Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

51°F

11°C

Humidity 28%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 17 Apr 08:05 PM PDT
Extended Forecast for

2 Miles S Clayton CA

  • Today

    Today: Sunny, with a high near 76. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. West wind around 7 mph becoming south southwest in the evening.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 73. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 73 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. Southwest wind 7 to 13 mph, with gusts as high as 24 mph.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers.  Partly sunny, with a high near 71. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 71 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm.  Low around 53. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain.  Partly sunny, with a high near 64.

    High: 64 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 76. Light and variable wind becoming west around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 54. West wind around 7 mph becoming south southwest in the evening.
Sunday
Partly sunny, with a high near 73. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 51. Southwest wind 7 to 13 mph, with gusts as high as 24 mph.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 71. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm. Low around 53. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 62. Chance of precipitation is 90%.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 50.
Wednesday
A chance of rain. Partly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 70.
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)
1:41 am PDT Apr 18, 2026
7am PDT Apr 18, 2026-6pm PDT Apr 24, 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