Miles City, MT Weather & Growing Conditions
Overnight
29°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 29. Southwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Patchy Fog | 1 mph SW | 0% |
| Wednesday | 52°F | Patchy Fog then Mostly Sunny | 1 to 6 mph WNW | 0% |
| Wednesday Night | 30°F | Patchy Fog | 3 mph NNE | 0% |
| Thursday | 52°F | Patchy Fog then Mostly Sunny | 3 mph S | 0% |
| Thursday Night | 33°F | Partly Cloudy | 2 to 6 mph WNW | 0% |
| Friday | 54°F | Sunny | 6 to 10 mph WSW | 0% |
| Friday Night | 35°F | Mostly Clear | 6 to 13 mph SW | 0% |
| Saturday | 58°F | Sunny | 5 to 14 mph W | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph SSW | 0% |
| Sunday | 63°F | Mostly Sunny | 5 to 9 mph SW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 8 mph WNW | 1% |
| Monday | 58°F | Sunny | 5 to 8 mph WNW | 1% |
| Monday Night | 35°F | Partly Cloudy | 5 mph S | 1% |
| Tuesday | 59°F | Mostly Sunny | 5 to 8 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Miles City, MT
Last spring frost
May 8
First fall frost
Sep 30
Growing season
144 days
Hardiness zone
4a
Explore more for Miles City, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Miles City F Wiley Fld, Mt (18.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.