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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

KL1SF-7 Grand Canyon (AR412)

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

NA

74°F

23°C

Humidity 28%
Wind Speed SE 2 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 39°F (4°C)
Visibility NA
Last update 18 Sep 12:53 PM MST
Extended Forecast for

Grand Canyon AZ

  • This Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 76. Southwest wind around 16 mph, with gusts as high as 24 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 46. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.

    Low: 46 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77. South wind 5 to 13 mph becoming west in the afternoon. Winds could gust as high as 18 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. West wind 5 to 7 mph becoming light and variable after midnight.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. South wind 5 to 8 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. South wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 50. South wind around 6 mph becoming calm in the evening.

    Low: 50 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 72. East wind 5 to 8 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 76. Southwest wind around 16 mph, with gusts as high as 24 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 46. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Saturday
Sunny, with a high near 77. South wind 5 to 13 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 39. West wind 5 to 7 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 76. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Sunday Night
Mostly cloudy, with a low around 40. South wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 76. South wind 5 to 10 mph, with gusts as high as 16 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 50. South wind around 6 mph becoming calm in the evening.
Tuesday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 72. East wind 5 to 8 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 48. East wind 3 to 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 73. East wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 51. East wind 6 to 8 mph.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72. East wind 7 to 9 mph, with gusts as high as 16 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:
11:37 am MST Sep 18, 2026
Forecast Valid:
1pm MST Sep 18, 2026-6pm MST Sep 24, 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