A tranquil weather pattern will bring a mix of sun and clouds and cooler air early this week in the Charleston area.

The National Weather Service called for mostly sunny conditions and a high of only 78 degrees on Monday, which is 9 degrees below the normal mark for that date.

Forecasters don't expect a chance of thunderstorms until Friday.

Here is the complete Lowcountry forecast from the Weather Service:

Monday: Mostly sunny, with a high near 78. Northeast wind 8 to 10 mph.

Monday night: Partly cloudy, with a low around 63. Southeast wind 5 to 9 mph becoming calm after midnight.

Tuesday: Mostly sunny, with a high near 83. Light and variable wind becoming south 5 to 10 mph in the afternoon.

Tuesday night: Partly cloudy, with a low around 67. Southwest wind 6 to 9 mph.

Wednesday: Mostly sunny, with a high near 87. Southwest wind 7 to 10 mph.

Wednesday night: Mostly clear, with a low around 71.

Thursday: Mostly sunny, with a high near 87.

Thursday night: Partly cloudy, with a low around 73.

Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30 percent.

Friday night: Partly cloudy, with a low around 74.

Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40 percent.

Saturday night: Mostly cloudy, with a low around 72.

Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30 percent.

Reach Andrew Knapp at 937-5414 or twitter.com/offlede.