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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

51°F

11°C

Humidity 63%
Wind Speed SSW 12 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 26 Dec 12:00 PM PST
Extended Forecast for

13 Miles ENE Morgan Hill CA

Flood Watch December 26, 01:03pm until December 26, 04:00pm
Wind Advisory December 26, 01:03pm until December 26, 06:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 26, 01:03pm until December 26, 04:00pm
    Wind Advisory December 26, 01:03pm until December 26, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 47 °F

    Rain Likely

  • Tonight

    Tonight: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 38. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain Likely
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Northwest wind 5 to 7 mph becoming north northeast in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. North northwest wind around 6 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 49. Northeast wind around 6 mph.

    High: 49 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 47. South southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 38. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 47. Northwest wind 5 to 7 mph becoming north northeast in the afternoon.
Saturday Night
Mostly clear, with a low around 32. North northwest wind around 6 mph.
Sunday
Sunny, with a high near 49. Northeast wind around 6 mph.
Sunday Night
Clear, with a low around 33.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 55.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 40.
New Year's Day
A chance of rain. Partly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ENE Morgan Hill CA
 37.22°N 121.44°W (Elev. 2402 ft)
Last Update:
11:36 am PST Dec 26, 2025
Forecast Valid:
1pm PST Dec 26, 2025-6pm PST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation