Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

57°F

14°C

Humidity 29%
Wind Speed S 11 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 30 Mar 11:20 PM PDT
Extended Forecast for

2 Miles S Clayton CA

  • Overnight

    Overnight: A 30 percent chance of rain.  Mostly cloudy, with a low around 56. Southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Chance Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain, mainly after 5pm.  Mostly cloudy, with a high near 67. South southwest wind 8 to 10 mph, with gusts as high as 21 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 2am, then a slight chance of rain after 4am.  Partly cloudy, with a low around 53. Southwest wind 7 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Partly sunny, with a high near 66. South southwest wind 8 to 15 mph, with gusts as high as 29 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely.  Mostly cloudy, with a low around 49. West southwest wind 13 to 16 mph, with gusts as high as 29 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before 11am.  Sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of rain. Mostly cloudy, with a low around 56. Southwest wind around 9 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 67. South southwest wind 8 to 10 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of rain before 2am, then a slight chance of rain after 4am. Partly cloudy, with a low around 53. Southwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 66. South southwest wind 8 to 15 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 49. West southwest wind 13 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 20 percent chance of rain before 11am. Sunny, with a high near 65.
Thursday Night
Clear, with a low around 49.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Sunny, with a high near 78.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
1:26 am PDT Mar 31, 2026
5am PDT Mar 31, 2026-6pm PDT Apr 6, 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