The National Weather Service says they expect rain to roll into St. Lawrence County on Friday, giving way to sun and warm temperatures Saturday and Sunday.

Meteorologists are calling for temperatures in the mid 70s today with sunny skies in all areas of St. Lawrence County. They predict thermometers tonight will fall to the low 60s, with increasing cloud coverage.

Rain could hit all St. Lawrence County communities by noon Friday with temperatures in the low 70s.

There is a 60 percent chance showers will continue into Friday night, with temperatures getting down to the high 40s.

Saturday is predicted to see temperatures in the mid 60s in all St. Lawrence County communities, with sunny skies.

The NWS says that could return to the high 40s Saturday night, climbing to the mid to high 70s Sunday.

The detailed forecast for Potsdam:

This afternoon - Mostly sunny, with a high near 77. Southwest wind around 7 mph.

Tonight - Increasing clouds, with a low around 61. South wind around 8 mph.

Friday - Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5 p.m. Mostly cloudy, with a high near 73. Southwest wind 8 to 10 mph. Chance of precipitation is 60 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday night - Showers likely before 11 p.m. Cloudy during the early evening, then gradual clearing, with a low around 51. North wind 5 to 8 mph. Chance of precipitation is 60 percent. New precipitation amounts of less than a tenth of an inch possible.

Saturday - Sunny, with a high near 66. North wind 7 to 9 mph.

Saturday night - Mostly clear, with a low around 46. North wind around 5 mph becoming light and variable in the evening.

Sunday - Partly sunny, with a high near 74. South wind around 6 mph.

Sunday night - A 50 percent chance of showers. Mostly cloudy, with a low around 58. South wind 6 to 14 mph.

Monday - Showers likely. Cloudy, with a high near 72. South wind 11 to 15 mph. Chance of precipitation is 70%.

Monday night - A 40 percent chance of showers. Mostly cloudy, with a low around 60. Southwest wind 7 to 11 mph.

Tuesday - A 40 percent chance of showers. Mostly cloudy, with a high near 72. West wind 9 to 11 mph.

Tuesday night - Mostly cloudy, with a low around 58. Southwest wind 7 to 9 mph.

Wednesday - Partly sunny, with a high near 74. West wind 7 to 9 mph.