Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Click a location below for detailed forecast.

Last Map Update: Mon, Dec 8, 2025 at 4:02:53 am PST

Watches, Warnings & Advisories

National Weather Service Medford, OR

National Weather Service Eureka, CA

Zoom Out

National Weather Service Reno, NV

National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Dense Fog Advisory

Small Craft Advisory

Forecast on Repeat

Driving In Fog

A look at the forecast for the next few days across interior NorCal. Patchy AM Valley fog, but otherwise dry and near normal temperatures prevail.

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!

Text Product Selector (Selected product opens in current window)

Social Media Feeds

Social Media Feeds

Sacramento Radar

Sacramento Radar

Beale Radar

Beale Radar

Satellite

Graphical Forecasts - Local

Graphical Forecasts - Local

Graphical Forecasts - U.S.

Graphical Forecasts - U.S.

Forecast Weather Tables

Forecast Weather Tables

Recent STO Temperatures

Recent STO Temperatures

California Fire Weather Page

California Fire Weather Page

Caltrans Traffic Map

Caltrans QuickMap

Heat Risk Link

Experimental Smoke Forecast

Experimental Smoke Forecast

Follow us on Facebook

Follow us on YouTube