Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

52°F

11°C

Humidity 62%
Wind Speed W 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Feb 03:00 PM PST
Extended Forecast for

Castro Valley CA

  • Tonight

    Tonight: Rain.  Low around 42. Southwest wind 7 to 14 mph becoming southeast after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain Likely
    then Rain

  • Thursday

    Thursday: Rain before 1pm, then a slight chance of rain after 4pm.  High near 52. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 34 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain then
    Slight Chance
    Rain and
    Breezy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm.  Mostly clear, with a low around 37. West northwest wind 6 to 11 mph becoming light  after midnight. Winds could gust as high as 26 mph.

    Low: 37 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 54. Light and variable wind.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. East southeast wind 3 to 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 4pm.  Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain, mainly after 10pm.  Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: Rain.  Mostly cloudy, with a high near 63.

    High: 63 °F

    Rain

  • Sunday Night

    Sunday Night: Rain.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Rain

Detailed Forecast

Tonight
Rain. Low around 42. Southwest wind 7 to 14 mph becoming southeast after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain before 1pm, then a slight chance of rain after 4pm. High near 52. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 20 percent chance of rain before 10pm. Mostly clear, with a low around 37. West northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 26 mph.
Friday
Partly sunny, with a high near 54. Light and variable wind.
Friday Night
Partly cloudy, with a low around 39. East southeast wind 3 to 5 mph.
Saturday
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 59.
Saturday Night
Rain, mainly after 10pm. Low around 49. Chance of precipitation is 80%.
Sunday
Rain. Mostly cloudy, with a high near 63.
Sunday Night
Rain. Mostly cloudy, with a low around 54.
Monday
Rain. Mostly cloudy, with a high near 65.
Monday Night
Rain. Mostly cloudy, with a low around 53.
Tuesday
Rain. Mostly cloudy, with a high near 63.
Tuesday Night
Rain. Mostly cloudy, with a low around 48.
Wednesday
Rain likely. Mostly cloudy, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.71°N 122.08°W (Elev. 397 ft)
2:31 pm PST Feb 18, 2026
3pm PST Feb 18, 2026-6pm PST Feb 25, 2026
 
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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