National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

80°F

27°C

Humidity 46%
Wind Speed E 3 mph
Barometer 29.95 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 31 Aug 6:35 pm CDT
Extended Forecast for

11 Miles ENE Iona SD

  • Tonight

    Tonight: Partly cloudy, with a low around 64. South southeast wind around 5 mph becoming east after midnight.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 84. East wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 61. Northeast wind 5 to 10 mph.

    Low: 61 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 88. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Southeast wind around 10 mph.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. South southwest wind 5 to 10 mph.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. South southeast wind around 5 mph becoming east after midnight.
Tuesday
A chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 84. East wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 61. Northeast wind 5 to 10 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 88. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 66. Southeast wind around 10 mph.
Thursday
Sunny, with a high near 92. South southwest wind 5 to 10 mph.
Thursday Night
Clear, with a low around 68.
Friday
Sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 69.
Labor Day
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Iona SD
 43.61°N 99.2°W (Elev. 1749 ft)
Last Update:
5:28 pm CDT Aug 31, 2026
Forecast Valid:
6pm CDT Aug 31, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation