Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Hazardous Weather Conditions

Extreme Heat Warning in effect from August 18, 10:00 AM MST until August 20, 08:00 PM MST

Current conditions at

KL1SF-7 Grand Canyon (AR412)

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

67°F

19°C

Humidity	39%
Wind Speed	W 0 MPH
Barometer	30.33 in (1027.09 mb)
Dewpoint	41°F (5°C)
Visibility	NA
Last update	17 Aug 10:33 PM MST

More Information:

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

Extended Forecast for

7 Miles SSE Supai AZ

Extreme Heat Warning August 18, 10:00am until August 20, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Tonight
Low: 66 °F
Mostly Clear
Tuesday
High: 100 °F
Hot
Tuesday Night
Low: 67 °F
Partly Cloudy
Wednesday
High: 101 °F
Hot
Wednesday Night
Low: 69 °F
Mostly Clear
Thursday
High: 101 °F
Slight Chance
T-storms
Thursday Night
Low: 68 °F
Slight Chance
T-storms then
Partly Cloudy
Friday
High: 96 °F
T-storms
Likely
Friday Night
Low: 66 °F
Chance
T-storms then
Mostly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 66. Southeast wind 3 to 7 mph.

Tuesday

Sunny and hot, with a high near 100. Light and variable wind becoming west 5 to 8 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 67. West wind around 5 mph becoming southeast after midnight.

Wednesday

Sunny and hot, with a high near 101. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 69. West wind around 6 mph becoming south after midnight.

Thursday

A 10 percent chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 101. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.

Thursday Night

A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 68. Southwest wind around 6 mph becoming south after midnight.

Friday

Showers and thunderstorms likely after 11am. Partly sunny and hot, with a high near 96. South wind around 6 mph becoming calm. Chance of precipitation is 60%.

Friday Night

A 40 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 66. Calm wind becoming south 5 to 7 mph after midnight.

Saturday

A 30 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 94. Southeast wind 5 to 7 mph becoming calm.

Saturday Night

A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind 3 to 7 mph.

Sunday

A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South wind around 6 mph becoming calm.

Sunday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind 3 to 7 mph.

Monday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southeast wind around 6 mph becoming calm.