Cool air started the week and will end the week in Pittsburgh, but there is good news for those who want summer heat.
In between the cool waves, folks who like warmth and humidity will be satisfied as well with steamy air quick to return by midweek.
Temperatures on Tuesday and Wednesday could climb as high as 90 degrees.
The vast majority of the time will be free of rain for outdoor plans Tuesday, but showers and thunderstorms will return to the forecast for Wednesday.
A cold front set to move through on Thursday will deliver a few showers and thunderstorms to the city as well as cooler, less humid weather.
Former Typhoon Matmo continues to wreak havoc across portions of China.
Strong and severe thunderstorms from Canada and the northern Plains will shift into the Midwest and Ohio Valley in time for the weekend.
A tornado touched down and wreaked havoc at Cherrystone Campground in Virginia on Thursday morning, causing two fatalities and leaving 36 injured.
After temperatures briefly climb to typical midsummer levels, another cooldown will roll into the Midwest and expand to the East for the last part of July.
A potent storm system moving out of the Northwest United States will bring an elevated risk of tornadoes to parts of Alberta and Saskatchewan on Thursday.
Just when it was starting to feel like the dog days of summer again, Pittsburgh will get another early taste of September Friday.
Sandusky, OH (1995)
3.22" of rain in less than 2 hours. Many roads were flooded.
Rowan, NC (1996)
4" of rain in 45 minutes.
Southern California (1996)
7-10 foot swells on the beaches from a powerful storm south of Tahiti. Life guards had to make more than 500 rescues due to the rough surf.