Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

43°F

6°C

Humidity 74%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 29 Dec 07:10 PM PST
Extended Forecast for

2 Miles S Cupertino CA

  • Tonight

    Tonight: Mostly clear, with a low around 39. West northwest wind 3 to 7 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 60. Calm wind becoming north northeast around 5 mph.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am.  Cloudy, with a high near 57. North northeast wind 3 to 5 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 49. East wind 3 to 5 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • New Year's Day

    New Year's Day: Rain.  High near 59. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Rain

  • Friday

    Friday: Rain.  Cloudy, with a high near 59.

    High: 59 °F

    Rain

  • Friday Night

    Friday Night: Rain.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 39. West northwest wind 3 to 7 mph.
Tuesday
Partly sunny, with a high near 60. Calm wind becoming north northeast around 5 mph.
Tuesday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 46. Light and variable wind.
Wednesday
Rain likely, mainly after 10am. Cloudy, with a high near 57. North northeast wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 49. East wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 59. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 52. Chance of precipitation is 80%.
Friday
Rain. Cloudy, with a high near 59.
Friday Night
Rain. Mostly cloudy, with a low around 46.
Saturday
Rain likely. Mostly cloudy, with a high near 56.
Saturday Night
Rain likely. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Partly sunny, with a high near 57.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 46.
Monday
A chance of rain. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Cupertino CA
 37.28°N 122.06°W (Elev. 666 ft)
12:27 pm PST Dec 29, 2025
7pm PST Dec 29, 2025-6pm PST Jan 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database