National Weather Service Forecast for: Chamberlain SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 7:28 pm CDT Jun 18, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 53. East wind around 5 mph becoming south after midnight.
Partly Cloudy

 Juneteenth

Juneteenth: Cloudy, then gradually becoming mostly sunny, with a high near 81. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Decreasing
Clouds
 Friday
Night
Friday Night: Increasing clouds, with a low around 51. Northwest wind 10 to 15 mph becoming east 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Increasing
Clouds
 Saturday

Saturday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 80. East southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly Sunny
then Chance
Showers
 Saturday
Night
Saturday Night: Showers and possibly a thunderstorm. Low around 54. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Showers

 Sunday

Sunday: Showers and possibly a thunderstorm. High near 69. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Showers

 Sunday
Night
Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Showers
Likely
 Monday

Monday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 73.
Chance
Showers
 Monday
Night
Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Chance
T-storms
Lo 53 °F Hi 81 °F Lo 51 °F Hi 80 °F Lo 54 °F Hi 69 °F Lo 51 °F Hi 73 °F Lo 53 °F

 

Tonight
 
 Partly cloudy, with a low around 53. East wind around 5 mph becoming south after midnight.
Juneteenth
 
 Cloudy, then gradually becoming mostly sunny, with a high near 81. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
 
 Increasing clouds, with a low around 51. Northwest wind 10 to 15 mph becoming east 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Saturday
 
 A 30 percent chance of showers after 1pm. Partly sunny, with a high near 80. East southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
 
 Showers and possibly a thunderstorm. Low around 54. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Sunday
 
 Showers and possibly a thunderstorm. High near 69. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Sunday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Monday
 
 A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 73.
Monday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Tuesday
 
 Partly sunny, with a high near 76.
Tuesday Night
 
 Mostly clear, with a low around 51.
Wednesday
 
 Sunny, with a high near 78.
Wednesday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Thursday
 
 A 30 percent chance of showers. Partly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Chamberlain SD.