A fall-like storm moved through the East this weekend, likely having people in the region wondering if it was the end of June or the beginning of October. The weekend was so out of season, meteorologists in Boston warned it'll be downright "awful."

The same pattern change also moved into the Southeast, ushering in rather pleasant changes after the last 7 to 10 days of uncomfortable and record-breaking heat.

You can blame the change on the jet stream, which took a sharp southward dive over the East, squashing the eastern half of the area of high pressure that has been in place over the South.

At the same time as the southward dip in the jet stream slides over the East, the jet stream lifted northward over the Northwest, bringing a record-smashing heat wave to that region.

(MORE: Western Heat Wave May Break June Records)

Here's a layout of how the fall-like storm impacted the region.

Fall-like Weekend

The weekend started with widespread rain and thunderstorms across the East Saturday.

The rain has pushed Fort Wayne, Indiana, to an all-time record. Downpours Saturday morning not only prompted a flash flood warning for the city, but they also pushed the city's month-to-date rainfall total to 11.56 inches. This sets a new record for the wettest month on record in Fort Wayne, beating the 11.00 inches recorded in July 1986.

Farther east, Baltimore has erased its June rainfall record and replaced it with a month-to-date total of 13.09 inches through Saturday. That makes June 2015 the fourth-wettest month in Baltimore weather history.

Montpelier, Vermont, also topped its previous wettest June on record of 8.36 inches in 2013, thanks to this weekend storm. 

The surface low-pressure system will also produce gusty winds in parts of the region, particularly near coastal areas of New England on Sunday.

The winds downed some trees and power lines in eastern Massachusetts early Sunday morning. Wind gusts in excess of 50 mph were reported in several locations near the coast.

Windy weather developed Saturday on the eastern Great Lakes. A long fetch of northeasterly winds raised water levels more than 3 feet at the southwest end of Lake Erie, around Toledo. On the other end near Buffalo, water levels fell at least 2 feet.

In addition to the rain and wind, temperatures were cool.

(MAPS: Weekly Planner)

Boston has been fairly cool for June with the average high temperature more than two degrees cooler than average. Highs have only reached 80 degrees seven times this June -- the average number of 80 degrees days in June is 11. Boston's high of 59 degrees on Sunday, June 28 was among the coldest highs on record for the last two days in June (57 in June 30, 1967). Average highs in Boston are near 80 degrees for the end of June.

The National Weather Service weather forecast office in Boston noted in a forecast discussion that, "Overall this is an atypical pattern for the beginning of summer. Looks just awful. Overall unseasonable with onshore east/northeast winds. Periods of wet weather at times."

Bangor, Maine, only managed a high of 57 degrees on Sunday, June 28. Only July 4, 1992 (56 degrees) was colder later into the first half of summer in Bangor. Average highs around 60 degrees occur in early-to-mid October.

Southeast Relief

Much of the Southeast had been baking under a strong upper-level ridge of high pressure for more than a week. This has brought a stretch of hazy, hot and humid days. 

(MORE: Sweltering Stretch of Record Heat in the Southeast)

High pressure has now weakened thanks to that southward dip in the jet stream and a cold front. This is allowing temperatures to return to closer to where they are expected to be for this time of year – much more comfortable than the last week or so.

Instead of highs in the mid-to-upper 90s -- which is a good 5 to 15 degrees warmer than average -- highs topped out in the low 80s in Atlanta Sunday, which is a smidge below late-June averages.

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