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St. John Valley weather for Sept. 12-18, 2018

High pressure will build in Wednesday from Quebec and bring clearing skies and mild conditions. High pressure will crest over the Valley Thursday then slowly drift east into the weekend, with mostly clear skies and mild conditions across the SJV. Skies become partly cloudy Sunday as a weak cold front approaches, and this system may produce a few showers Sunday afternoon and evening. Monday keeps a chance for showers as another cold front approaches from the northwest with a chance for showers lingering into Tuesday.

Daily Weather Summary

Wednesday, September 12: High: 69. Low: 50.

Day: Decreasing clouds with mostly clear skies in the afternoon. Northwest winds become south/southwesterly 0 to 5 mph. Night: Mostly clear with light south/southwest winds.

Thursday, September 13: High: 75. Low: 50.

Day: Sunny and mild with light west/northwest winds. Night: Mostly clear with light southwest winds.

Friday, September 14: High: 83. Low: 56.

Day: Mostly sunny and warm with light southwest winds. Night: Mostly clear with light southwest winds.

Saturday, September 15: High: 82. Low: 58.

Day: Mostly clear with light southwest winds. Night: Mostly clear with light west winds.

Sunday, September 16: High: 77. Low: 55.

Day: Partly cloudy and mild with light west winds. 20 percent chance for afternoon/evening showers. Night: Partly cloudy with a 20 percent chance for showers. Light southwest winds.

Monday, September 17: High: 75. Low: 55.

Day: Partly cloudy in the morning then partly sunny in the afternoon with a 30 percent chance for showers. Night: Mostly cloudy with a 50 percent chance for showers. Light southerly winds.

Tuesday, September 18: High: 68. Low: 52.

Day: Mostly cloudy with a 50 percent chance for showers. Light south winds. Night: Mostly cloudy with a 50 percent chance for showers and light south/southwest winds.

Note: Computer model precision diminishes the further into the week the forecast projects. Check the Fiddlehead Focus for weather updates with more current information.

The Week Ahead is the work of UMFK Professor Joseph E. Becker based on personal weather station data, various computer forecast models, and information that the National Weather Service, NOAA, and other weather resources provide.

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