National Weather Service Forecast for: Chamberlain SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 5:28 am CDT Jun 30, 2026
 
Today

Today: Sunny, with a high near 90. Southwest wind 5 to 10 mph.
Sunny

 Tonight

Tonight: A chance of rain and thunderstorms before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 63. Southwest wind around 5 mph becoming southeast in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Clear
then Showers
Likely
 Wednesday

Wednesday: A 30 percent chance of showers, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 89. South southeast wind around 5 mph becoming north northwest in the afternoon.
Chance
Showers then
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 63. North northeast wind around 5 mph becoming southeast after midnight.
Mostly Clear

 Thursday

Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Mostly Sunny
then Chance
T-storms
 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm before 1am. Partly cloudy, with a low around 64. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Showers
Likely
 Friday

Friday: Mostly sunny, with a high near 92.
Mostly Sunny

 Friday
Night
Friday Night: Showers likely and possibly a thunderstorm before 1am. Partly cloudy, with a low around 66. Chance of precipitation is 70%.
Showers
Likely
 Independence
Day
Independence Day: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.
Partly Sunny
then Chance
T-storms
Hi 90 °F Lo 63 °F Hi 89 °F Lo 63 °F Hi 92 °F Lo 64 °F Hi 92 °F Lo 66 °F Hi 89 °F

Hazardous Weather Outlook
 

Today
 
 Sunny, with a high near 90. Southwest wind 5 to 10 mph.
Tonight
 
 A chance of rain and thunderstorms before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 63. Southwest wind around 5 mph becoming southeast in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 A 30 percent chance of showers, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 89. South southeast wind around 5 mph becoming north northwest in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 63. North northeast wind around 5 mph becoming southeast after midnight.
Thursday
 
 A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
 
 Showers likely and possibly a thunderstorm before 1am. Partly cloudy, with a low around 64. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Friday
 
 Mostly sunny, with a high near 92.
Friday Night
 
 Showers likely and possibly a thunderstorm before 1am. Partly cloudy, with a low around 66. Chance of precipitation is 70%.
Independence Day
 
 A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.
Saturday Night
 
 A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63.
Sunday
 
 Mostly sunny, with a high near 89.
Sunday Night
 
 Mostly clear, with a low around 64.
Monday
 
 Mostly sunny, with a high near 91.

 

Forecast from NOAA-NWS for Chamberlain SD.