Geyser, MT Weather & Growing Conditions
Tonight
32°F
Partly Cloudy
Partly cloudy, with a low around 32. West southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Partly Cloudy | 5 mph WSW | 0% |
| Wednesday | 49°F | Mostly Sunny | 1 to 6 mph W | 0% |
| Wednesday Night | 32°F | Mostly Clear | 1 to 7 mph SW | 0% |
| Thursday | 55°F | Sunny | 7 to 13 mph WSW | 1% |
| Thursday Night | 33°F | Mostly Clear | 9 to 18 mph WSW | 1% |
| Friday | 53°F | Sunny | 14 to 23 mph WSW | 2% |
| Friday Night | 36°F | Partly Cloudy | 21 to 30 mph WSW | 7% |
| Saturday | 52°F | Mostly Sunny | 8 to 24 mph WSW | 1% |
| Saturday Night | 38°F | Partly Cloudy | 8 to 12 mph SW | 0% |
| Sunday | 62°F | Mostly Sunny | 10 to 15 mph WSW | 1% |
| Sunday Night | 39°F | Partly Cloudy | 8 to 14 mph WSW | 1% |
| Monday | 55°F | Partly Sunny | 3 to 8 mph WSW | 1% |
| Monday Night | 39°F | Mostly Cloudy | 3 to 10 mph SW | 1% |
| Tuesday | 58°F | Mostly Sunny | 8 to 14 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Geyser, MT
Last spring frost
May 22
First fall frost
Sep 23
Growing season
123 days
Hardiness zone
4b
Explore more for Geyser, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Raynesford 2 Nnw, Mt (13.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.