Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

51°F

11°C

Humidity 32%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 31 Dec 12:00 AM PST
Extended Forecast for

15 Miles ENE Morgan Hill CA

Dense Fog Advisory December 31, 12:54am until December 31, 11:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 31, 12:54am until December 31, 11:00am

    NOW until 11:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 47 °F

    Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 10am.  Cloudy, with a high near 52. East wind 3 to 6 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 46. Light east wind.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • New Year's Day

    New Year's Day: Rain.  High near 56. South southeast wind 6 to 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before 4am.  Mostly cloudy, with a low around 50. South wind around 6 mph.  Chance of precipitation is 70%.

    Low: 50 °F

    Rain Likely

  • Friday

    Friday: Rain likely, mainly after 10am.  Mostly cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain.  Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Rain

  • Saturday

    Saturday: Rain.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Rain

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 47. Calm wind.
Wednesday
Rain likely, mainly after 10am. Cloudy, with a high near 52. East wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 46. Light east wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 56. South southeast wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 50. South wind around 6 mph. Chance of precipitation is 70%.
Friday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Friday Night
Rain. Low around 47. Chance of precipitation is 90%.
Saturday
Rain. Mostly cloudy, with a high near 54.
Saturday Night
Rain likely. Mostly cloudy, with a low around 44.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 54.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 42.
Monday
A chance of rain. Partly sunny, with a high near 53.
Monday Night
A chance of rain. Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ENE Morgan Hill CA
 37.23°N 121.38°W (Elev. 1339 ft)
12:01 am PST Dec 31, 2025
12am PST Dec 31, 2025-6pm PST Jan 6, 2026
 
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Additional Resources

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