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Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain, and heavy mountain snow. Read More >

Hazardous Weather Conditions

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Rain

50°F

10°C

Humidity 68%
Wind Speed W 13 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 17 Feb 12:54 AM PST
Extended Forecast for

Castro Valley CA

Coastal Flood Advisory February 17, 01:06am until February 17, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory February 17, 01:06am until February 17, 03:00pm

    NOW until 3:00pm Tue

    Coastal Flood Advisory

  • Overnight

    Low: 43 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 51. Breezy, with a south southwest wind 18 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 10pm, then a chance of rain after 10pm. Low around 38. West northwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 38 °F

    Showers then
    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 52. West southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 42. South southeast wind 6 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Thursday

    Thursday: Rain. High near 52. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • Friday

    Friday: A chance of rain. Partly sunny, with a high near 55.

    High: 55 °F

    Chance Rain

Detailed Forecast

Overnight
Rain likely, mainly after 5am. Mostly cloudy, with a low around 43. West southwest wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 51. Breezy, with a south southwest wind 18 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 10pm, then a chance of rain after 10pm. Low around 38. West northwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 52. West southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 42. South southeast wind 6 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. High near 52. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain. Partly sunny, with a high near 55.
Friday Night
A chance of rain. Mostly cloudy, with a low around 40.
Saturday
A chance of rain. Partly sunny, with a high near 58.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46.
Sunday
Rain. Mostly cloudy, with a high near 62.
Sunday Night
Rain. Cloudy, with a low around 50.
Monday
Rain. Cloudy, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
Last Update:
12:27 am PST Feb 17, 2026
Forecast Valid:
1am PST Feb 17, 2026-6pm PST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation