Tracking Areas of Winter Weather and Heavy Rainfall

A cold front will move through the Great Lakes and Northeast U.S. today, bringing areas of snow and snow squalls which can bring rapid reductions to visibility and slick roads. A storm system will shift from the northern Gulf Coast through the Southeast U.S. today through Friday with areas of heavy to excessive rainfall and light snow further north. Heavy snow is also expected in the Rockies. Read More >

Click a location below for detailed forecast.

Last Map Update: Thu, Dec 4, 2025 at 11:28:34 am PST

Watches, Warnings & Advisories

National Weather Service Medford, OR

National Weather Service Eureka, CA

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National Weather Service Reno, NV

National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Coastal Flood Advisory

Small Craft Advisory

High Temperatures Today

Patchy Fog In the Valley

Low Visibilities Friday Morning

A look at the forecast high temperatures for today, Thursday December 4, 2025. 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!

A look at the forecast visibilities for Friday morning. Patchy fog, dense in low lying areas, is likely to develop tomorrow and through the weekend.

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