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Seattle weather: Pockets of lowland snow, wintry mix overnight

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Published  December 26, 2025 8:13pm PST
Weather
FOX 13 Seattle
Seattle weather: Cooler, drier weekend ahead

Seattle weather: Cooler, drier weekend ahead

FOX 13 meteorologist Ilona McCauley has the latest forecast

The Brief

    • Heavy snow is continuing overnight in the mountain passes, with 6–12 inches possible at Stevens and Snoqualmie Pass and rapidly changing road conditions.
    • Colder air moving in Friday night could bring pockets of lowland snow or a wintry mix, though most areas near I-5 are seeing mainly rain so far.
    • A Cold Weather Advisory takes effect early Saturday in western Whatcom County, with dangerous wind chills as low as 12 degrees and icy spots likely by morning.

SEATTLE - Snow continues to fall overnight in the passes. The convergence zone will remain active with higher totals along Stevens and Snoqualmie Pass. Snow accumulations may range between 6-12". Road conditions are changing quickly, so be sure to monitor pass conditions before heading out. 

Snow in the mountains overnight.

Moderate to heavy snow with totals 6-12".

A push of colder air moves into western Washington Friday night. While some moisture is still left, there is a possibility of pockets of lowland snow and a wintry mix. As of Friday evening, we've gotten a few reports of 1-2 inches of snow accumulation from around Sultan eastward along the US 2 corridor, with higher amounts east of Gold Bar and closer to Index. The snow accumulations at the lower elevations in this stretch have been driven by the precipitation rates as the convergence zone moves through. Closer to the I-5 corridor, it was mostly just rain with some snow mixed in.

Convergence zone sets up into the night.

Rain and snow falling around the region with a chance of lowland snow in the foothills.

The Fraser outflow will ramp up tonight, pushing in cold air into western Whatcom County. A Cold Weather Advisory will go into effect from around 1 a.m. to noon on Saturday with wind chill readings between 12–20 degrees. Please be sure to protect your pets and people as this cold can be dangerous. 

Cold night in Whatcom County.

Cold air spills into Whatcom County tonight with wind chills in the teens.

Friday night will be one of the colder nights we have seen so far this winter. Temperatures will be near freezing. Be sure to watch for some icy spots by Saturday morning on bridges and overpasses. 

Forecast lows around Western Washington.

Chilly overnight and Saturday morning nearing freezing.  (FOX13 Seattle)

A drier weekend is ahead with chilly nights and foggy mornings. It will be a quieter end of the year with a few showers returning by New Year's Day. 

The extended forecast for the Seattle Metro area.

Chilly mornings with fog. Drier to end the year.

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The Source: Information in this story came from FOX 13 Seattle Meteorologist Ilona McCauley and the National Weather Service.

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