Warm, humid conditions will prevail over northern Ohio through Labor Day. However, cooler temperatures with lower humidities will come calling for the remainder of the week.
High temperatures will be in the mid-70s most days with nighttime lows in the 60s.
While the extended holiday weekend started on a dry note, the weather is destined to turn more unsettled for Labor Day in Cleveland. It will still have its rain-free intervals, but the heaviest thunderstorms will drop blinding and potentially flooding downpours.
People spending time outdoors are urged to keep an eye out for rapidly changing weather conditions and to seek shelter as storms approach.
Folks heading home from their Labor Day or late-summer ventures could encounter delays at the airport and interstate highways Monday.
It will not be until a cool front swings through Monday evening that humidity levels will be shaved and the risk of showers and thunderstorms will diminish.
Dry and sunny conditions will continue in San Francisco for the the official start to winter and the Christmas holiday.
Sunshine will return in full force for the weekend, the official start to winter, and Christmas in Los Angeles.
Big changes are on the way for parts of the Western and Central states late this week and into this weekend.
Similar to the days prior to Thanksgiving, the worst weather will focus on the days prior to Christmas as millions of travelers take to the roads and skies in the U.S. and southern Canada.
Warm air is forecast to surge into much of the eastern half of the nation by the weekend and will be accompanied by heavy rain and flooding risk in some locations.
Thunderstorms in parts of the South this weekend may become strong enough to threaten lives and property.
Lancaster, CA (1984)
Ended up with about a foot of snow. One spot in Kern County (North of LA) had 19" of snow.
Philadelphia, PA (1948)
7.4" of snow - Eagles beat Chicago Cardinals 7-0 for NFL title.
West Palm Beach, FL (1989)
Record high of 88 degrees.