Severe Storms Spur Sharp Weather Shift Ahead Of Memorial Day Weekend: See Latest Forecast

Two days of record-high temperatures will take a sharp turn back toward early spring with a series of potentially severe storms ushering in the huge change on Wednesday, according to the National Weather Service.

Summer storms caused wind damage in Worcester, Waltham, Sterling and other cities and towns along the Mass Pike on Tuesday. Those storms are likely to be sporadic — but possibly very strong — on Wednesday as a cold front replaces temperatures in the 90s with rising humidity, with lows back in the 40s by Thursday night.

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Tuesday's high temperature of 96 degrees in Boston crushed the old record of 90 degrees. Highs on Wednesday will again threaten the record of 92 degrees as thunderstorms arrive in the afternoon.

While not everyone will get a storm, those who do should prepare to take cover with heavy rain, flash flooding and high winds.

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A Heat Advisory remained in effect for much of Massachusetts until 8 p.m. on Wednesday.

The weather turn will be a big one by Thursday morning with winds switching around to the north and a high temperature of 67 degrees.

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After a chilly overnight with lows in the 40s, another seasonable day awaits on Friday with a high of 66 before unsettled weather moves in for the weekend.

The "official start of summer" could feel like anything but that on Saturday, with a chance of showers in the morning and a high temperature of 62 degrees.

Sunday is forecast to be a raw and rainy day with a high of 59 degrees and a strong east wind off the ocean, making it feel even cooler than that.

Monday could see a little improvement with mostly cloudy skies, a 50 percent chance of rain, and a high of 66 degrees.

The long-range NWS forecast calls for a return to sunshine and warmer temperatures just in time for the work week, with a high of 73 on Tuesday.