Major Winter Storm to Impact the Mid-Atlantic and Northeast; Inclement Weather in the Pacific Northwest

A major winter storm is expected to bring heavy snow, strong winds, and coastal flooding across the Mid-Atlantic and Northeast that may cause impossible travel conditions and power outages. Blizzard conditions are possible along coastal areas from the DelMarVa Peninsula through southeastern New England. Wet weather and strong winds return to the Pacific Northwest and north-central California. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

38°F

3°C

Humidity 85%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 21 Feb 04:10 AM PST
Extended Forecast for

Cupertino CA

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Light and variable wind.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain, mainly after 10am.  High near 64. South wind 6 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 4am.  Patchy fog after 4am. Low around 54. South wind 3 to 6 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Patchy fog before 10am.  Otherwise, partly sunny, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. Light and variable wind.
Monday
Mostly sunny, with a high near 68. Light and variable wind.
Monday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 52. Light and variable wind.
Tuesday
Rain, mainly after 10am. High near 64. South wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain, mainly before 4am. Patchy fog after 4am. Low around 54. South wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 20 percent chance of rain before 10am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 71.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 70.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
12:26 pm PST Feb 22, 2026
5pm PST Feb 22, 2026-6pm PST Mar 1, 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