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 >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

68°F

20°C

Humidity	89%
Wind Speed	SE 5 mph
Barometer	30.01 in
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	19 Aug 9:35 pm CDT

More Information:

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

Extended Forecast for

Iona SD

Tonight
Low: 62 °F
Mostly Clear
Thursday
High: 88 °F
Sunny
Thursday Night
Low: 63 °F
Mostly Clear
Friday
High: 87 °F
Sunny
Friday Night
Low: 63 °F
Mostly Clear
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 63 °F
Mostly Clear
then Chance
T-storms
Sunday
High: 81 °F
Chance
Showers and
Breezy
Sunday Night
Low: 65 °F
Chance
T-storms and
Breezy

Detailed Forecast

Tonight

Mostly clear, with a low around 62. South wind 8 to 14 mph.

Thursday

Sunny, with a high near 88. Southwest wind 10 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph.

Thursday Night

Mostly clear, with a low around 63. North northwest wind 5 to 7 mph becoming south in the evening.

Friday

Sunny, with a high near 87. East southeast wind 6 to 11 mph, with gusts as high as 21 mph.

Friday Night

Mostly clear, with a low around 63. East northeast wind 6 to 11 mph.

Saturday

Sunny, with a high near 83. East wind 7 to 11 mph, with gusts as high as 20 mph.

Saturday Night

A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. East wind 11 to 15 mph. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 81. Breezy, with a south southeast wind 17 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65. Breezy, with a south southeast wind 17 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.

Monday

Mostly sunny, with a high near 85.

Monday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.

Tuesday

Mostly sunny, with a high near 85.

Tuesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.

Wednesday

Mostly sunny, with a high near 85.