Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

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Last Map Update: Thu, Dec 11, 2025 at 5:52:32 am PST

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Dense Fog Advisory

Small Craft Advisory

Beach Hazards Statement

High Temperatures Today

Morning Fog

Foggy Valley Mornings Continue

Unsettled Weather Returns Next Week

A look at the forecast high temperatures for today, Thursday, December 11, 2025. Cool to seasonable high temperatures continue across NorCal today.

Morning fog is expected to develop across portions of the Valley and Delta over the next couple of days. If you're traveling, please slow down & use your low-beam headlights!

As the weather pattern remains steady over the next several days, additional chances for fog development are expected.

Fog and low clouds at low elevations and warm, dry weather at high elevations continues through the weekend, with a shift toward more unsettled weather, including rain showers and breezy winds, by next week.