Seasonably high temperatures are expected toapproach 70 degrees by Thursday in St. Lawrence County, according to the National Weather Service.

Today's high is expected to reach 57, but gradual warming should continue throughout the week, with a high of 62 for Tuesday and warming to 68 by Thursday.

On Friday, rain is expected to return along with cooler temperatures.

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A seven-day forecast follows:

Today

Mostly cloudy, with a high near 57. Southwest wind 3 to 7 mph.

Tonight

Partly cloudy, with a low around 42. South wind 5 to 8 mph.

Tuesday

Mostly sunny, with a high near 63. Southwest wind 6 to 11 mph.

Tuesday Night

Mostly clear, with a low around 42. Calm wind becoming northeast around 5 mph.

Wednesday

Sunny, with a high near 63. Northeast wind 3 to 5 mph.

Wednesday Night

Mostly clear, with a low around 49. Calm wind becoming south around 5 mph after midnight.

Thursday

Partly sunny, with a high near 68. South wind 6 to 9 mph.

Thursday Night

Mostly cloudy, with a low around 53. Southwest wind around 9 mph.

Friday

Showers likely. Mostly cloudy, with a high near 62. Southwest wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

Friday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 43. West wind 10 to 17 mph.

Saturday

Partly sunny, with a high near 49. West wind 9 to 11 mph.

Saturday Night

Partly cloudy, with a low around 33. Northwest wind 3 to 8 mph.

Sunday

Mostly sunny, with a high near 46. West wind 5 to 8 mph.