National Weather Service United States Department of Commerce

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Great Falls, MT

Weather Forecast Office

NWS Forecast Office Great Falls, MT

Weather.gov > Great Falls, MT
Click a location below for detailed forecast.

Last Map Update: Thu, Nov 13, 2025 at 12:24:15 am MST

Outlook Through Monday
Low-End Wind Gust Scenario Thurs Night - Friday
High-End Wind Gust Scenario Thurs Night - Friday
Mild temperatures persist through the day Thursday head of a period of breezy winds late Thursday into Friday. Although periods of mainly mountain precipitation accompanies the system Thursday night into Friday, amounts are looking light at this time. Additional cooling is becoming favored heading into early next week.
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Gusty winds return late Thursday into Friday across the region. This map gives a low-end max wind gust forecast. The probability for a stronger gust at each location is 75%
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This map shows the 75th percentile max wind gust, or the reasonable high end scenario, for Thursday night into Friday. This means there is a 25% chance that the max wind gust for each location is higher than the given amount.
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