Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until August 20, 08:00 PM MST

Current conditions at

KL1SF-7 Grand Canyon (AR412)

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

73°F

23°C

Humidity	29%
Wind Speed	W 0 MPH
Barometer	30.27 in (1025.06 mb)
Dewpoint	39°F (4°C)
Visibility	NA
Last update	19 Aug 11:03 PM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Grand Canyon AZ

Extreme Heat Warning August 19, 11:22pm until August 20, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 19, 11:22pm until August 20, 08:00pm
NOW until 8:00pm Thu
Extreme Heat Warning
Tonight
Low: 61 °F
Partly Cloudy
Thursday
High: 91 °F
Chance
T-storms
Thursday Night
Low: 60 °F
Chance
T-storms then
Mostly Cloudy
Friday
High: 86 °F
Chance
T-storms
Friday Night
Low: 58 °F
Slight Chance
T-storms
Saturday
High: 86 °F
Slight Chance
T-storms
Saturday Night
Low: 58 °F
Partly Cloudy
Sunday
High: 86 °F
Chance
T-storms

Detailed Forecast

Tonight

Partly cloudy, with a low around 61. Southwest wind 7 to 10 mph, with gusts as high as 15 mph.

Thursday

A 40 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 91. West wind 6 to 13 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 60. West wind 5 to 10 mph becoming southeast after midnight.

Friday

A 50 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 86. Light and variable wind becoming west 5 to 9 mph in the morning.

Friday Night

A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 58. West wind 5 to 8 mph becoming light and variable in the evening.

Saturday

A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

Saturday Night

Partly cloudy, with a low around 58. Southwest wind 6 to 8 mph becoming southeast after midnight.

Sunday

A 30 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 86. Southeast wind 5 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 58. Southwest wind around 6 mph becoming calm in the evening.

Monday

A 40 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.

Monday Night

A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57. Light and variable wind.

Tuesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 58. Light and variable wind.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.