Harman US

Plevna, MT Weather & Growing Conditions

This Afternoon
48°F
Sunny
Sunny. High near 48, with temperatures falling to around 42 in the afternoon. Northwest wind 3 to 9 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 48°F Sunny 3 to 9 mph NW 0%
Tonight 27°F Partly Cloudy 2 mph SSW 0%
Wednesday 52°F Mostly Sunny 2 to 8 mph W 0%
Wednesday Night 29°F Patchy Fog 5 mph WSW 0%
Thursday 57°F Mostly Sunny 5 mph S 0%
Thursday Night 32°F Partly Cloudy 5 mph SSW 0%
Friday 54°F Sunny 3 to 9 mph WSW 1%
Friday Night 35°F Mostly Clear 5 to 8 mph SW 6%
Saturday 56°F Sunny 7 to 15 mph W 4%
Saturday Night 34°F Mostly Clear 7 mph SW 0%
Sunday 64°F Sunny 6 to 10 mph SW 0%
Sunday Night 40°F Partly Cloudy 7 mph W 0%
Monday 57°F Mostly Sunny 3 to 9 mph WNW 0%
Monday Night 36°F Partly Cloudy 5 mph SSW 1%

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

Growing snapshot for Plevna, MT

Last spring frost
May 21
First fall frost
Sep 20
Growing season
121 days
Hardiness zone
4a

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

Climate data from the nearest NOAA station, Plevna, Mt (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.