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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

66°F

19°C

Humidity 35%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 15 May 02:10 PM PDT
Extended Forecast for

4 Miles E Walnut Creek CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. West wind around 10 mph, with gusts as high as 18 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 51. Southwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 51 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 79. West wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. West southwest wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. West southwest wind 8 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 84. West wind around 10 mph, with gusts as high as 18 mph.
Tonight
Clear, with a low around 51. Southwest wind around 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 79. West wind 11 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 48. West southwest wind 8 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 81. West southwest wind 8 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 87.
Monday Night
Clear, with a low around 51.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Clear, with a low around 53.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Clear, with a low around 53.
Thursday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Walnut Creek CA
 37.91°N 121.98°W (Elev. 400 ft)
Last Update:
1:26 pm PDT May 15, 2026
Forecast Valid:
2pm PDT May 15, 2026-6pm PDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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Chance of Precipitation