Humid days and afternoon showers are likely for the start of the week on Long Island, forecasters say.

Unsettled weather is expected to arrive Monday and last through the middle of the week, according to the National Weather Service.

"The week will be pretty much what you'd expect for July," said David Stark, a meteorologist for the National Weather Service at Upton. "It's starting to get a little more on the muggy side."

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For the start of the workweek on Monday, highs will reach the low to mid-80s and it will be partly sunny, with clouds leading to a 30 percent chance of showers and a thunderstorm by Monday night. Lows will again be in the upper 60s.

"The chances of thunderstorms could start Monday, but more likely we'll see the bulk of the rain on Tuesday or Wednesday," said News 12 Long Island Meteorologist Norm Dvoskin.

Tuesday will see lows in the 80s and the chance of showers and thunderstorms increases to 50 percent by the afternoon.

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"There'll be little more cloud cover," Stark said. "It'll be more humid and the chance of precipitation continues into Tuesday night." Lows will climb into the 70s.

"On Wednesday there'll be a front moving through," Stark said. "Basically, Tuesday into Wednesday there'll be a chance of thunderstorms." Wednesday night's lows will be near 70.

"Again we're looking at highs in the low 80s on Thursday and it looks a lot better," Stark said. "There's no precipitation, and it'll be less humid, with lows in the upper 60s."

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There will be a dry end to the week on Friday when highs in the low 80s will start the weekend and lows will be in the mid- to upper 60s.

"The weekend looks good," Dvoskin said.

With Laura Figueroa