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Fromberg, MT Weather & Growing Conditions

Today
56°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 56. North northwest wind 10 to 15 mph. Chance of precipitation is 90%.

7-day forecast

WhenTempForecastWindPrecip
Today 56°F Showers And Thunderstorms 10 to 15 mph NNW 94%
Tonight 46°F Patchy Fog 7 to 15 mph NW 93%
Sunday 59°F Rain Showers 7 mph NNW 76%
Sunday Night 45°F Slight Chance Rain Showers then Mostly Cloudy 6 mph SSE 15%
Monday 69°F Sunny 3 to 10 mph S 0%
Monday Night 48°F Mostly Clear 5 to 8 mph SSE 0%
Tuesday 74°F Sunny 5 to 9 mph SSW 0%
Tuesday Night 49°F Partly Cloudy 6 mph SSE 2%
Wednesday 75°F Mostly Sunny 7 mph SSW 5%
Wednesday Night 51°F Partly Cloudy 3 to 12 mph SSE 3%
Thursday 77°F Sunny 10 to 14 mph S 0%
Thursday Night 52°F Mostly Clear 6 to 12 mph SSE 1%
Friday 77°F Mostly Sunny 12 to 16 mph S 2%
Friday Night 50°F Partly Cloudy 8 to 14 mph S 10%

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

Growing snapshot for Fromberg, MT

Last spring frost
May 14
First fall frost
Sep 24
Growing season
129 days
Hardiness zone
5a

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

Climate data from the nearest NOAA station, Bridger 2 N, Mt (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.