Harman US

Shelby, MT Weather & Growing Conditions

Today
69°F
Mostly Sunny
Mostly sunny, with a high near 69. East southeast wind 5 to 8 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 69°F Mostly Sunny 5 to 8 mph ESE 1%
Tonight 44°F Partly Cloudy 3 to 8 mph SE 0%
Sunday 72°F Sunny 5 to 9 mph SE 0%
Sunday Night 46°F Mostly Clear 5 to 10 mph SE 0%
Monday 76°F Sunny 5 to 8 mph SSE 0%
Monday Night 47°F Mostly Clear 2 to 8 mph SW 0%
Tuesday 77°F Sunny 3 mph W 0%
Tuesday Night 47°F Mostly Clear 5 mph W 0%
Wednesday 76°F Mostly Sunny 2 to 6 mph WSW 1%
Wednesday Night 48°F Mostly Clear 6 mph SSW 3%
Thursday 75°F Mostly Sunny 2 to 6 mph SW 2%
Thursday Night 47°F Slight Chance Light Rain then Partly Cloudy 3 to 8 mph NE 16%
Friday 70°F Mostly Sunny 5 to 9 mph N 8%
Friday Night 45°F Chance Light Rain 12 mph NW 26%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Shelby, MT

Last spring frost
May 23
First fall frost
Sep 16
Growing season
115 days
Hardiness zone
4a

Explore more for Shelby, MT: full frost dates · planting calendar · Montana frost dates

Climate data from the nearest NOAA station, Shelby, Mt (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.