Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

KL1SF-7 Grand Canyon (AR412)

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

NA

63°F

17°C

Humidity 55%
Wind Speed SSW 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 46°F (8°C)
Visibility NA
Last update 31 Aug 01:03 AM MST
Extended Forecast for

Grand Canyon AZ

Flood Watch August 31, 01:25am until September 1, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 31, 01:25am until September 1, 12:00am

    NOW until 12:00am Tue

    Flood Watch

  • Overnight

    Low: 58 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11am.  High near 67. Southeast wind 5 to 7 mph becoming northwest in the afternoon.  Chance of precipitation is 90%.

    High: 67 °F

    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm.  Patchy fog after 11pm.  Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 50. Southwest wind around 6 mph becoming southeast in the evening.  Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely and
    Patchy Fog
    then Patchy
    Fog

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 11am.  Mostly sunny, with a high near 71. Southeast wind 5 to 10 mph becoming southwest 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 71 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. South wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after 11am.  Sunny, with a high near 72. Southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 72 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Southwest wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. Southwest wind 7 to 16 mph, with gusts as high as 28 mph.

    High: 74 °F

    Sunny

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a steady temperature around 58. South wind around 5 mph. Chance of precipitation is 70%.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11am. High near 67. Southeast wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 90%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Patchy fog after 11pm. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 50. Southwest wind around 6 mph becoming southeast in the evening. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 71. Southeast wind 5 to 10 mph becoming southwest 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 50. South wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
A 10 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 72. Southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Wednesday Night
Mostly clear, with a low around 51. Southwest wind 9 to 13 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 74. Southwest wind 7 to 16 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 53. South wind 9 to 13 mph, with gusts as high as 22 mph.
Friday
A 30 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 74. Southwest wind 8 to 14 mph, with gusts as high as 24 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 17 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 73. South wind 3 to 6 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Light and variable wind becoming east around 5 mph after midnight.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. East wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Canyon AZ
 36.06°N 112.11°W (Elev. 6998 ft)
11:31 pm MST Aug 30, 2026
1am MST Aug 31, 2026-6pm MST Sep 6, 2026
 
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Additional Resources

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