FIRST ALERT: A couple more calm days, before summer heat and humidity return

Sean's Sunday Evening Forecast

MYRTLE BEACH, SC (WMBF) - After the recent break, heat and humidity will gradually increase this week.

However, tonight is another night you an leave the windows open and give the air conditioner a rest. Lows will be in the middle 60s inland and near 70 at the beach.

Starting off the week, Monday will feature more of the same as the temperatures just slowly begin to climb. Humidity will start a steady climb by Tuesday and Wednesday. Temperatures will also continue to climb to near 90 at the beach and lower to middle 90s inland. Combined with the increasing humidity, the heat index will start to climb and reach to near or just over 100 by the middle and end of the week.

Arrive starting on Thursday
Arrive starting on Thursday

As the humidity continues to increase, the risk of daily storms will return to the forecast by Thursday. Afternoon and evening thunderstorms will be possible starting on Thursday.

TROPICS: As of Sunday afternoon, we are keeping an eye on a disturbance in the Caribbean. It poses no threat to the Grand Strand now, and only has a 20% chance of formation over the next 5 days. It will be moving over several islands over the next few days, which will limit any opportunities to form into a tropical storm. We will continue to watch it and post updates on the WMBF First Alert Weather App.

As of Sunday afternoon, the National Hurricane Center has a small chance of development in the Caribbean.
As of Sunday afternoon, the National Hurricane Center has a small chance of development in the Caribbean.

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