Fire Weather Issues; Pacific System Moving Inland

Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Click a location below for detailed forecast.

Last Map Update: Mon, Apr 20, 2026 at 4:30:24 am PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Winter Weather Advisory

Small Craft Advisory

Lake Wind Advisory

Winter Storm Watch

Rainfall Forecast: Today-Wednesday

Snowfall Forecast: Tuesday-Wednesday

Thunderstorm Chances

Storm Safety Tips

With periods of moderate to heavy snow possible Tuesday into Wednesday, a Winter Storm Watch is in effect from 2 am Tuesday, April 21 through 5 pm Wednesday, April 22, 2026 for Sierra/southern Cascades locations above 5000 feet.

Rain Forecast: Today - Wed. Moderate Impacts. Slick roads and thunderstorm chances. Snow levels 6000 to 7000 ft Monday, lowering to around 5000-6000 ft Tuesday, then 4500-5500 ft by Wednesday morning.

Snow Forecast: Tuesday - Wednesday. Moderate Impacts. Travel delays and slick roads. Chain controls. Reductions in visibilities at times. Snow levels 6000 to 7000 ft Today, lowering to around 5000 to 6000 ft Tuesday, then 4500 to 5500 feet by Wednesday morning.

Probability of Thunder: Tuesday. Chances generally 25 to 35% across interior NorCal.

Storm safety tips. Unclog gutters & storm drains. Check tires, wiper blades, fluids, & lights. Winterize your vehicle, have an emergency supply kit, & carry chains.