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

81°F

27°C

Humidity 27%
Wind Speed S 8 mph
Barometer 30.05 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Sep 6:55 pm CDT
Extended Forecast for

Reliance SD

  • Tonight

    Tonight: Partly cloudy, with a low around 62. South southeast wind 13 to 16 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 85. Breezy, with a south southeast wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 85 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Breezy, with a south southeast wind around 22 mph, with gusts as high as 34 mph.

    Low: 63 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Breezy, with a south wind 20 to 23 mph, with gusts as high as 32 mph.

    High: 85 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. South wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. South wind 14 to 16 mph, with gusts as high as 24 mph.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 85. West southwest wind 13 to 18 mph, with gusts as high as 28 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 55. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. South southeast wind 13 to 16 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 85. Breezy, with a south southeast wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.
Tuesday Night
Mostly clear, with a low around 63. Breezy, with a south southeast wind around 22 mph, with gusts as high as 34 mph.
Wednesday
Mostly sunny, with a high near 85. Breezy, with a south wind 20 to 23 mph, with gusts as high as 32 mph.
Wednesday Night
Mostly clear, with a low around 59. South wind 11 to 15 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 89. South wind 10 to 16 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 64. South wind 14 to 16 mph, with gusts as high as 24 mph.
Friday
Mostly sunny, with a high near 85. West southwest wind 13 to 18 mph, with gusts as high as 28 mph.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 55. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers before 1pm. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 20%.
Monday
A slight chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Reliance SD
 43.88°N 99.6°W (Elev. 1781 ft)
Last Update:
6:46 pm CDT Sep 29, 2025
Forecast Valid:
7pm CDT Sep 29, 2025-6pm CDT Oct 6, 2025
 
Forecast Discussion
 
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Additional Resources

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