St. John Valley weather for July 3-9, 2019
ST. JOHN VALLEY, Maine — An upper-level ridge of high pressure is building east with surface high pressure centered over the Great Lakes this morning. A weak trough aloft in the eastern portions of the state may allow for some isolated thunderstorms this afternoon and some scattered shower activity. Tonight will be mostly clear with partly cloudy skies expected Thursday afternoon and evening. A cold front approaches later Friday with a chance for showers/thunderstorms across the Valley. Mostly cloudy to partly sunny skies are expected Saturday as the cold front moves through. A new ridge of high pressure builds in Sunday through Tuesday with a cold front bringing a slight chance for showers Tuesday afternoon and evening.
Daily Weather Summary
Wednesday, July 3
Partly cloudy with a 20 percent chance for showers and isolated thunderstorms. Northwest wind 0 to 5 mph with afternoon gusts around 10 to 15 mph possible. Tonight, mostly clear with a low in the mid-50s. West wind near calm.
Thursday, July 4
Mostly clear in the morning then partly cloudy, hot, and somewhat humid in the afternoon with a high near 90F. West/northwest wind around 5 mph. Tomorrow night, partly cloudy and humid with a slight chance for showers. Low in the mid-60s with west winds 0 to 5 mph.
Friday, July 5
Partly cloudy, hot, and humid with a high in the middle 80s and a 20 percent chance for afternoon/evening showers/thunderstorms. Friday night, partly cloudy with a 60 percent chance for showers and thunderstorms. Low in the mid-60s with southwest winds 0 to 7 mph.
Saturday, July 6
Mostly cloudy to partly sunny with a 50 percent chance for showers and thunderstorms. High in the mid-70s with northwest winds 8 to 14 mph. Saturday night, Mostly clear with a slight chance for showers. Low in the lower 50s with light northwest winds.
Sunday, July 7
Mostly clear with a high in the mid-70s. Slight chance for precipitation. Northwest winds 8 to 14 mph. Sunday night, mostly clear with a low in the mid-50s. Light west winds.
Monday, July 8
Partly cloudy with a high in the middle 70s. Slight chance for precipitation. West wind 8 to 14 mph. Monday night, partly cloudy with a slight chance for precipitation. Low in the mid-50s with light west winds.
Tuesday, July 9
Partly cloudy with a 20 percent chance for afternoon/evening showers. High in the mid-70s with west winds 8 to 14 mph. Tuesday night, partly cloudy with a chance for showers. Low in the mid-50s. Light west wind.
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.