After a spell of abnormally cool conditions, a warming trend is expected in Pittsburgh through the middle of this week.
Highs early this week will climb into the lower 70s with mainly dry conditions. A shower or thunderstorm could sneak into the area by Tuesday evening.
By Wednesday, temperatures will reach the upper 70s, which is about 5 degrees above average.
More humid air will pour in at midweek and set the stage for a storm system to trigger showers and thunderstorms, some of which will be heavy and gusty.
Temperatures and humidity levels will take a tumble in the wake of the storm system later in the week.
Looking ahead, the Memorial Day holiday weekend is likely to start with near-normal temperatures with gradual warming through Memorial Day. However, it will likely not be hot and humid for the unofficial start to summer.
Rounds of drenching showers and thunderstorms will heighten the risk of flash flooding across the northeastern United States through the final weekend of July.
Drenching and locally severe thunderstorms hit portions of the mid-Atlantic on Thursday.
As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave.
Rounds of showers and thunderstorms moving westward off the coast of Africa may pave the way for future tropical systems over the Atlantic Ocean in the weeks ahead.
Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend.
A budding tropical system threatens to bring flooding rain to the Philippines into this weekend with potential future impacts on China and Taiwan.