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.

Fog

53°F

12°C

Humidity 100%
Wind Speed Calm
Barometer 30.23 in
Dewpoint 53°F (12°C)
Visibility 0.25 mi
Last update 17 Sep 1:15 am CDT
Extended Forecast for

Reliance SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 71. East wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.

    High: 71 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 10pm. Patchy fog after midnight. Low around 59. Breezy, with an east wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 59 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 3pm, then a chance of showers. Mostly cloudy, with a high near 73. Breezy, with an east wind 14 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: A slight chance of showers before 1am. Cloudy, with a low around 55. North wind 10 to 14 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Cloudy, with a high near 66. North wind around 11 mph.

    High: 66 °F

    Cloudy

  • Saturday Night

    Saturday Night: A slight chance of showers. Mostly cloudy, with a low around 55. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Cloudy, with a high near 65. East northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 54. East northeast wind 8 to 10 mph. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. Calm wind.
Thursday
A slight chance of showers after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 71. East wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.
Thursday Night
A chance of showers, then showers and possibly a thunderstorm after 10pm. Patchy fog after midnight. Low around 59. Breezy, with an east wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Friday
Showers likely and possibly a thunderstorm before 3pm, then a chance of showers. Mostly cloudy, with a high near 73. Breezy, with an east wind 14 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A slight chance of showers before 1am. Cloudy, with a low around 55. North wind 10 to 14 mph. Chance of precipitation is 20%.
Saturday
Cloudy, with a high near 66. North wind around 11 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 55. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.
Sunday
Showers likely, mainly after 1pm. Cloudy, with a high near 65. East northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. East northeast wind 8 to 10 mph. Chance of precipitation is 50%.
Monday
A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 74. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reliance SD
 43.9°N 99.6°W (Elev. 1798 ft)
Last Update:
1:21 am CDT Sep 17, 2026
Forecast Valid:
1am CDT Sep 17, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
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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