Sioux Falls, SD – Residents should be prepared for a brief but potentially disruptive round of thunderstorms Friday afternoon, with gusty winds up to 30 mph possible. Temperatures will climb to near 89°F before storms develop after 1 p.m., mainly across Minnehaha County and surrounding communities.
According to the National Weather Service in Sioux Falls, a 20 percent chance of showers and thunderstorms will be the primary hazard Friday, with storms capable of producing brief downpours and sudden wind gusts. South winds will run steady near 20 mph with higher gusts, which could impact high-profile vehicle travel on open roads such as I-29 and I-90.
Conditions turn hot Saturday with highs around 92°F under mostly sunny skies, making it a good day for outdoor activities—though sun safety is recommended. Another storm chance returns Sunday afternoon, with scattered showers possible into the evening.
Friday’s storms are not expected to be widespread, but even isolated cells could cause temporary delays for outdoor events and travel. Residents should monitor weather updates through the weekend as new advisories may be issued.
Five Day Sioux Falls, SD Forecast:
- Friday: Slight chance of thunderstorms after 1 p.m., breezy. High 89°F, low 73°F.
- Saturday: Mostly sunny and hot. High 92°F, low 72°F.
- Sunday: Chance of thunderstorms after 1 p.m. High 90°F, low 69°F.
- Monday: Mostly sunny. High 87°F, low 67°F.
- Tuesday: Mostly sunny. High 87°F, low 65°F.




