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Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

49°F

9°C

Humidity 46%
Wind Speed NW 18 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 16 May 02:40 AM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Sunny, with a high near 65. West northwest wind around 16 mph, with gusts as high as 30 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. West northwest wind 13 to 15 mph, with gusts as high as 29 mph.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Breezy, with a north wind 14 to 22 mph, with gusts as high as 39 mph.

    High: 73 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 66. Breezy, with a north wind 21 to 24 mph, with gusts as high as 50 mph.

    Low: 66 °F

    Clear and
    Breezy

  • Monday

    Monday: Sunny, with a high near 78. Breezy, with a north wind 21 to 26 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 55 mph.

    High: 78 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 65. West northwest wind around 16 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 47. West northwest wind 13 to 15 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 73. Breezy, with a north wind 14 to 22 mph, with gusts as high as 39 mph.
Sunday Night
Clear, with a low around 66. Breezy, with a north wind 21 to 24 mph, with gusts as high as 50 mph.
Monday
Sunny, with a high near 78. Breezy, with a north wind 21 to 26 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 55 mph.
Monday Night
Clear, with a low around 59.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Clear, with a low around 64.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
1:26 am PDT May 16, 2026
Forecast Valid:
5am PDT May 16, 2026-6pm PDT May 22, 2026
 
Forecast Discussion
 
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