Metro

Memorial Day weekend weather a mixed bag: Saturday’s heat to be followed by clouds and rain

After Saturday’s summery heat, clouds are expected to roll in and temperatures to drop for the rest of Memorial Day weekend in Greater Boston.

Saturday was warm and partly cloudy, with temperatures reaching 91 degrees, more than 20 degrees warmer than the historical average of 69 degrees, according to the National Weather Service.

Scattered showers and isolated thunderstorms are possible between midnight and 2 a.m. Sunday, with forecasters giving a 30 percent of precipitation. Winds up to 11 miles per hour are expected to blow out of the east, with gusts of up to 29 miles per hour, according to the service.

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“A cold front approaches from the north and brings scattered showers and thunderstorms tonight,” meteorologists wrote in their forecast.

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Temperatures are expected to plummet Sunday, where the high is only likely to hit 57 degrees. The day is expected to be rainy and cloudy, with showers likely between 7 a.m. and 2 p.m., according to service.

Patches of fog are expected before noon, and winds between 10 and 13 miles per hour, with gusts of up to 24 m.p.h., are expected to blow throughout the day. Between one-tenth and a quarter of an inch of rain is expected to fall, according to the service.

Memorial Day is expected to be warmer and dry, but cloudy with a high of 66 degrees, according to the service.

Tuesday is expected to be warm and sunny with a high of 83 degrees, according to the service.

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Wednesday and Thursday are likely to be warm and mostly sunny with highs of 80 and 79 degrees respectively, according to the service.

Andrew Grant can be reached at andrew.grant@globe.com