National Weather Service United States Department of Commerce
Click a location below for detailed forecast.

Last Map Update: Tue, Feb. 20, 2018 at 11:15:12 pm PST

National Weather Service San Francisco Bay Area, CANational Weather Service San Joaquin Valley, CANational Weather Service Las Vegas, NV
National Weather Service Honolulu, HIZoom

National Weather Service NWS Phoenix
National Weather Service Honolulu, HINational Weather Service San Diego, CANational Weather Service San Diego, CA

An unseasonably cold air mass will bring widespread frost and freeze conditions across Southwest California late tonight and Wednesday morning. Very cold temperatures between 18 and 28 degrees will be possible across the Antelope Valley and San Luis Obispo Interior Valleys, however those locations have already had 2 or more hard freeze episodes this season. A hard freeze will be likely across the Cuyama Valley, Santa Ynez Valley, Central Coast, and Ojai Valley where temperatures could fall into the mid 20s in coldest locations. Wind sheltered portions of the Los Angeles and Ventura County valleys and Ventura County coast could see temperatures in the 30 to 32 degree range. Areas where temperatures fall below 28 degrees can kill plants and crops, although possible damage can also occur where temperatures fall to 28 to 32 degrees. People and pets can suffer from hypothermia due to prolonged exposure to freezing temperatures.


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