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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose, San Jose International Airport (KSJC)

Lat: 37.35917°NLon: 121.92417°WElev: 59.0ft.

Mostly Cloudy

61°F

16°C

Humidity 72%
Wind Speed SSE 12 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 01 Jan 03:35 PM PST
Extended Forecast for

4 Miles NNE Milpitas CA

Wind Advisory January 2, 01:00pm until January 3, 01:00pm
Click here for hazard details and duration
Wind Advisory

  • New Year's Day

    New Year's Day: A slight chance of showers and thunderstorms before 4pm, then a slight chance of thunderstorms between 4pm and 5pm, then a slight chance of rain and thunderstorms after 5pm. Mostly cloudy, with a high near 54. South wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of rain before 10pm. Mostly cloudy, with a steady temperature around 51. South southeast wind 15 to 17 mph, with gusts as high as 28 mph.

    Low: 51 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Rain likely after 4pm. Increasing clouds, with a high near 56. South wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Partly Sunny
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain. Low around 52. Breezy, with a south southeast wind 26 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Rain and
    Breezy

  • Saturday

    Saturday: Rain. High near 54. Breezy, with a south wind 21 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain. Low around 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: Rain. High near 53. Chance of precipitation is 100%.

    High: 53 °F

    Rain

  • Sunday Night

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

    Low: 46 °F

    Rain Likely

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain Likely

Detailed Forecast

New Year's Day
A slight chance of showers and thunderstorms before 4pm, then a slight chance of thunderstorms between 4pm and 5pm, then a slight chance of rain and thunderstorms after 5pm. Mostly cloudy, with a high near 54. South wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of rain before 10pm. Mostly cloudy, with a steady temperature around 51. South southeast wind 15 to 17 mph, with gusts as high as 28 mph.
Friday
Rain likely after 4pm. Increasing clouds, with a high near 56. South wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain. Low around 52. Breezy, with a south southeast wind 26 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain. High near 54. Breezy, with a south wind 21 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Low around 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 53. Chance of precipitation is 100%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46.
Monday
Rain likely. Mostly cloudy, with a high near 49.
Monday Night
A chance of rain, mainly before 4am. Mostly cloudy, with a low around 43.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
A slight chance of rain. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain. Partly cloudy, with a low around 41.
Thursday
A slight chance of rain. Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Milpitas CA
 37.49°N 121.88°W (Elev. 1801 ft)
Last Update:
12:32 pm PST Jan 1, 2026
Forecast Valid:
3pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation