A flood watch is in effect for much of the state, including metro Atlanta, and waves of rain will continue through Monday before drier weather moves in during the middle of the week.

Channel 2 Action News meteorologist Brian Monahan said there is a 100 percent chance of rain Sunday and Monday. Sunday temperatures will remain in the mid-60s.

The flood watch was issued for parts of north, east and central Georgia, including metro Atlanta. It went into effect at 7 p.m. Sunday and will remain in place through Monday evening.

Up to 2.5 inches of rain fell overnight Saturday into Sunday, the National Weather Service said, and an additional 2 to 4 inches of rain could fall before late Monday.

A flood warning remains in effect for Big Creek in northern Fulton County and Forsyth County until Wednesday afternoon.

A front will come through overnight and early Monday that could make things messy for the first commute since the Daylight Saving Time change. Monahan said unstable air could mean some thunderstorms are mixed in with the showers.

“It’s going to be a rough commute in the morning,” he said. “There will be a lot of rain and the roads will be very wet.”

A risk for Sunday night and Monday is the potential for power outages caused by heavy winds mixed with saturated soil. Fallen limbs and trees caused sporadic power outages Saturday night and Sunday morning.

As of about 4 p.m., Georgia Power’s website reported about 240 customers without power.

The lows Monday amid the rain showers will be in the low 60s, with highs ticking up into the upper 60s in the afternoon, Monahan said.

Rain chances Tuesday and Wednesday are expected to drop to 20 percent and 10 percent respectively, with highs getting into the lower 70s and lows in the upper 50s. Things look much better Thursday, with clearer skies and temperatures reaching the mid-70s, Monahan said.

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