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

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

44°F

7°C

Humidity 74%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 19 May 10:35 pm CDT
Extended Forecast for

14 Miles E Iona SD

Frost Advisory May 20, 01:00am until May 20, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. North northeast wind around 5 mph becoming south southeast after midnight.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Wednesday

    Wednesday: Areas of frost before 7am. Otherwise, increasing clouds, with a high near 64. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 64 °F

    Areas Frost
    and Breezy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of sprinkles with a slight chance of showers before 1am, then a chance of sprinkles between 1am and 3am. Mostly cloudy, with a low around 43. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 67 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 44. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Mostly Cloudy
    and Breezy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 63. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 63 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. North northeast wind around 5 mph becoming south southeast after midnight.
Wednesday
Areas of frost before 7am. Otherwise, increasing clouds, with a high near 64. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
A chance of sprinkles with a slight chance of showers before 1am, then a chance of sprinkles between 1am and 3am. Mostly cloudy, with a low around 43. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 67. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 44. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 63. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 54.
Memorial Day
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 88. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles E Iona SD
 43.52°N 99.14°W (Elev. 1798 ft)
Last Update:
10:42 pm CDT May 19, 2026
Forecast Valid:
10pm CDT May 19, 2026-6pm CDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation