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.

Partly Cloudy

58°F

14°C

Humidity 56%
Wind Speed NW 7 mph
Barometer 30.13 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 13 Jun 9:55 pm CDT
Extended Forecast for

Reliance SD

  • Tonight

    Tonight: Mostly clear, with a low around 47. West northwest wind 5 to 11 mph.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Northwest wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. Northwest wind 5 to 15 mph becoming west southwest after midnight.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 79. Breezy, with a west wind 11 to 21 mph, with gusts as high as 31 mph.

    High: 79 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 50 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. East northeast wind 8 to 15 mph becoming south after midnight. Chance of precipitation is 20%.

    Low: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Windy, with a south southwest wind 14 to 24 mph becoming northwest 29 to 39 mph. Winds could gust as high as 50 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms and
    Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. Windy, with a north northwest wind 28 to 33 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 48 mph.

    Low: 51 °F

    Partly Cloudy
    and Windy

Detailed Forecast

Tonight
Mostly clear, with a low around 47. West northwest wind 5 to 11 mph.
Sunday
Sunny, with a high near 73. Northwest wind 13 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 48. Northwest wind 5 to 15 mph becoming west southwest after midnight.
Monday
Partly sunny, with a high near 79. Breezy, with a west wind 11 to 21 mph, with gusts as high as 31 mph.
Monday Night
Partly cloudy, with a low around 50. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Mostly sunny, with a high near 80. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. East northeast wind 8 to 15 mph becoming south after midnight. Chance of precipitation is 20%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Windy, with a south southwest wind 14 to 24 mph becoming northwest 29 to 39 mph. Winds could gust as high as 50 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 51. Windy, with a north northwest wind 28 to 33 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 48 mph.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 51.
Juneteenth
Mostly sunny, with a high near 86.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Breezy. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reliance SD
 43.88°N 99.6°W (Elev. 1781 ft)
Last Update:
9:36 pm CDT Jun 13, 2026
Forecast Valid:
10pm CDT Jun 13, 2026-6pm CDT Jun 20, 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