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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

KL1SF-7 Grand Canyon (AR412)

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

NA

86°F

30°C

Humidity 20%
Wind Speed WNW 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 40°F (4°C)
Visibility NA
Heat Index83°F (28°C)
Last update 23 Aug 09:33 AM MST
Extended Forecast for

Grand Canyon AZ

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 11am. Increasing clouds, with a high near 91. Northeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 68. South wind 6 to 8 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 9 mph in the morning.

    High: 89 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Partly cloudy, with a low around 67. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 91. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 91 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. Southwest wind around 6 mph becoming calm after midnight.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69. Southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Light and variable wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 18 mph.

    High: 93 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 11am. Increasing clouds, with a high near 91. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 68. South wind 6 to 8 mph.
Monday
A 30 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 9 mph in the morning.
Monday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Partly cloudy, with a low around 67. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Tuesday
A 10 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 91. Calm wind becoming southeast 5 to 8 mph in the morning.
Tuesday Night
Mostly clear, with a low around 69. Southwest wind around 6 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 69. Southwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Sunny, with a high near 93. Light and variable wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Mostly clear, with a low around 70. West wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 16 mph.
Friday
Sunny, with a high near 93. Light southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 71. West wind 6 to 11 mph becoming light south after midnight. Winds could gust as high as 17 mph.
Saturday
Sunny, with a high near 94. Light southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Canyon AZ
 36.08°N 112.15°W (Elev. 4528 ft)
Last Update:
9:27 am MST Aug 23, 2026
Forecast Valid:
9am MST Aug 23, 2026-6pm MST Aug 29, 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