St. John Valley weather for Oct. 7-13, 2020
Short-Term Outlook: Wednesday – Friday
A weak trough moved through the area overnight with some scattered shower activity across the Valley.
Cloudy skies with a chance for showers this morning into the afternoon will see increasing chances for rain as an Alberta-clipper type low-pressure area moves east from the Great Lakes and brings rain to the region later this afternoon into the overnight hours as the low moves through. Around one-half inch rainfall is expected across the area as this system moves through. Winds will pick up after midnight as the low moves into the Maritimes and deepens and a strong pressure gradient developing between it and an incoming ridge of high pressure centered over the Midwest and moving into the Ohio Valley by Thursday night.
Wind gusts in the 30 to 40 mph range with some locally higher gusts possible are expected Thursday. Skies become partly cloudy Thursday and mostly clear Thursday night with high pressure drawing cold Canadian air into the region. Winds will remain breezy overnight into Friday with wind chill values dipping into the lower 20s for Fort Kent and surrounding areas. Partly cloudy and breezy conditions are expected Friday with highs only reaching into the upper 40s to near 50°F in Fort Kent and vicinity. A warm front approaches form the southwest in the evening with a chance for showers overnight.
Today & Tonight
Cloudy with a 90 percent chance for rain with between 0.25 and 0.5-inch expected. High in the upper 50s with south winds 5 to 10 mph.
Overnight, mostly cloudy with a 90 percent chance for rain in the evening tapering to showers after midnight. Rainfall amounts in the 0.10 to 0.25-inch range anticipated. Low in the upper 30s/low 40s. Northwest winds increasing to 10 to 15 mph after midnight with gusts 25-35 mph in Fort Kent and Frenchville.
Thursday, October 8
Partly cloudy and windy with a 10% chance for showers, mainly in the morning. High in the upper 40s with gusty northwest winds 15 to 20 mph gusting 30 to 40 mph with locally higher gusts possible.
Thursday night, mostly clear and breezy with a 5 percent chance for precipitation. Low in the upper 20s/lower 30s. Northwest winds 8 to 14 mph.
Friday, October 9
Mostly clear with a high in the upper 40s. 10 percent chance for precipitation. West winds 10 to 15 mph.
Friday night, partly cloudy with an 80 percent chance for showers. Low in the middle 30s. Southwest winds 0 to 7 mph.
Medium-Range: Saturday – Tuesday
Cloudy skies develop Saturday as a warm front lifts across the region. The warm front crosses the Valley Saturday with rain likely over the course of the day. Partly cloudy skies develop Saturday night with a chance for showers as a cold front moves through overnight with showers possibly mixing with some snow showers after midnight. High pressure north of the Great Lakes builds east with partly cloudy skies and breezy winds Sunday and moves across the region Sunday night and Monday with mostly clear skies.
Partly cloudy skies develop Monday afternoon as the high pressure moves into the Maritimes. An approaching front from the west brings increased cloudiness Tuesday with morning rain/snow showers followed by some scattered showers Tuesday afternoon. Longer-range models indicate that some moisture from the remnants of Delta may reach New England around Tuesday; however, agreement is not strong at this time among the various models concerning this feature.
Saturday, October 10
Cloudy with an 80 percent chance for rain. High in the upper 50s with southwest winds 8 to 14 mph.
Saturday night, becoming partly cloudy with a 40 percent chance for showers possibly mixing with snow showers after midnight. Low in the mid-30s with northwest winds 0 to 7 mph.
Sunday, October 11
Partly sunny in the morning then partly cloudy with a 10 percent chance for morning rain/snow showers. High in the upper 40s/low 50s with northwest winds 8 to 14 mph.
Sunday night, mostly clear with a 5 percent chance for precipitation. Low in the mid-20s with northwest winds 0 to 7 mph.
Monday, October 12 / Indigenous Peoples’ Day
Mostly clear in the morning then partly cloudy with a 10 percent chance for precipitation. High in the lower 50s with northwest winds 0 to 7 mph.
Monday night, partly cloudy with a 20 percent chance for rain/snow showers after midnight. Low in the lower 30s with southeast winds 0 to 7 mph.
Tuesday, October 13
Partly cloudy in the morning then partly sunny with a 20 percent chance for showers. High in the upper 50s with south winds 0 to 7 mph.
Tuesday night, partly-to-mostly cloudy with a 20 percent chance for precipitation. Low in the mid-30s with south winds 0 to 7 mph.
Regional Long-Range Trends: Wed. Oct. 14 – Tue. Oct. 20
Above normal temperatures and precipitation
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.