National Weather Service Forecast for: Chamberlain SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 3:03 pm CDT Jul 28, 2026
 
This
Afternoon
This Afternoon: Patchy smoke. Mostly sunny and hot, with a high near 95. South southeast wind 5 to 10 mph.
Patchy Smoke

 Tonight

Tonight: Patchy smoke. Mostly clear, with a low around 70. Southeast wind 5 to 10 mph.
Patchy Smoke

 Wednesday

Wednesday: Patchy smoke. Sunny and hot, with a high near 96. Heat index values as high as 100. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Patchy Smoke

 Wednesday
Night
Wednesday Night: A 50 percent chance of showers and thunderstorms after 1am. Patchy smoke. Partly cloudy, with a low around 70. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Patchy Smoke
then Chance
T-storms
 Thursday

Thursday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 88. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Showers

 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 65. North northwest wind around 10 mph. Chance of precipitation is 60%.
Showers
Likely
 Friday

Friday: Mostly sunny, with a high near 87.
Mostly Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 63.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 88.
Sunny
Hi 95 °F Lo 70 °F Hi 96 °F Lo 70 °F Hi 88 °F Lo 65 °F Hi 87 °F Lo 63 °F Hi 88 °F

Hazardous Weather Outlook
 

This Afternoon
 
 Patchy smoke. Mostly sunny and hot, with a high near 95. South southeast wind 5 to 10 mph.
Tonight
 
 Patchy smoke. Mostly clear, with a low around 70. Southeast wind 5 to 10 mph.
Wednesday
 
 Patchy smoke. Sunny and hot, with a high near 96. Heat index values as high as 100. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
 
 A 50 percent chance of showers and thunderstorms after 1am. Patchy smoke. Partly cloudy, with a low around 70. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
 
 Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 88. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday Night
 
 Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 65. North northwest wind around 10 mph. Chance of precipitation is 60%.
Friday
 
 Mostly sunny, with a high near 87.
Friday Night
 
 Mostly clear, with a low around 63.
Saturday
 
 Sunny, with a high near 88.
Saturday Night
 
 Mostly clear, with a low around 66.
Sunday
 
 Sunny, with a high near 92. Breezy.
Sunday Night
 
 Mostly clear, with a low around 70. Breezy.
Monday
 
 Mostly sunny, with a high near 94. Breezy.

 

Forecast from NOAA-NWS for Chamberlain SD.