Weather in Acton, MT
Updated 2026-09-26 08:00 local time · ZIP codes 59002
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
55°2% rain57°1% rain59°1% rain62°1% rain64°1% rain
66°2% rain68°2% rain
69°9% rain69°3% rain
69°5% rain67°10% rain64°10% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 10%).
It feels like 51°F with winds near 2 mph.
69°F, 3% rain chance and 8 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 55°F, wind 2 mph, rain chance up to 10%.
UV index is 0.
Local weather characteristics in Acton
Montana weather varies from relatively dry plains to snowy mountain climates. Cold fronts, strong winds and large day-to-day temperature swings are common.
Acton is part of the West weather region. The forecast point is near 45.93°N latitude and 108.68°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Acton weather today
Sunny and 55°F in Acton, MT. Today's high is 69°F with a 4% rain chance. Winds are around 2 mph with gusts near 7 mph. Relative humidity is 48%, pressure is 29.91 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Acton
Sunrise is at 07:06 AM and sunset is at 07:05 PM. Tomorrow's forecast calls for Overcast with a high near 65°F and a low near 50°F. The maximum rain chance is 10%.