Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Overcast

52°F

11°C

Humidity	87%
Wind Speed	SSE 8 MPH
Barometer	29.81 in (1009.48 mb)
Dewpoint	48°F (9°C)
Visibility	9.00 mi
Last update	12 Apr 05:05 AM PDT

More Information:

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

Extended Forecast for

Castro Valley CA

Overnight
Low: 48 °F
Chance
Showers
Sunday
High: 59 °F
Showers
Sunday Night
Low: 47 °F
Chance
Showers then
Partly Cloudy
Monday
High: 64 °F
Mostly Sunny
Monday Night
Low: 47 °F
Mostly Clear
Tuesday
High: 65 °F
Mostly Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 65 °F
Mostly Sunny
Wednesday Night
Low: 49 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 48. South southwest wind around 11 mph, with gusts as high as 23 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 59. West southwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 40 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 47. West southwest wind 5 to 9 mph becoming light south southwest after midnight. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 64. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 47. West southwest wind 5 to 9 mph.

Tuesday

Mostly sunny, with a high near 65.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Mostly sunny, with a high near 65.

Wednesday Night

Mostly cloudy, with a low around 49.