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.

Overcast

50°F

10°C

Humidity 66%
Wind Speed S 8 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 18 Feb 04:35 PM PST
Extended Forecast for

Castro Valley CA

  • Tonight

    Tonight: Rain.  Low around 41. South southwest wind 8 to 14 mph becoming southeast after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain Likely
    then Rain

  • Thursday

    Thursday: Rain before 1pm, then a slight chance of rain after 4pm.  High near 50. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 36 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Breezy. Rain
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm.  Patchy frost after 5am.  Otherwise, mostly clear, with a low around 36. West northwest wind 6 to 11 mph becoming light west  after midnight. Winds could gust as high as 26 mph.

    Low: 36 °F

    Slight Chance
    Rain then
    Patchy Frost

  • Friday

    Friday: Patchy frost before 7am.  Otherwise, partly sunny, with a high near 53. Calm wind becoming southeast around 5 mph in the morning.

    High: 53 °F

    Patchy Frost
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. East southeast wind 3 to 6 mph.

    Low: 39 °F

    Partly Cloudy

  • Saturday

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

    High: 59 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely.  Mostly cloudy, with a high near 62.

    High: 62 °F

    Rain Likely

  • Sunday Night

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

    Low: 54 °F

    Rain

Detailed Forecast

Tonight
Rain. Low around 41. South southwest wind 8 to 14 mph becoming southeast after midnight. Winds could gust as high as 30 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 50. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 36 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. Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. West northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 26 mph.
Friday
Patchy frost before 7am. Otherwise, partly sunny, with a high near 53. Calm wind becoming southeast around 5 mph in the morning.
Friday Night
Partly cloudy, with a low around 39. East southeast wind 3 to 6 mph.
Saturday
A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 59.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 62.
Sunday Night
Rain. Mostly cloudy, with a low around 54.
Monday
Rain. Mostly cloudy, with a high near 64.
Monday Night
Rain. Mostly cloudy, with a low around 52.
Tuesday
Rain. Mostly cloudy, with a high near 62.
Tuesday Night
Rain. Mostly cloudy, with a low around 48.
Wednesday
Rain likely. Mostly cloudy, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
2:31 pm PST Feb 18, 2026
4pm 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