National Weather Service Forecast for: Vermillion SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 1:33 am CDT Jun 22, 2026
 
Today

Today: Cloudy, then gradually becoming mostly sunny, with a high near 75. Calm wind becoming south southeast around 5 mph in the afternoon.
Decreasing
Clouds

 Tonight

Tonight: Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.
Partly Cloudy

 Tuesday

Tuesday: Showers likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 78. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Tuesday
Night
Tuesday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 57. West southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Showers
Likely then
Chance
T-storms
 Wednesday

Wednesday: Mostly sunny, with a high near 79. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54. North northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Slight Chance
Showers

 Thursday

Thursday: Mostly sunny, with a high near 78.
Mostly Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 56.
Partly Cloudy

 Friday

Friday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 78.
Chance
Showers
Hi 75 °F Lo 57 °F Hi 78 °F Lo 57 °F Hi 79 °F Lo 54 °F Hi 78 °F Lo 56 °F Hi 78 °F

Hazardous Weather Outlook
 

Today
 
 Cloudy, then gradually becoming mostly sunny, with a high near 75. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
 
 Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.
Tuesday
 
 Showers likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 78. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
 Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 57. West southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday
 
 Mostly sunny, with a high near 79. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
 
 A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54. North northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Thursday
 
 Mostly sunny, with a high near 78.
Thursday Night
 
 Partly cloudy, with a low around 56.
Friday
 
 A 40 percent chance of showers before 1pm. Partly sunny, with a high near 78.
Friday Night
 
 Mostly cloudy, with a low around 61.
Saturday
 
 Partly sunny, with a high near 86. Breezy.
Saturday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. Breezy.
Sunday
 
 Mostly sunny, with a high near 91. Breezy.

 

Forecast from NOAA-NWS for Vermillion SD.