National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

76°F

24°C

Humidity 20%
Wind Speed Calm
Barometer 29.81 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 20 Apr 6:55 pm CDT
Extended Forecast for

Reliance SD

  • Tonight

    Tonight: Mostly clear, with a low around 42. Calm wind becoming east around 6 mph after midnight.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. North northeast wind 6 to 14 mph becoming southeast in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. Southeast wind around 15 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 93. Windy, with a south wind 13 to 18 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 93 °F

    Hot and Windy

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: A slight chance of showers after 1pm. Mostly sunny, with a high near 71. Windy, with a west wind 18 to 23 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 20%.

    High: 71 °F

    Mostly Sunny
    and Breezy
    then Slight
    Chance
    Showers and
    Windy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36. Windy, with a west northwest wind 26 to 33 mph, with gusts as high as 46 mph.

    Low: 36 °F

    Partly Cloudy
    and Windy

  • Friday

    Friday: Mostly sunny, with a high near 56. Breezy, with a west northwest wind 23 to 28 mph, with gusts as high as 38 mph.

    High: 56 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 29 mph.

    Low: 31 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Calm wind becoming east around 6 mph after midnight.
Tuesday
Sunny, with a high near 81. North northeast wind 6 to 14 mph becoming southeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 52. Southeast wind around 15 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny and hot, with a high near 93. Windy, with a south wind 13 to 18 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 43 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers after 1pm. Mostly sunny, with a high near 71. Windy, with a west wind 18 to 23 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 36. Windy, with a west northwest wind 26 to 33 mph, with gusts as high as 46 mph.
Friday
Mostly sunny, with a high near 56. Breezy, with a west northwest wind 23 to 28 mph, with gusts as high as 38 mph.
Friday Night
Partly cloudy, with a low around 31. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 29 mph.
Saturday
A slight chance of snow showers before 1pm. Mostly sunny, with a high near 54. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A slight chance of rain and snow showers. Partly sunny, with a high near 55. Chance of precipitation is 20%.
Sunday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Monday
A slight chance of rain and snow showers. Partly sunny, with a high near 55. 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
 43.88°N 99.6°W (Elev. 1781 ft)
Last Update:
6:36 pm CDT Apr 20, 2026
Forecast Valid:
7pm CDT Apr 20, 2026-6pm CDT Apr 27, 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