Reserve, MT Weather & Growing Conditions
Today
72°F
Sunny
Sunny, with a high near 72. West northwest wind 12 to 17 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Sunny | 12 to 17 mph WNW | 0% |
| Tonight | 50°F | Mostly Clear | 6 to 14 mph W | 2% |
| Wednesday | 81°F | Partly Sunny | 12 to 21 mph W | 1% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 17 mph W | 2% |
| Thursday | 85°F | Sunny | 5 to 15 mph WNW | 1% |
| Thursday Night | 54°F | Mostly Clear | 9 to 15 mph NNW | 1% |
| Friday | 83°F | Sunny | 8 mph NE | 1% |
| Friday Night | 54°F | Mostly Clear | 8 to 12 mph ENE | 4% |
| Saturday | 84°F | Mostly Sunny | 8 to 13 mph NE | 1% |
| Saturday Night | 55°F | Partly Cloudy | 10 to 15 mph NE | 2% |
| Sunday | 83°F | Partly Sunny | 9 to 15 mph ENE | 8% |
| Sunday Night | 55°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 12 to 16 mph ENE | 25% |
| Monday | 80°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 to 15 mph ENE | 19% |
| Monday Night | 55°F | Partly Cloudy then Chance Showers And Thunderstorms | 12 to 16 mph ENE | 27% |
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 Aug 4, 2026.