Fire Weather Concerns in the South-Central U.S.; Heavy Precipitation in Northern California and the Great Lakes

Strong winds and dry conditions will promote elevated to critical fire weather conditions across southeast Colorado into the southern Plains and extending into the Ozarks. An atmospheric river will bring heavy rain and a flash flood threat to northern California and heavy mountain snow in the Cascades and Northern Rockies. A clipper system will bring heavy snow to the Great Lakes. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

72°F

22°C

Humidity 49%
Wind Speed S 9 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Feb 01:15 PM PST
Extended Forecast for

Castro Valley CA

  • This Afternoon

    This Afternoon: Rain likely, mainly after 4pm.  Mostly cloudy, with a high near 67. South southwest wind around 10 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Rain Likely

  • Tonight

    Tonight: Rain, mainly before 9pm.  Low around 56. South wind 3 to 7 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 67. Calm wind becoming west around 6 mph in the afternoon.

    High: 67 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 72. Calm wind becoming north around 5 mph in the afternoon.

    High: 72 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 67. South southwest wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, mainly before 9pm. Low around 56. South wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, with a high near 67. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51. Light and variable wind.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 72.
Friday Night
Mostly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.71°N 122.08°W (Elev. 397 ft)
1:26 pm PST Feb 24, 2026
1pm PST Feb 24, 2026-6pm PST Mar 2, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database