A stretch of unseasonably warm temperatures that has led to early October feeling less like fall and more like summer will continue early this week in Massachusetts, before a cold front brings much-needed rainfall.
Monday will get off to a mild start, with temperatures in the 50s and 60s, a layer of fog and some low clouds. The fog and low clouds may linger into late morning, but temperatures are expected to reach the low to mid-80s once they drift away.
If the fog and clouds stick around though, temperatures could be “quite a bit cooler” than expected, National Weather Service forecasters wrote.
More clouds and fog are expected Monday night.
“With low clouds and areas of mist/fog making it further northward for Monday night, similar forecast concerns exist regarding how warm temperatures may get” on Tuesday, forecasters wrote.
Tuesday should be a little cooler thanks to that added cloud cover, with temperatures in the 70s to low 80s.
A cold front is expected to move into the state on Tuesday night into Wednesday morning, bringing “much-needed rainfall,” forecasters wrote. The amount of precipitable water in the air suggests a period of steady light to moderate rain, with a rumble of thunder possible.
“Rain amounts are still a little uncertain, but [chances] of 24-hour rain accumulations over a half inch or more continue to increase,” forecasters wrote.
A strong high-pressure system is expected to build in the wake of the front Wednesday night, leading to dry conditions and decreasing winds Thursday and Friday.
Temperatures will decline as well, with highs expected to be in the mid-50s to around 60 on Thursday, which could also bring the first night with frosty temperatures in the 30s in many parts of the state.
Friday will be slightly warmer, with highs in the low to mid 60s.
Looking ahead, a slow-moving coastal low-pressure system is likely to move in later Saturday and into Sunday.
“There is time to assess this, but if this low pressure does indeed materialize and approaches from the south, we could have a few days of overcast, cooler temperatures, enhanced east breezes and some rains,” forecasters wrote.
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