Weather in Fallon, MT
Updated 2026-09-26 09:45 local time · ZIP codes 59326
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
56°1% rain61°1% rain63°0% rain65°0% rain66°0% rain66°0% rain66°1% rain65°1% rain
63°7% rain
68°5% rain
68°9% rain67°6% 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 9%).
It feels like 44°F with winds near 16 mph.
66°F, 0% rain chance and 12 mph wind.
Visibility is around 6 mi; gusts may reach 26 mph.
Current temperature is 56°F, wind 16 mph, rain chance up to 9%.
UV index is 1.
Local weather characteristics in Fallon
Montana weather varies from relatively dry plains to snowy mountain climates. Cold fronts, strong winds and large day-to-day temperature swings are common.
Fallon is part of the West weather region. The forecast point is near 46.84°N latitude and 105.12°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.
Fallon weather today
Sunny and 56°F in Fallon, MT. Today's high is 68°F with a 2% rain chance. Winds are around 16 mph with gusts near 26 mph. Relative humidity is 35%, pressure is 29.85 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Fallon
Sunrise is at 06:52 AM and sunset is at 06:50 PM. Tomorrow's forecast calls for Overcast with a high near 69°F and a low near 52°F. The maximum rain chance is 8%.