Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory until January 4, 02:00 PM PST

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46.0ft.

Overcast

52°F

11°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.82 in (1009.82 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Last update	01 Jan 07:00 AM PST

More Information:

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

Extended Forecast for

3 Miles SE Union City CA

Coastal Flood Advisory January 1, 07:28am until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory January 1, 07:28am until January 4, 02:00pm
NOW until 2:00pm Sun
Coastal Flood Advisory
New Year's Day
High: 61 °F
Showers
Tonight
Low: 50 °F
Showers
Likely then
Partly Cloudy
Friday
High: 60 °F
Slight Chance
Showers then
Showers
Likely
Friday Night
Low: 55 °F
Showers
Saturday
High: 60 °F
Showers
Saturday Night
Low: 53 °F
Showers
Sunday
High: 58 °F
Showers
Sunday Night
Low: 50 °F
Showers

Detailed Forecast

New Year's Day

Showers, with thunderstorms also possible after 10am. High near 61. South wind 7 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers likely before 10pm. Mostly cloudy, with a low around 50. South southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Showers likely, mainly after 4pm. Mostly cloudy, with a high near 60. South southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Friday Night

Showers. Low around 55. South southeast wind 15 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Showers. High near 60. South wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night

Showers, with thunderstorms also possible after 10pm. Low around 53. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers. High near 58. Chance of precipitation is 90%.

Sunday Night

Showers. Cloudy, with a low around 50.

Monday

Showers likely. Mostly cloudy, with a high near 56.

Monday Night

Showers likely, mainly before 10pm. Mostly cloudy, with a low around 44.

Tuesday

A chance of showers. Partly sunny, with a high near 56.

Tuesday Night

A slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 42.