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.

Mostly Cloudy

73°F

23°C

Humidity 46%
Wind Speed NW 10 G 18 mph
Barometer 30.07 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 2:35 pm CDT
Extended Forecast for

Reliance SD

  • Juneteenth

    Juneteenth: Sunny, with a high near 77. Northwest wind around 15 mph, with gusts as high as 23 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. North northwest wind 7 to 16 mph becoming east after midnight.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 3pm. Increasing clouds, with a high near 78. Southeast wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Low around 53. East wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 64. Breezy, with an east wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 64 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 48. East northeast wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 72. Northeast wind 6 to 8 mph becoming southeast in the afternoon.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 51. East southeast wind around 8 mph becoming west northwest after midnight. Chance of precipitation is 70%.

    Low: 51 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers before 1pm. Mostly sunny, with a high near 74. Breezy, with a west northwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers and
    Breezy

Detailed Forecast

Juneteenth
Sunny, with a high near 77. Northwest wind around 15 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 49. North northwest wind 7 to 16 mph becoming east after midnight.
Saturday
A chance of showers after 3pm. Increasing clouds, with a high near 78. Southeast wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Saturday Night
Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Low around 53. East wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 64. Breezy, with an east wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 48. East northeast wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 72. Northeast wind 6 to 8 mph becoming southeast in the afternoon.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 51. East southeast wind around 8 mph becoming west northwest after midnight. Chance of precipitation is 70%.
Tuesday
A slight chance of showers before 1pm. Mostly sunny, with a high near 74. Breezy, with a west northwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 50. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Reliance SD
 43.9°N 99.6°W (Elev. 1798 ft)
Last Update:
2:36 pm CDT Jun 19, 2026
Forecast Valid:
2pm CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation