After a humid start to the week, Pittsburgh will experience a taste of September by midweek.
Humid air into Tuesday midday will allow showers and thunderstorms to form or move through the area.
However, a strong cool front will cross the region Tuesday afternoon, marking an end to the storm threat and the beginning of a several-day spell of unseasonably cool and less humid air for mid-July.
Nighttime temperatures will dip into the 50s F Tuesday through Thursday. Daytime highs Tuesday into Friday will be in the 70s.
Temperatures of this sort are more common for Pittsburgh during the middle of September.
Periods of rain will drench portions of the northeastern United States from midweek through Friday.
There is a significant chance the tropical system brewing near the Caribbean could take a turn toward the United States next week.
The final day of September will bring a rare lunar event that hasn’t occurred since March of 2014, a Black Moon.
Communities along the Cedar River in Iowa are bracing for some of the highest water levels in nearly a decade following excessive rainfall across the region last week.
Following some rain and gusty winds on Tuesday, a strong storm will target the United Kingdom on Thursday.
Typhoon Megi will threaten lives and property in eastern China into the middle of the week after slamming Taiwan.
Ramsey, MI (1991)
Langley AFB, VA (1993)
Wind gusts of 111 mph.
New England (1816)
"Black Frost" over all New England killed still unripened corn.