National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged, Intense Heat Wave; Excessive Rainfall in the Southern Rockies; Severe Weather in the Central US

Extremely dangerous heat will persist from the Midwest to the East Coast into late this week. Monsoonal moisture may produce excessive rain and considerable flash flooding and debris flows, especially near recent burn scar areas in New Mexico and west Texas. Severe storms are possible from the southern/central Plains into the Great Lakes and Northeast, and the northern/central Plains today. Read More >

Current conditions at

Mount Diablo Summit Museum and Trailhead Rooftop (SJS02)

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

NA

66°F

19°C

Humidity 17%
Wind Speed WSW 12 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 24 Jun 05:35 AM PDT
Extended Forecast for

4 Miles S Clayton CA

  • Today

    Today: Sunny, with a high near 70. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58. Southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 75. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 70. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 60. Southwest wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 74. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 58. Southwest wind around 10 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 75. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Thursday Night
Clear, with a low around 59.
Friday
Sunny, with a high near 77.
Friday Night
Clear, with a low around 60.
Saturday
Sunny, with a high near 80.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 78.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
5:23 am PDT Jun 24, 2025
Forecast Valid:
5am PDT Jun 24, 2025-6pm PDT Jun 30, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation