Weather in Eureka, MT
Updated 2026-09-26 09:00 local time · ZIP codes 59917
Partly Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
38°18% rain
41°15% rain43°15% rain44°14% rain44°14% rain45°13% rain46°11% rain47°9% rain
47°7% rain47°8% rain
44°3% rain
39°5% 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 18%).
It feels like 33°F with winds near 7 mph.
47°F, 7% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 12 mph.
Current temperature is 38°F, wind 7 mph, rain chance up to 18%.
UV index is 0.
Local weather characteristics in Eureka
Montana weather varies from relatively dry plains to snowy mountain climates. Cold fronts, strong winds and large day-to-day temperature swings are common.
Eureka is part of the West weather region. The forecast point is near 48.88°N latitude and 115.05°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.
Eureka weather today
Partly Cloudy and 38°F in Eureka, MT. Today's high is 47°F with a 36% rain chance. Winds are around 7 mph with gusts near 12 mph. Relative humidity is 84%, pressure is 30.03 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Eureka
Sunrise is at 07:32 AM and sunset is at 07:30 PM. Tomorrow's forecast calls for Sunny with a high near 53°F and a low near 32°F. The maximum rain chance is 7%.