The five-year U.S. Formula One hiatus will end as the Grand Prix returns to the states this weekend.
Racers will start their engines in Austin, Texas, at the Circuit of the Americas on Sunday at 2 p.m. ET and will be met with partly cloudy skies and temperatures in the lower 70s.
NASCAR fans will see similarly pleasant conditions for the Sprint Cup Series race in Homestead, Fla., Sunday.
"It will be a pretty nice day in Homestead," AccuWeather.com Meteorologist Bernie Rayno said. "And not all that humid, either."
The race begins at 2 p.m. ET beneath partly cloudy skies. Temperatures will be in the upper 70s to around 80 degrees F.
A tropical wave is likely to become the Atlantic Basin's next tropical storm as it approaches or crosses the Caribbean Sea later this week and potentially pose eventual threats to North America.
Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region to end this weekend.
Typhoon Megi will continue to strengthen before threatening lives and property across Taiwan and eastern China this week.
Bouts of heavy rain and thunderstorms will continue to soak portions of Texas into Monday night, further heightening the risk of flooding.
Wintry weather marked the first days of autumn across parts of the Mountain West as snow mixed in with the changing fall foliage.
Gusty winds will accompany a push of chilly air across the Great Lakes from Sunday night through Tuesday.
Portland, ME (1991)
Record combined August-September rainfall of 19.65 inches up to Sept. 25. Old record was 14.65 inches in August-September 1954.
Clearfield, PA (1994)
Tornado touched down.
Dakotas & Minn. (1942)
26th-28th, severe freeze with temperature of only degrees F. at Parshall, N.D.