Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Current conditions at

LAS TRAMPAS (LTRC1)

Lat: 37.83389°NLon: 122.06694°WElev: 1760.0ft.

NA

88°F

31°C

Humidity 35%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Heat Index87°F (31°C)
Last update 09 Aug 11:28 AM PDT
Extended Forecast for

Walnut Creek CA

Heat Advisory August 9, 12:40pm until August 9, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 9, 12:40pm until August 9, 10:00pm

    NOW until 10:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 102 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 61. South southwest wind 6 to 8 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. West southwest wind 5 to 8 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 102. West southwest wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 61. South southwest wind 6 to 8 mph.
Monday
Sunny, with a high near 90. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 60. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 89. West southwest wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.9°N 122.04°W (Elev. 220 ft)
11:27 am PDT Aug 9, 2026
12pm PDT Aug 9, 2026-6pm PDT Aug 15, 2026
 
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