St. John Valley weather for Sept. 5-11, 2018

A warm front will lift across the region Wednesday morning with a slight chance for showers and thunderstorms. A cold front will move through overnight Wednesday into Thursday with a chance for showers and thunderstorms that taper off Thursday morning. High pressure builds in Thursday through Sunday with partly cloudy to mostly clear skies and cool, mild conditions. Overnight lows will be crisp, especially Saturday night when some areas of frost are possible. A low-pressure system brings a chance for showers Monday into Tuesday with skies clearing later Tuesday.

Daily Weather Summary

Wednesday, September 5: High: 80. Low: 60.

Day: Mostly cloudy with a slight percent chance for showers and thunderstorms. South/southwest winds 10 to 15 mph. Night: Mostly cloudy with a 60 percent chance for showers/thunderstorms. Rainfall totals between one-tenth and one-quarter inch. South/southwest winds 5 to 10 mph.

Thursday, September 6: High: 68. Low: 48.

Day: Clearing in the morning with partly cloudy skies in the afternoon. A 40 percent chance for showers early with less than one-tenth inch expected. Northwest winds 5 to 10 mph. Night: Partly cloudy and cool with light northwest winds.

Friday, September 7: High: 67. Low: 39.

Day: Mostly clear with breezy northwest winds. Night: Mostly clear and cool with light northwest winds.

Saturday, September 8: High: 61. Low: 36.

Day: Mostly clear with breezy northwest winds. Night: Mostly clear and cold with areas of frost possible. Light northwest winds.

Sunday, September 9: High: 65. Low: 43.

Day: Mostly clear and mild with light southwest winds. Night: Mostly clear early then partly cloudy. Light southeast winds.

Monday, September 10: High: 65. Low: 45.

Day: Partly sunny with a 40 percent chance for showers. Breezy south winds. Night: Cloudy with a chance for showers. Light southeast winds.

Tuesday, September 11: High: 70. Low: 54.

Day: Mostly cloudy with morning showers tapering off towards midday. Clearing in the afternoon. Light southwest winds. Night: Partly cloudy early then mostly clear with light northwest 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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