Alder, MT Weather & Growing Conditions
Overnight
40°F
Areas Of Smoke
Areas of smoke. Mostly clear, with a low around 40. East southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Areas Of Smoke | 3 mph ESE | 0% |
| Tuesday | 72°F | Areas Of Smoke | 1 to 9 mph WNW | 0% |
| Tuesday Night | 45°F | Areas Of Smoke | 2 to 8 mph ESE | 0% |
| Wednesday | 78°F | Patchy Smoke | 1 to 8 mph WSW | 0% |
| Wednesday Night | 49°F | Patchy Smoke then Mostly Clear | 2 to 7 mph W | 0% |
| Thursday | 86°F | Sunny | 1 to 10 mph SW | 0% |
| Thursday Night | 54°F | Mostly Clear | 2 to 10 mph WSW | 0% |
| Friday | 88°F | Sunny | 2 to 17 mph SW | 0% |
| Friday Night | 55°F | Mostly Clear | 2 to 18 mph WSW | 0% |
| Saturday | 87°F | Sunny | 2 to 16 mph SW | 3% |
| Saturday Night | 55°F | Partly Cloudy | 2 to 15 mph SW | 1% |
| Sunday | 86°F | Sunny | 2 to 13 mph SW | 2% |
| Sunday Night | 53°F | Partly Cloudy | 2 to 14 mph NNE | 3% |
| Monday | 84°F | Sunny | 1 to 10 mph WSW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alder, MT
Last spring frost
Jun 6
First fall frost
Sep 14
Growing season
98 days
Hardiness zone
5a
Explore more for Alder, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Alder 17 S, Mt (1.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.