Tracking Areas of Fire Weather, Severe Weather, and Winter Weather

Gusty winds and dry conditions will continue to bring fire weather concerns to the southern Plains through Friday. Severe thunderstorms including a few tornadoes, large hail and damaging wind gusts are expected across parts of the Midwest and lower Ohio Valley today. A Pacific storm will bring low elevation rain and thunderstorms across southern California and heavy snow through the Sierra. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 20, 01:00 AM PST until February 20, 09:00 AM PST

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

52°F

11°C

Humidity	57%
Wind Speed	WNW 14 MPH
Barometer	29.83 in (1010.16 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	19 Feb 05:20 PM PST

More Information:

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

Extended Forecast for

Castro Valley CA

Cold Weather Advisory February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Tonight
Low: 36 °F
Clear then
Patchy Frost
Friday
High: 53 °F
Patchy Frost
then Partly
Sunny
Friday Night
Low: 38 °F
Partly Cloudy
Saturday
High: 59 °F
Mostly Sunny
Saturday Night
Low: 47 °F
Slight Chance
Rain
Sunday
High: 66 °F
Chance Rain
Sunday Night
Low: 51 °F
Chance Rain
Monday
High: 67 °F
Chance Rain
Monday Night
Low: 55 °F
Rain

Detailed Forecast

Tonight

Patchy frost after 4am. Otherwise, mostly clear, with a low around 36. West northwest wind 5 to 14 mph becoming northeast after midnight. Winds could gust as high as 28 mph.

Friday

Patchy frost before 8am. Otherwise, partly sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.

Friday Night

Partly cloudy, with a low around 38. East southeast wind 3 to 6 mph.

Saturday

Mostly sunny, with a high near 59. South wind 7 to 13 mph, with gusts as high as 22 mph.

Saturday Night

A 20 percent chance of rain after 10pm. Partly cloudy, with a low around 47. South southeast wind 11 to 13 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.

Sunday

A 40 percent chance of rain. Partly sunny, with a high near 66. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 30 percent chance of rain. Mostly cloudy, with a low around 51.

Monday

A chance of rain. Mostly cloudy, with a high near 67.

Monday Night

Rain, mainly after 10pm. Mostly cloudy, with a low around 55.

Tuesday

Rain. Cloudy, with a high near 62.

Tuesday Night

Rain likely. Cloudy, with a low around 52.