National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

59°F

15°C

Humidity 67%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 02 Jan 10:10 AM PST
Extended Forecast for

Cupertino CA

  • Today

    Today: Rain, mainly after 4pm. High near 59. Southeast wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain

  • Tonight

    Tonight: Rain. Low around 52. South wind 11 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Rain

  • Saturday

    Saturday: Rain. High near 59. South wind 9 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 50. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Rain

  • Sunday

    Sunday: Rain before 1pm, then showers and possibly a thunderstorm after 1pm. High near 57. South southwest wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain Likely

  • Monday

    Monday: Rain likely. Cloudy, with a high near 55. Chance of precipitation is 70%.

    High: 55 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

  • Tuesday

    Tuesday: A slight chance of rain before 10am. Partly sunny, with a high near 58.

    High: 58 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
Rain, mainly after 4pm. High near 59. Southeast wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain. Low around 52. South wind 11 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Rain. High near 59. South wind 9 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Low around 50. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain before 1pm, then showers and possibly a thunderstorm after 1pm. High near 57. South southwest wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely. Cloudy, with a high near 55. Chance of precipitation is 70%.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Tuesday
A slight chance of rain before 10am. Partly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 39.
Thursday
A slight chance of rain. Sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
Last Update:
5:47 am PST Jan 2, 2026
Forecast Valid:
11am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
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Additional Resources

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Chance of Precipitation