| Saturday | 62°F | Patchy Fog | 1 to 6 mph NNE | 96% |
| Saturday Night | 53°F | Showers And Thunderstorms | 5 mph NE | 93% |
| Sunday | 60°F | Rain Showers | 6 mph WNW | 78% |
| Sunday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 0 to 3 mph NE | 28% |
| Monday | 69°F | Mostly Sunny | 0 to 3 mph ESE | 2% |
| Monday Night | 51°F | Mostly Clear | 2 mph SE | 0% |
| Tuesday | 77°F | Sunny | 2 mph S | 0% |
| Tuesday Night | 55°F | Partly Cloudy | 1 mph ENE | 8% |
| Wednesday | 78°F | Mostly Sunny | 0 to 3 mph NW | 5% |
| Wednesday Night | 55°F | Mostly Clear | 1 mph NE | 3% |
| Thursday | 79°F | Sunny | 0 to 3 mph SSE | 1% |
| Thursday Night | 56°F | Partly Cloudy | 3 mph SE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Muddy (45.580, -106.775). Updated through the day.
Growing snapshot for Muddy
Last spring frost
May 23
First fall frost
Sep 15
Growing season
113 days
Hardiness zone
5a
More local growing data for Muddy: nearby ZIP 59043 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Busby, Mt (13.7 mi from Muddy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.