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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

40°F

4°C

Humidity 66%
Wind Speed S 10 mph
Barometer 30.30 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 17 Oct 7:35 am CDT
Extended Forecast for

6 Miles E Iona SD

  • Today

    Today: Sunny, with a high near 69. Breezy, with a south wind 20 to 22 mph, with gusts as high as 33 mph.

    High: 69 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 46. Breezy, with a south wind 11 to 20 mph, with gusts as high as 32 mph.

    Low: 46 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. South wind 5 to 9 mph becoming north in the afternoon.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Northeast wind 5 to 7 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. Light and variable wind becoming east southeast 5 to 10 mph in the morning.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. South southeast wind around 9 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. South southeast wind 9 to 18 mph, with gusts as high as 28 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. South southeast wind 9 to 15 mph, with gusts as high as 24 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. South wind 8 to 10 mph becoming west in the afternoon.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 69. Breezy, with a south wind 20 to 22 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 46. Breezy, with a south wind 11 to 20 mph, with gusts as high as 32 mph.
Sunday
Sunny, with a high near 67. South wind 5 to 9 mph becoming north in the afternoon.
Sunday Night
Mostly clear, with a low around 39. Northeast wind 5 to 7 mph.
Monday
Sunny, with a high near 63. Light and variable wind becoming east southeast 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 44. South southeast wind around 9 mph.
Tuesday
Sunny, with a high near 68. South southeast wind 9 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 50. South southeast wind 9 to 15 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 74. South wind 8 to 10 mph becoming west in the afternoon.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
A chance of showers. Partly cloudy, with a low around 58. Breezy. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 76. Breezy. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Iona SD
 43.56°N 99.32°W (Elev. 1355 ft)
Last Update:
7:21 am CDT Oct 17, 2026
Forecast Valid:
7am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
 
Forecast Discussion
 
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