Arlee, MT Weather & Growing Conditions
Overnight
48°F
Cloudy
Cloudy, with a low around 48. East northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Cloudy | 3 mph ENE | 6% |
| Saturday | 63°F | Partly Sunny then Slight Chance Light Rain | 3 mph ENE | 20% |
| Saturday Night | 45°F | Partly Cloudy | 2 to 9 mph ESE | 4% |
| Sunday | 66°F | Sunny | 6 mph SSW | 0% |
| Sunday Night | 46°F | Mostly Clear | 2 to 6 mph E | 0% |
| Monday | 69°F | Sunny | 3 to 7 mph S | 0% |
| Monday Night | 48°F | Mostly Clear | 2 to 6 mph SW | 0% |
| Tuesday | 69°F | Sunny | 6 mph SSW | 0% |
| Tuesday Night | 48°F | Mostly Clear | 2 to 6 mph ESE | 1% |
| Wednesday | 69°F | Sunny | 3 to 8 mph S | 1% |
| Wednesday Night | 49°F | Mostly Clear | 2 to 6 mph SSE | 4% |
| Thursday | 68°F | Sunny | 6 mph SSW | 2% |
| Thursday Night | 49°F | Partly Cloudy | 2 to 6 mph ESE | 9% |
| Friday | 66°F | Mostly Sunny | 6 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arlee, MT
Last spring frost
May 12
First fall frost
Oct 2
Growing season
142 days
Hardiness zone
5b
Explore more for Arlee, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Saint Ignatius, Mt (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.