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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Iona SD

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 89. Southeast wind 10 to 14 mph.

    High: 89 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, mainly between 9pm and 10pm. Mostly cloudy, with a low around 63. Northeast wind 9 to 11 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers between noon and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. East wind 13 to 15 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of thunderstorms, then a chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 64. East southeast wind 14 to 16 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Breezy, with a southeast wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Southeast wind 14 to 18 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny and hot, with a high near 94. Southeast wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 94 °F

    Hot

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. East southeast wind 11 to 14 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 94. Southeast wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 89. Southeast wind 10 to 14 mph.
Tonight
A slight chance of showers and thunderstorms, mainly between 9pm and 10pm. Mostly cloudy, with a low around 63. Northeast wind 9 to 11 mph. Chance of precipitation is 20%.
Saturday
A slight chance of showers between noon and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. East wind 13 to 15 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of thunderstorms, then a chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 64. East southeast wind 14 to 16 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Breezy, with a southeast wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Southeast wind 14 to 18 mph. Chance of precipitation is 30%.
Monday
Mostly sunny and hot, with a high near 94. Southeast wind 13 to 15 mph, with gusts as high as 23 mph.
Monday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. East southeast wind 11 to 14 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 94. Southeast wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
Mostly sunny and hot, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Iona SD
 43.54°N 99.44°W (Elev. 1923 ft)
Last Update:
12:47 pm CDT Jul 18, 2025
Forecast Valid:
1pm CDT Jul 18, 2025-6pm CDT Jul 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation