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

Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Mist

50°F

10°C

Humidity 100%
Wind Speed W 4 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Wind Chill49°F (9°C)
Last update 31 Dec 08:35 PM PST
Extended Forecast for

Sunnyvale CA

  • Tonight

    Tonight: Rain. Low around 51. East northeast wind 6 to 11 mph becoming southeast after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Rain

  • New Year's Day

    New Year's Day: Rain before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. High near 62. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Rain then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of rain before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 49. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 60. South wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Chance Rain
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain. Low around 54. Southeast wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Rain

  • Saturday

    Saturday: Rain before 10am, then showers and possibly a thunderstorm between 10am and 1pm, then rain after 1pm. High near 60. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.

    Low: 52 °F

    Showers

  • Sunday

    Sunday: Rain. Cloudy, with a high near 57.

    High: 57 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain

Detailed Forecast

Tonight
Rain. Low around 51. East northeast wind 6 to 11 mph becoming southeast after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
New Year's Day
Rain before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. High near 62. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of rain before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 49. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 60. South wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain. Low around 54. Southeast wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain before 10am, then showers and possibly a thunderstorm between 10am and 1pm, then rain after 1pm. High near 60. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.
Sunday
Rain. Cloudy, with a high near 57.
Sunday Night
Rain. Mostly cloudy, with a low around 48.
Monday
Rain likely. Mostly cloudy, with a high near 56.
Monday Night
Rain likely. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Partly sunny, with a high near 57.
Tuesday Night
A chance of rain. Partly cloudy, with a low around 44.
Wednesday
A chance of rain. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Sunnyvale CA
 37.4°N 122.03°W (Elev. 46 ft)
Last Update:
2:14 pm PST Dec 31, 2025
Forecast Valid:
8pm PST Dec 31, 2025-6pm PST Jan 7, 2026
 
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Additional Resources

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