National Weather Service Forecast for: Harrisburg SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 2:02 pm CDT Jul 14, 2025
 
This
Afternoon
This Afternoon: Sunny, with a high near 91. South wind around 10 mph.
Sunny

Tonight

Tonight: Mostly clear, with a low around 69. South wind around 10 mph.
Mostly Clear

Tuesday

Tuesday: Sunny, with a high near 90. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny

Tuesday
Night
Tuesday Night: Showers and thunderstorms.  Low around 65. South wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 80%.
T-storms

Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 78. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Chance
Showers

Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 58. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.
Slight Chance
T-storms then
Chance
Showers
Thursday

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

Thursday
Night
Thursday Night: Partly cloudy, with a low around 57.
Partly Cloudy

Friday

Friday: Mostly sunny, with a high near 79.
Mostly Sunny

Hi 91 °F Lo 69 °F Hi 90 °F Lo 65 °F Hi 78 °F Lo 58 °F Hi 75 °F Lo 57 °F Hi 79 °F

Hazardous Weather Outlook
 

This Afternoon
 
Sunny, with a high near 91. South wind around 10 mph.
Tonight
 
Mostly clear, with a low around 69. South wind around 10 mph.
Tuesday
 
Sunny, with a high near 90. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
 
Showers and thunderstorms. Low around 65. South wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Wednesday
 
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 78. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday
 
Partly sunny, with a high near 75.
Thursday Night
 
Partly cloudy, with a low around 57.
Friday
 
Mostly sunny, with a high near 79.
Friday Night
 
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.
Saturday
 
A 30 percent chance of showers. Partly sunny, with a high near 83.
Saturday Night
 
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Sunday
 
Mostly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Harrisburg SD.