Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Merced / Castle Air Force Base (KMER)

Lat: 37.36667°NLon: 120.56667°WElev: 187.0ft.

Clear

N/A

Humidity NA
Wind Speed NW 8 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update NA
Extended Forecast for

7 Miles ESE Livingston CA

Heat Advisory August 4, 11:01am until August 5, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 4, 11:01am until August 5, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Today

    High: 104 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 64. Northwest wind 5 to 10 mph.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 102. Northwest wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64. Northwest wind around 10 mph.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102. Northwest wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 65. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 102. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Clear

Detailed Forecast

Today
Sunny and hot, with a high near 104. West northwest wind around 5 mph.
Tonight
Clear, with a low around 64. Northwest wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 102. Northwest wind 5 to 10 mph.
Wednesday Night
Clear, with a low around 64. Northwest wind around 10 mph.
Thursday
Sunny and hot, with a high near 102. Northwest wind 5 to 10 mph.
Thursday Night
Clear, with a low around 65. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Sunny and hot, with a high near 102. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Clear, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 104. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Mostly clear, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny and hot, with a high near 102. Northwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 63. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 98. West northwest wind around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ESE Livingston CA
 37.35°N 120.61°W (Elev. 167 ft)
10:56 am PDT Aug 4, 2026
11am PDT Aug 4, 2026-6pm PDT Aug 10, 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