Active Spring Like Pattern Across the Eastern Half of the Country

The second storm will track across central and eastern portion of the country this weekend. Heavy wintry precipitation will affect the northern Plains to the upper peninsula of Michigan. Severe thunderstorms are expected along and ahead of the cold front, where very large hail, damaging winds and a few tornadoes are possible from the mid-Mississippi and Ohio Valleys to southern Plains. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

44°F

7°C

Humidity 43%
Wind Speed N 12 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 03 Apr 11:00 AM PDT
Extended Forecast for

4 Miles S Clayton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. North northeast wind 14 to 16 mph, with gusts as high as 21 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. North northeast wind 6 to 11 mph becoming light and variable  after midnight.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. North northwest wind around 6 mph becoming southwest after midnight.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 74. South wind around 6 mph becoming north in the afternoon.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Monday Night

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

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 61. North northeast wind 14 to 16 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 51. North northeast wind 6 to 11 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 70. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 58. North northwest wind around 6 mph becoming southwest after midnight.
Sunday
Sunny, with a high near 74. South wind around 6 mph becoming north in the afternoon.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A chance of rain. Partly sunny, with a high near 63.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Thursday
A slight chance of rain. Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
11:26 am PDT Apr 3, 2026
12pm PDT Apr 3, 2026-6pm PDT Apr 9, 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