The National Weather Service predicts St. Lawrence County has a good chance of seeing showers and thunderstorms this evening and tonight. But those going out to celebrate July 4 need not worry, the NWS is calling for clear skies and temperatures in the 70s for most of the county Friday through Sunday.

Massena, Potsdam and Star Lake have a 60 percent chance of thunderstorms before 4 p.m. today, according to the NWS. Canton may see storms by 5 p.m., they said.

The NWS is calling for Gouverneur, Potsdam, Canton and Star Lake to see showers and possibly a thunderstorm before 10 p.m., with scattered showers and possibly more thunderstorms until 2 a.m.

Communities along the St. Lawrence River have a 60 percent chance of showers and thunderstorms before 2 a.m., meteorologists say.

The county should see clear skies starting Friday. Forecasters say there is a 20 percent chance of rain before 9 a.m. in Canton, before 10 a.m. in Potsdam and before noon in Star Lake.

This should give way to temperatures in the mid and high 70s on Friday throughout the county.

The detailed forecast for Potsdam:

This afternoon - Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 77. Northwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight - Showers likely and possibly a thunderstorm before 10pm, then scattered showers and thunderstorms between 10pm and 2am, then a chance of showers after 2am. Cloudy, with a low around 57. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Independence Day - A 20 percent chance of showers before 11am. Partly sunny, with a high near 74. West wind 7 to 10 mph.

Friday night - Mostly clear, with a low around 51. West wind 3 to 5 mph.

Saturday - Sunny, with a high near 77. West wind 5 to 10 mph.

Saturday night - Partly cloudy, with a low around 56. Southwest wind around 7 mph.

Sunday - Mostly sunny, with a high near 79. Southwest wind 9 to 11 mph.

Sunday night - Mostly cloudy, with a low around 63. Southwest wind 7 to 9 mph.

Monday - A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Southwest wind 8 to 10 mph.

Monday night - A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind around 9 mph.

Tuesday - A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. West wind around 8 mph.

Tuesday night - A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southwest wind around 6 mph.

Wednesday - A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southwest wind 3 to 6 mph.