Mostly cloudy conditions will prevail today, tonight, and Wednesday, moving from the Great Lakes eastward across the North Country, according to the National Weather Service.

Scattered rain showers will develop across northern New York this morning, with chances for showers and thunderstorms increasing this afternoon. Some brief heavy downpours and lightning could accompany some storms, but no severe storms are predicted.

Some periods of light rain tonight will be followed by widely scattered showers and thunderstorms again on Wednesday. Sunny skies and drier weather return for Thursday, before more clouds and the chance of rain Friday.

You can follow weather developments for your town and across the country at the NorthCountryNow.com weather page.

The NWS forecast for the St. Lawrence Valley and northwestern Adirondacks:

Today: A chance of showers, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 78. Southwest 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 7pm, then a chance of showers and thunderstorms after 7pm. Cloudy, with a low around 60. Light south wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: A slight chance of showers before 9pm. Partly cloudy, with a low around 59. Light southwest wind. Chance of precipitation is 20%.

Thursday: Sunny, with a high near 82. Light south wind becoming west 6 to 11 mph in the morning.

Thursday Night: Partly cloudy, with a low around 60.

Friday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.

Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.

Saturday: Mostly sunny, with a high near 71.

Saturday Night: Mostly clear, with a low around 51.

Sunday: Sunny, with a high near 72.

Sunday Night: Mostly clear, with a low around 49.

Monday: Mostly sunny, with a high near 75.