Sioux Falls, SD — South Dakota is bracing for high winds, low humidity, and extreme fire danger across Sioux Falls and surrounding counties Friday. A Red Flag Warning is in effect until 8 PM CDT, creating hazardous conditions for outdoor activity and travel.
According to the National Weather Service in Sioux Falls, the alert spans southwest Minnesota and southeast South Dakota, including Pipestone, Minnehaha, Turner, Lincoln, and Yankton counties. Southwest winds between 15–20 mph, with gusts up to 30 mph, combined with humidity as low as 19%, are fueling fire risks. Any spark could ignite rapidly spreading flames. Outdoor burning is strongly discouraged.
Today’s high in Sioux Falls will approach 87°F, with dry and breezy air increasing afternoon fire risk. By tonight, rain chances return with a low near 38°F. Saturday brings more widespread rain and gusty winds, followed by a drop to 28°F overnight with wintry mix possible.
Thunderstorms may develop Friday evening across southwest Minnesota and southeast South Dakota. Some storms could bring wind gusts up to 60 mph and hail up to 1 inch in diameter.
Looking Ahead:
- Sunday: Partly sunny, high near 44°F.
- Monday: Mostly sunny, high of 42°F.
- Tuesday: Rain/snow likely, high of 44°F.
- Wednesday: Rain and snow mix, high near 46°F.
- Thursday: Partly sunny, high near 52°F.




