Harman US

Camp Three, MT Weather & Growing Conditions

Tonight
52°F
Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then a chance of showers and thunderstorms between midnight and 1am, then showers and thunderstorms. Cloudy. Low around 52, with temperatures rising to around 55 overnight. North wind 8 to 13 mph. Chance of precipitation is 90%.

7-day forecast

WhenTempForecastWindPrecip
Tonight 52°F Chance Showers And Thunderstorms 8 to 13 mph N 89%
Saturday 59°F Showers And Thunderstorms 15 mph NNE 94%
Saturday Night 50°F Showers And Thunderstorms 14 mph NNE 88%
Sunday 61°F Rain Showers 10 mph NNE 77%
Sunday Night 47°F Mostly Cloudy 1 to 7 mph E 10%
Monday 72°F Mostly Sunny 3 to 8 mph SSW 0%
Monday Night 48°F Mostly Clear 2 to 8 mph SSW 0%
Tuesday 78°F Mostly Sunny 6 mph SW 0%
Tuesday Night 51°F Partly Cloudy 1 to 5 mph S 2%
Wednesday 78°F Sunny 3 to 7 mph SW 4%
Wednesday Night 50°F Mostly Clear 3 mph SSW 3%
Thursday 79°F Sunny 5 to 8 mph SSW 1%
Thursday Night 51°F Mostly Clear 2 to 6 mph S 3%
Friday 79°F Mostly Sunny 5 to 10 mph SW 1%

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

Growing snapshot for Camp Three, MT

Last spring frost
May 20
First fall frost
Sep 21
Growing season
124 days
Hardiness zone
4b

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

Climate data from the nearest NOAA station, Roundup, Mt (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.