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

Tonight: Increasing clouds, with a low around 53. North wind around 5 mph becoming calm in the evening.
Increasing
Clouds
 Juneteenth

Juneteenth: A slight chance of showers between 9am and 3pm. Mostly cloudy, with a high near 81. Southeast wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Slight Chance
Showers
 Friday
Night
Friday Night: Partly cloudy, with a low around 54. West northwest wind 5 to 10 mph becoming east in the evening.
Partly Cloudy

 Saturday

Saturday: A 30 percent chance of showers after 1pm. Increasing clouds, with a high near 82. East wind 5 to 10 mph.
Sunny then
Chance
Showers
 Saturday
Night
Saturday Night: Showers, with thunderstorms also possible after 4am. Low around 57. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Showers

 Sunday

Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 72. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Chance
Showers and
Breezy
 Sunday
Night
Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 53.
Chance
Showers
 Monday

Monday: Partly sunny, with a high near 75.
Partly Sunny

 Monday
Night
Monday Night: Partly cloudy, with a low around 55.
Partly Cloudy
Lo 53 °F Hi 81 °F Lo 54 °F Hi 82 °F Lo 57 °F Hi 72 °F Lo 53 °F Hi 75 °F Lo 55 °F

 

Tonight
 
 Increasing clouds, with a low around 53. North wind around 5 mph becoming calm in the evening.
Juneteenth
 
 A slight chance of showers between 9am and 3pm. Mostly cloudy, with a high near 81. Southeast wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday Night
 
 Partly cloudy, with a low around 54. West northwest wind 5 to 10 mph becoming east in the evening.
Saturday
 
 A 30 percent chance of showers after 1pm. Increasing clouds, with a high near 82. East wind 5 to 10 mph.
Saturday Night
 
 Showers, with thunderstorms also possible after 4am. Low around 57. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
 
 A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 72. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Sunday Night
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 53.
Monday
 
 Partly sunny, with a high near 75.
Monday Night
 
 Partly cloudy, with a low around 55.
Tuesday
 
 A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Tuesday Night
 
 Partly cloudy, with a low around 54.
Wednesday
 
 Sunny, with a high near 80.
Wednesday Night
 
 A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 55.
Thursday
 
 Mostly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Vermillion SD.