Wind and Rain in the Northeast; Atmospheric River to Impact the West

A cold front will cross the Great Lakes and Northeast U.S. through today with gusty winds and areas of rain showers. A strong atmospheric river is then expected to move into the Northwest by midweek bringing a threat for moderate to heavy rainfall and flooding, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

65°F

18°C

Humidity 67%
Wind Speed ENE 2 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 03 Nov 11:10 AM PST
Extended Forecast for

Cupertino CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 72. North wind around 6 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Calm wind becoming south around 6 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Rain, mainly after 4am.  Low around 55. South wind 8 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Slight Chance
    Rain then
    Rain

  • Wednesday

    Wednesday: Rain, mainly before 4pm.  High near 65. South wind around 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain before 10pm.  Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 52. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance Rain
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 69.

    High: 69 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 72.

    High: 72 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 72. North wind around 6 mph.
Tonight
Mostly clear, with a low around 51. Calm wind.
Tuesday
Mostly sunny, with a high near 73. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Rain, mainly after 4am. Low around 55. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly before 4pm. High near 65. South wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of rain before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 52. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72.
Friday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 53.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 74.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 55.
Sunday
A chance of rain. Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
4:21 am PST Nov 3, 2025
12pm PST Nov 3, 2025-6pm PST Nov 9, 2025
 
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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