National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

The following tables show the climate information for Rapid City, Gillette, Lead, Winner, Lemmon, Sundance, Spearfish, Newcastle, Hot Springs, and Custer on Independence Day, as well as the weather in Rapid City and Gillette for the past 10 Independence Days. Average highs around the area on July 4th are in the 80s, with upper 70s in the Black Hills. Early July is notorious for severe thunderstorms, so be aware of the potential for dangerous cloud-to-ground lightning, strong winds, and large hail when celebrating!

Independence Day in 2023 was unseasonably cool across much of the area, with the high in Rapid City only reaching 61°—a mere one degree above the record low maximum for July 4th. 2024's Independence Day was warmer, but temperatures remained below normal, with highs generally in the 70s.