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

Overnight: Partly cloudy, with a low around 58. Calm wind.
Partly Cloudy

 Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 84. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy Fog
then Slight
Chance
T-storms
 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 61. Southwest wind 5 to 10 mph becoming light south southwest in the evening.
Slight Chance
T-storms then
Mostly Clear
 Friday

Friday: Sunny, with a high near 85. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 59. North northeast wind around 5 mph becoming calm in the evening.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 81. Calm wind becoming north northeast around 5 mph in the morning.
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 56.
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. Mostly cloudy, with a low around 60.
Chance
T-storms
Lo 58 °F Hi 84 °F Lo 61 °F Hi 85 °F Lo 59 °F Hi 81 °F Lo 56 °F Hi 79 °F Lo 60 °F

Hazardous Weather Outlook
 

Overnight
 
 Partly cloudy, with a low around 58. Calm wind.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 84. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 61. Southwest wind 5 to 10 mph becoming light south southwest in the evening.
Friday
 
 Sunny, with a high near 85. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
 
 Mostly clear, with a low around 59. North northeast wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 81. Calm wind becoming north northeast around 5 mph in the morning.
Saturday Night
 
 Partly cloudy, with a low around 56.
Sunday
 
 Partly sunny, with a high near 79.
Sunday Night
 
 A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Monday
 
 Partly sunny, with a high near 80.
Monday Night
 
 Partly cloudy, with a low around 62.
Tuesday
 
 Mostly sunny, with a high near 83.
Tuesday Night
 
 Mostly clear, with a low around 60.
Wednesday
 
 Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Canton SD.