National Weather Service Forecast for: Brookings SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 2:39 am CDT Aug 20, 2026
 
Overnight

Overnight: Mostly clear, with a low around 59. South wind around 10 mph.
Mostly Clear

 Thursday

Thursday: A slight chance of rain before 1pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 84. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 10%.
Mostly Sunny
then Slight
Chance
T-storms
 Thursday
Night
Thursday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 56. West northwest wind 5 to 10 mph becoming light and variable in the evening.
Slight Chance
T-storms then
Mostly Clear
 Friday

Friday: Sunny, with a high near 82. Light north wind increasing to 5 to 10 mph in the morning.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 56. North wind 5 to 10 mph becoming light north northeast.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 79. North wind 5 to 10 mph.
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 52.
Partly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 79.
Partly Sunny

 Sunday
Night
Sunday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59.
Mostly Cloudy
then Chance
T-storms
Lo 59 °F Hi 84 °F Lo 56 °F Hi 82 °F Lo 56 °F Hi 79 °F Lo 52 °F Hi 79 °F Lo 59 °F

 

Overnight
 
 Mostly clear, with a low around 59. South wind around 10 mph.
Thursday
 
 A slight chance of rain before 1pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 84. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 10%.
Thursday Night
 
 A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 56. West northwest wind 5 to 10 mph becoming light and variable in the evening.
Friday
 
 Sunny, with a high near 82. Light north wind increasing to 5 to 10 mph in the morning.
Friday Night
 
 Mostly clear, with a low around 56. North wind 5 to 10 mph becoming light north northeast.
Saturday
 
 Sunny, with a high near 79. North wind 5 to 10 mph.
Saturday Night
 
 Partly cloudy, with a low around 52.
Sunday
 
 Partly sunny, with a high near 79.
Sunday Night
 
 A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59.
Monday
 
 Partly sunny, with a high near 81.
Monday Night
 
 Partly cloudy, with a low around 61.
Tuesday
 
 Mostly sunny, with a high near 83.
Tuesday Night
 
 Mostly clear, with a low around 58.
Wednesday
 
 Mostly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Brookings SD.