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Geyser, MT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Geyser, a community in Judith Basin County, Montana.

Today
64°F
Chance Light Rain
A chance of rain. Cloudy, with a high near 64. East northeast wind 3 to 8 mph. Chance of precipitation is 40%.

7-day forecast for Geyser

WhenTempForecastWindPrecip
Today 64°F Chance Light Rain 3 to 8 mph ENE 37%
Tonight 46°F Slight Chance Light Rain 2 to 7 mph SSE 20%
Sunday 69°F Mostly Sunny 2 to 7 mph ESE 5%
Sunday Night 45°F Mostly Clear 3 to 7 mph SSE 0%
Monday 76°F Sunny 6 mph SW 1%
Monday Night 49°F Mostly Clear 7 mph SW 0%
Tuesday 78°F Sunny 3 to 7 mph WSW 0%
Tuesday Night 51°F Mostly Clear 6 mph SW 0%
Wednesday 79°F Sunny 6 mph WSW 1%
Wednesday Night 51°F Mostly Clear 5 to 8 mph SW 3%
Thursday 80°F Sunny 7 mph WSW 3%
Thursday Night 52°F Mostly Clear 9 mph S 6%
Friday 78°F Mostly Sunny 9 mph SW 5%
Friday Night 47°F Slight Chance Light Rain then Partly Cloudy 8 mph WSW 17%

Forecast source: National Weather Service (api.weather.gov) for Geyser (47.263, -110.493). Updated through the day.

Growing snapshot for Geyser

Last spring frost
May 22
First fall frost
Sep 23
Growing season
123 days
Hardiness zone
4b

More local growing data for Geyser: nearby ZIP 59447 weather · frost dates · planting calendar · Montana frost dates

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Climate data from the nearest NOAA station, Raynesford 2 Nnw, Mt (13.9 mi from Geyser). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.