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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. Read More >

Current conditions at

KL1SF-7 Grand Canyon (AR412)

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

NA

62°F

17°C

Humidity 49%
Wind Speed SSW 0 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 03 Sep 05:53 AM MST
Extended Forecast for

Grand Canyon AZ

  • Today

    Today: A 40 percent chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 80. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 78 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 48. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 75. West wind around 8 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Partly cloudy, with a low around 48. West wind around 7 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 75. West wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 75 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 46. Southwest wind around 8 mph.

    Low: 46 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. West wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 77 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 80. Calm wind becoming southwest 5 to 8 mph in the morning.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 48. Light and variable wind.
Thursday
A 50 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Thursday Night
A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 48. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 75. West wind around 8 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Partly cloudy, with a low around 48. West wind around 7 mph. Chance of precipitation is 30%.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 75. West wind 6 to 9 mph, with gusts as high as 15 mph.
Saturday Night
A 10 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 46. Southwest wind around 8 mph.
Sunday
Sunny, with a high near 77. West wind 7 to 10 mph, with gusts as high as 17 mph.
Sunday Night
Mostly clear, with a low around 43. West wind around 9 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 79. West wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 42. Southwest wind 8 to 10 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 81. Southwest wind 9 to 14 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Canyon AZ
 36.05°N 112.14°W (Elev. 6804 ft)
Last Update:
3:09 am MST Sep 3, 2025
Forecast Valid:
6am MST Sep 3, 2025-6pm MST Sep 9, 2025
 
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