Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Hazardous Weather Conditions

Flood Watch until September 1, 01:00 AM MDT

Current conditions at

Grand Canyon National Park Airport (KGCN)

Lat: 35.94582°NLon: 112.15538°WElev: 6598.0ft.

Clear

55°F

13°C

Humidity	87%
Wind Speed	NE 4 MPH
Barometer	30.27 in (1025.06 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	31 Aug 05:20 AM MST

More Information:

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

Extended Forecast for

12 Miles ESE Grand Canyon AZ

Flood Watch August 31, 06:40am until September 1, 01:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 31, 06:40am until September 1, 01:00am
NOW until 1:00am Tue
Flood Watch
Today
High: 66 °F
Chance
T-storms then
T-storms
Tonight
Low: 47 °F
Showers
Likely and
Patchy Fog
then Patchy
Fog
Tuesday
High: 70 °F
Patchy Fog
then Chance
T-storms
Tuesday Night
Low: 49 °F
Mostly Clear
Wednesday
High: 71 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 50 °F
Mostly Clear
Thursday
High: 73 °F
Sunny
Thursday Night
Low: 52 °F
Mostly Clear

Detailed Forecast

Today

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 66. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%.

Tonight

Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Patchy fog. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind. Chance of precipitation is 60%.

Tuesday

A 30 percent chance of showers and thunderstorms after noon. Patchy fog before noon. Otherwise, mostly sunny, with a high near 70. Light south wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 26 mph.

Tuesday Night

Mostly clear, with a low around 49. Southwest wind 6 to 11 mph, with gusts as high as 25 mph.

Wednesday

A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 71. Southwest wind 8 to 16 mph, with gusts as high as 34 mph.

Wednesday Night

Mostly clear, with a low around 50. Southwest wind 5 to 13 mph, with gusts as high as 28 mph.

Thursday

Sunny, with a high near 73. Southwest wind 6 to 14 mph, with gusts as high as 30 mph.

Thursday Night

Mostly clear, with a low around 52. Southwest wind 5 to 11 mph, with gusts as high as 25 mph.

Friday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. South wind 5 to 10 mph, with gusts as high as 23 mph.

Friday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52. Southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

Saturday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 72. Calm wind becoming south around 5 mph. Chance of precipitation is 60%.

Saturday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54. Calm wind.

Sunday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74. Calm wind becoming southeast around 5 mph. Chance of precipitation is 60%.