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 >

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

70°F

21°C

Humidity	90%
Wind Speed	Calm
Barometer	29.88 in (1011.2 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	31 Aug 7:52 am CDT

More Information:

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

Extended Forecast for

Whiting IA

Today
High: 90 °F
Slight Chance
Showers then
Sunny
Tonight
Low: 68 °F
Mostly Clear
then Slight
Chance
T-storms
Tuesday
High: 91 °F
Decreasing
Clouds
Tuesday Night
Low: 69 °F
Partly Cloudy
then Chance
T-storms
Wednesday
High: 90 °F
Slight Chance
T-storms then
Sunny
Wednesday Night
Low: 70 °F
Chance
T-storms
Thursday
High: 91 °F
Mostly Sunny
Thursday Night
Low: 71 °F
Mostly Clear
then Slight
Chance
T-storms
Friday
High: 90 °F
Mostly Sunny

Detailed Forecast

Today

A 20 percent chance of showers before 10am. Mostly cloudy through mid morning, then gradual clearing, with a high near 90. West northwest wind 3 to 7 mph.

Tonight

A 20 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 68. Light and variable wind.

Tuesday

Mostly cloudy, then gradually becoming sunny, with a high near 91. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

Tuesday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Southeast wind around 8 mph becoming west southwest after midnight.

Wednesday

A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 90. West northwest wind 5 to 7 mph becoming south southeast in the afternoon. Chance of precipitation is 10%.

Wednesday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70. East wind 6 to 9 mph becoming south southeast after midnight. Winds could gust as high as 17 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Mostly sunny, with a high near 91. South wind 8 to 11 mph, with gusts as high as 20 mph.

Thursday Night

A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71. Southeast wind around 7 mph.

Friday

Mostly sunny, with a high near 90. South wind 5 to 10 mph, with gusts as high as 16 mph.

Friday Night

Partly cloudy, with a low around 71. South southeast wind around 8 mph.

Saturday

Partly sunny, with a high near 90. South wind 5 to 9 mph, with gusts as high as 16 mph.

Saturday Night

A slight chance of showers. Partly cloudy, with a low around 70. South southeast wind 6 to 8 mph.