Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083° N Lon: 122.11833° W Elev: 46.0 ft.

Overcast

62°F

17°C

Humidity	67%
Wind Speed	SSE 8 MPH
Barometer	29.6 in (1002.37 mb)
Dewpoint	51°F (11°C)
Visibility	10.00 mi
Last update	24 Dec 04:54 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

San Francisco Bay Shoreline

Tonight

Breezy. Showers and a slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Lows in the lower 50s. South winds 20 to 30 mph. Gusts up to 45 mph increasing to 60 mph after midnight.

Christmas Day

Very windy. Showers and a slight chance of thunderstorms. Some thunderstorms may be severe with heavy rainfall. Highs in the upper 50s. South winds 20 to 30 mph increasing to 30 to 45 mph in the afternoon.

Thursday Night

Breezy. Showers and a slight chance of thunderstorms in the evening, then showers likely after midnight. Some thunderstorms may be severe with heavy rainfall. Lows in the lower 50s. South winds 20 to 30 mph with gusts to around 45 mph decreasing to 10 to 20 mph with gusts to around 35 mph after midnight.

Friday

Showers. Highs in the upper 50s. South winds 10 to 20 mph.

Friday Night

Mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Some thunderstorms may produce heavy rainfall in the evening. Lows in the 40s. Southeast winds 5 to 15 mph. Chance of precipitation 50 percent.

Saturday

Mostly cloudy in the morning then becoming partly cloudy. A slight chance of showers. Highs in the mid 50s.

Saturday Night

Mostly clear. Lows near 40.

Sunday

Partly cloudy in the morning then becoming sunny. Highs in the mid 50s.

Sunday Night Through Tuesday

Mostly clear. Lows in the mid 30s to lower 40s. Highs in the upper 50s.

Tuesday Night

Mostly clear in the evening then becoming partly cloudy. Lows in the lower 40s.

Wednesday

Partly cloudy. A slight chance of showers. Highs in the upper 50s.