Major Winter Storm to Impact the Mid-Atlantic and Northeast; Inclement Weather in the Pacific Northwest

A major winter storm is expected to bring heavy snow, strong winds, and coastal flooding across the Mid-Atlantic and Northeast that may cause impossible travel conditions and power outages. Blizzard conditions are possible along coastal areas from the DelMarVa Peninsula through southeastern New England. Wet weather and strong winds return to the Pacific Northwest and north-central California. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

28°F

-2°C

Humidity 99%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 20 Feb 03:25 AM PST
Extended Forecast for

4 Miles ENE Danville CA

  • Today

    Today: Mostly sunny, with a high near 64. Southeast wind 5 to 7 mph becoming light and variable  in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain after 10pm.  Mostly cloudy, with a low around 51. South wind 3 to 5 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  High near 63. South wind around 7 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 4am.  Low around 52. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly before 10am.  Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 10pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. Southeast wind 5 to 7 mph becoming light and variable in the afternoon.
Tonight
Partly cloudy, with a low around 42. Calm wind.
Monday
Mostly sunny, with a high near 67. Calm wind.
Monday Night
A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 51. South wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 63. South wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain, mainly before 4am. Low around 52. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 65.
Wednesday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 68.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Danville CA
 37.85°N 121.94°W (Elev. 1362 ft)
12:26 am PST Feb 22, 2026
7am PST Feb 22, 2026-6pm PST Feb 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database