Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Current conditions at

San Jose, San Jose International Airport (KSJC)

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

haze

54°F

12°C

Humidity 66%
Wind Speed NW 5 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 43°F (6°C)
Visibility 6.00 mi
Last update 15 Dec 02:00 PM PST
Extended Forecast for

San Jose International Airport CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 54. Northwest wind around 6 mph.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy dense fog after 4am.  Otherwise, increasing clouds, with a low around 49. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 49 °F

    Mostly Clear
    then Patchy
    Dense Fog

  • Tuesday

    Tuesday: Widespread dense fog, mainly before 8am.  Otherwise, mostly cloudy, with a high near 65. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 65 °F

    Dense Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain after 10pm.  Patchy fog before 10pm, then patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 55. Light and variable wind.

    Low: 55 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A 40 percent chance of rain before 10am.  Patchy fog before noon.  Otherwise, mostly cloudy, with a high near 65. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 65 °F

    Chance Rain
    and Patchy
    Fog then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 49.

    Low: 49 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 10am.  Otherwise, partly sunny, with a high near 63.

    High: 63 °F

    Areas Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain after 10pm.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Friday

    Friday: A chance of rain, mainly after 10am.  Cloudy, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 54. Northwest wind around 6 mph.
Tonight
Patchy dense fog after 4am. Otherwise, increasing clouds, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Widespread dense fog, mainly before 8am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
A 40 percent chance of rain after 10pm. Patchy fog before 10pm, then patchy fog after 1am. Otherwise, mostly cloudy, with a low around 55. Light and variable wind.
Wednesday
A 40 percent chance of rain before 10am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 49.
Thursday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 63.
Thursday Night
A slight chance of rain after 10pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 51.
Friday
A chance of rain, mainly after 10am. Cloudy, with a high near 62.
Friday Night
Rain likely. Cloudy, with a low around 53.
Saturday
A chance of rain. Mostly cloudy, with a high near 62.
Saturday Night
Rain likely. Mostly cloudy, with a low around 50.
Sunday
Rain likely. Cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
San Jose International Airport CA
 37.35°N 121.93°W (Elev. 66 ft)
12:27 pm PST Dec 15, 2025
2pm PST Dec 15, 2025-6pm PST Dec 21, 2025
 
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Additional Resources

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Hourly Weather Forecast

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