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.

Overcast

31°F

-1°C

Humidity 78%
Wind Speed NE 9 mph
Barometer 29.97 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 10 Mar 3:35 am CDT
Extended Forecast for

Iona SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. North northeast wind 11 to 14 mph.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 44. Northeast wind 10 to 14 mph.

    High: 44 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain and snow before 3am, then a slight chance of snow between 3am and 4am. Low around 27. North northeast wind 14 to 18 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Rain/Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a west northwest wind 16 to 25 mph, with gusts as high as 34 mph.

    High: 45 °F

    Decreasing
    Clouds and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. West northwest wind 11 to 18 mph becoming south southwest after midnight.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 63. Breezy, with a south southwest wind 18 to 26 mph, with gusts as high as 38 mph.

    High: 63 °F

    Mostly Cloudy
    and Breezy

  • Thursday Night

    Thursday Night: A slight chance of rain before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 29. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Blustery.
    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of snow before 1pm. Mostly cloudy, with a high near 46. North northwest wind around 14 mph becoming south southeast in the afternoon. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A slight chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 31. East southeast wind 14 to 16 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. North northeast wind 11 to 14 mph.
Tuesday
Mostly cloudy, with a high near 44. Northeast wind 10 to 14 mph.
Tuesday Night
Rain and snow before 3am, then a slight chance of snow between 3am and 4am. Low around 27. North northeast wind 14 to 18 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a west northwest wind 16 to 25 mph, with gusts as high as 34 mph.
Wednesday Night
Partly cloudy, with a low around 27. West northwest wind 11 to 18 mph becoming south southwest after midnight.
Thursday
Mostly cloudy, with a high near 63. Breezy, with a south southwest wind 18 to 26 mph, with gusts as high as 38 mph.
Thursday Night
A slight chance of rain before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 29. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Friday
A slight chance of snow before 1pm. Mostly cloudy, with a high near 46. North northwest wind around 14 mph becoming south southeast in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 31. East southeast wind 14 to 16 mph. Chance of precipitation is 30%.
Saturday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 20%.
Saturday Night
Rain and snow likely. Cloudy, with a low around 16. Blustery. Chance of precipitation is 70%.
Sunday
A slight chance of snow. Mostly cloudy, with a high near 28. Blustery. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Mostly sunny, with a high near 35.
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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:
3:36 am CDT Mar 10, 2026
Forecast Valid:
3am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation