Apex Weather

St. John Valley weather for July 4-10, 2018

High pressure will bring hot and humid weather to the Valley Independence Day and Thursday with highs in the upper 80s to low 90s across the region along with high heat indices. A warm front may produce some isolated/scattered thunderstorms Wednesday afternoon across northern Maine. Another hot and humid day Thursday ends with a cold front approaching the Valley with a chance for showers and thunderstorms Thursday night and Friday morning.

Behind the cold front, cooler temperatures and partly cloudy skies will dominate the weekend weather through Monday morning. A cold front crosses the Valley Monday night into Tuesday with a chance for some shower activity across the region.

Daily Weather Summary

Wednesday, July 4: High: 90. Low: 62.

Day: Partly/mostly cloudy, hot, humid. 30 percent chance for afternoon showers/thunderstorms. West/northwest winds 5 to 10 mph.  Night: Mostly cloudy to partly clear with west/southwest winds 5 to 10 mph.

Thursday, July 5: High: 92. Low: 68.

Day: Partly sunny, hot, and humid with a 30 percent chance for afternoon/evening showers/thunderstorms. South winds 5 to 10 mph. Night: Becoming mostly cloudy with an 80 percent chance for showers and thunderstorms. West winds 10 to 15 mph.

Friday, July 6: High: 75. Low: 50.

Day: Mostly cloudy early with a 30 percent chance for showers and thunderstorms. Becoming partly sunny in the afternoon with a chance for showers and thunderstorms. Northwest winds 10 to 15 mph. Night: Partly cloudy and cooler with northwest winds 5 to 10 mph.

Saturday, July 7: High: 70. Low: 48.

Day: Partly cloudy and mild with northwest winds 10 to 15 mph. Night: Partly cloudy to mostly clear and cool with light northwest winds.

Sunday, July 8: High: 75. Low: 58.

Day: Partly cloudy to mostly clear and mild. Light west winds. Night: Partly cloudy and mild with light southwest winds.

Monday, July 9: High: 80. Low: 61.

Day: Partly cloudy in the morning then partly sunny in the afternoon with a slight chance for showers. Southwest winds 10 to 15 mph. Night: Mostly cloudy with a 40 percent chance for showers. Light southwest winds.

Tuesday, July 10: High: 76. Low: 57.

Day: Partly cloudy with a 20 percent chance for showers. Light west winds. Night: Partly cloudy with a slight chance for showers. South winds 0 to 5 mph.

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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