Reserve, MT Weather & Growing Conditions
Today
52°F
Patchy Fog then Sunny
Patchy fog before 8am. Sunny. High near 52, with temperatures falling to around 44 in the afternoon. North wind 3 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 52°F | Patchy Fog then Sunny | 3 to 8 mph N | 0% |
| Tonight | 26°F | Partly Cloudy | 2 to 6 mph NNE | 0% |
| Thursday | 47°F | Partly Sunny | 3 to 10 mph SE | 0% |
| Thursday Night | 32°F | Partly Cloudy | 8 mph SW | 0% |
| Friday | 53°F | Sunny | 7 to 13 mph WSW | 0% |
| Friday Night | 34°F | Partly Cloudy | 8 to 15 mph SW | 0% |
| Saturday | 56°F | Mostly Sunny | 7 to 17 mph WNW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 7 mph SW | 0% |
| Sunday | 60°F | Mostly Sunny | 5 to 13 mph SW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 9 to 16 mph W | 0% |
| Monday | 55°F | Mostly Sunny | 6 to 15 mph WNW | 1% |
| Monday Night | 32°F | Partly Cloudy | 6 mph WSW | 2% |
| Tuesday | 55°F | Mostly Sunny | 5 to 9 mph SSW | 2% |
| Tuesday Night | 35°F | Partly Cloudy | 7 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Reserve, MT
Last spring frost
May 16
First fall frost
Sep 18
Growing season
125 days
Hardiness zone
3b
Explore more for Reserve, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Medicine Lake 3 Se, Mt (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.