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

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

KL1SF-7 Grand Canyon (AR412)

Lat: 36.048°NLon: 112.1245°WElev: 6977.0ft.

NA

65°F

18°C

Humidity 39%
Wind Speed S 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 39°F (4°C)
Visibility NA
Last update 04 Aug 04:33 AM MST
Extended Forecast for

5 Miles SE Phantom Ranch AZ

Extreme Heat Warning August 4, 04:59am until August 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 4, 04:59am until August 5, 08:00pm

    NOW until 8:00pm Wed

    Extreme Heat Warning

  • Today

    High: 100 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. Southwest wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. West wind 7 to 11 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 99. West wind 5 to 8 mph.

    High: 99 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. West wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. West wind 3 to 8 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. Southwest wind 6 to 8 mph.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 100. West wind 10 to 14 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 73. Southwest wind 9 to 13 mph, with gusts as high as 18 mph.
Wednesday
Sunny and hot, with a high near 99. West wind 7 to 11 mph.
Wednesday Night
Mostly clear, with a low around 73. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 99. West wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 72. West wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Sunny and hot, with a high near 99. West wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 73. Southwest wind 6 to 8 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 100. West wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 73. Southwest wind around 8 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. West wind 6 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind 7 to 9 mph, with gusts as high as 15 mph.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 95. West wind 8 to 11 mph, with gusts as high as 16 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Phantom Ranch AZ
 36.04°N 112.03°W (Elev. 5069 ft)
Last Update:
3:12 am MST Aug 4, 2026
Forecast Valid:
4am MST Aug 4, 2026-6pm MST Aug 10, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation