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.

Fair

58°F

14°C

Humidity 22%
Wind Speed SE 13 mph
Barometer 30.27 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 10 Apr 4:35 pm CDT
Extended Forecast for

Reliance SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 57. South southeast wind around 10 mph, with gusts as high as 21 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers between 1am and 2am. Increasing clouds, with a low around 43. Breezy, with a southeast wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 10%.

    Low: 43 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: A slight chance of showers between 8am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 75. Breezy, with a south wind 22 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    High: 75 °F

    Breezy.
    Slight Chance
    Showers then
    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55. Breezy, with a south southeast wind 17 to 20 mph, with gusts as high as 30 mph.

    Low: 55 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80. Breezy, with a west wind 16 to 23 mph, with gusts as high as 32 mph.

    High: 80 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. West northwest wind 7 to 13 mph becoming east after midnight.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers. Mostly sunny, with a high near 79. East wind 10 to 14 mph becoming west in the afternoon. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Partly cloudy, with a low around 47. Southwest wind 10 to 13 mph becoming northeast after midnight. Chance of precipitation is 20%.

    Low: 47 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 65. North northwest wind 13 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 57. South southeast wind around 10 mph, with gusts as high as 21 mph.
Tonight
A slight chance of showers between 1am and 2am. Increasing clouds, with a low around 43. Breezy, with a southeast wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 10%.
Saturday
A slight chance of showers between 8am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 75. Breezy, with a south wind 22 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 55. Breezy, with a south southeast wind 17 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 80. Breezy, with a west wind 16 to 23 mph, with gusts as high as 32 mph.
Sunday Night
Mostly clear, with a low around 47. West northwest wind 7 to 13 mph becoming east after midnight.
Monday
A slight chance of showers. Mostly sunny, with a high near 79. East wind 10 to 14 mph becoming west in the afternoon. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 47. Southwest wind 10 to 13 mph becoming northeast after midnight. Chance of precipitation is 20%.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 65. North northwest wind 13 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 75. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Reliance SD
 43.88°N 99.6°W (Elev. 1781 ft)
Last Update:
4:36 pm CDT Apr 10, 2026
Forecast Valid:
4pm CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation