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.

Mostly Cloudy

71°F

22°C

Humidity 43%
Wind Speed N 9 mph
Barometer 29.95 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 18 Jun 12:55 pm CDT
Extended Forecast for

15 Miles E Iona SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 76. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. North northwest wind 5 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 80. West southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 80 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. North northwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely after 1pm. Partly sunny, with a high near 77. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 77 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, then showers after 1am. Low around 54. Breezy, with an east wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 54 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.

    High: 67 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 71.

    High: 71 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 76. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 54. North northwest wind 5 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.
Juneteenth
Partly sunny, with a high near 80. West southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Partly cloudy, with a low around 53. North northwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.
Saturday
Showers likely after 1pm. Partly sunny, with a high near 77. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm, then showers after 1am. Low around 54. Breezy, with an east wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Sunday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 53.
Monday
Mostly cloudy, with a high near 71.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles E Iona SD
 43.52°N 99.14°W (Elev. 1798 ft)
Last Update:
10:03 am CDT Jun 18, 2026
Forecast Valid:
1pm CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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