A decaying frontal system approaching from the Great Lakes will bring a few light showers to the St. Lawrence Valley this afternoon into early tonight, according to the National Weather Service (NWS).

Expect highs today around 63 with a 30 percent chance of rain, mainly after 2 p.m., NWS says. Overnight lows will be around 42 with a 30 percent chance of rain.

Skies will be sunny Sunday with a high near 62, the service says.

The next chance for widespread rainfall isn`t expected until next Wednesday, forecasters say.

Temperatures through mid-week will be near seasonal norms with a brief cooldown expected Thursday and Friday.

The forecast through Friday is as follows:

Sunday

Sunny, with a high near 62. South wind 5 to 7 mph.

Sunday Night

Mostly clear, with a low around 41. South wind around 8 mph.

Columbus Day

A chance of showers between 11am and 2pm. Partly sunny, with a high near 59. Southwest wind 7 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Monday Night

Partly cloudy, with a low around 36. Southwest wind 5 to 8 mph.

Tuesday

Mostly sunny, with a high near 56. Southwest wind 5 to 9 mph.

Tuesday Night

A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 40. Southeast wind around 6 mph.

Wednesday

Rain. High near 58. Southeast wind around 9 mph. Chance of precipitation is 90%.

Wednesday Night

A chance of rain before 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 39. West wind 8 to 10 mph. Chance of precipitation is 40%.

Thursday

Showers likely. Mostly cloudy, with a high near 52. West wind 11 to 15 mph. Chance of precipitation is 60%.

Thursday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 33. West wind 7 to 10 mph.

Friday

Mostly sunny, with a high near 55. West wind 7 to 9 mph.