St. John Valley weather for Sept. 23-29, 2020
Short-Term Outlook: Wednesday – Friday
Post-tropical cyclone Teddy is expected to cross Nova Scotia today and skirt the western shores of Newfoundland. Maine will experience little moisture from the storm with gusty northwest winds being the major feature produced by the storm’s pressure gradient as it continues to move northeast away from the Maritimes.
Fort Kent, Frenchville and their surrounding communities will see gusts in the 25 to 30 mph range with a few higher gusts possible. Relative humidity levels will drop and with the on-going drought, gusty winds and dry fuel will create elevated fire danger across the Valley today with the region at moderate risk per the Maine Forestry Service. Tonight will feature partly cloudy skies, diminished winds, and above normal low temperatures as warm air moves into the region ahead of an approaching cold front.
The front will cross the Valley Thursday afternoon with partly sunny skies developing along with a slight chance for scattered showers across the region. The front will stall out along the coast then lift back north Friday as a warm front with another slight chance for afternoon showers for Fort Kent and vicinity. A slight chance for showers continues overnight into Saturday.
Today & Tonight
Partly sunny in the morning then partly cloudy with a high in the mid-60s. Northwest winds 10 to 15 mph gusting 25 to 30 mph in Fort Kent and vicinity.
Wednesday night, partly cloudy with a slight chance for precipitation. Low in the upper 40s. Northwest winds 5 to 10 mph.
Thursday, September 24
Partly cloudy with a 20 percent chance for afternoon showers. High in the mid-60s. West winds 5 to 10 mph.
Thursday night, partly cloudy with a slight chance for showers. Low in the middle 30s with northwest winds 0 to 5 mph shifting to the west/southwest 0 to 5 mph after midnight.
Friday, September 25
Partly cloudy with a high in the middle 60s. 20 percent chance for afternoon showers. South/southwest winds 0 to 5 mph.
Friday night, partly cloudy with a 20 percent chance for showers with a low in the middle 40s. Southwest winds 0 to 7 mph.
Medium-Range: Saturday – Tuesday
Mostly cloudy skies are expected Saturday with a slight chance for showers as a cold front approaches from the west with increasing chances for shower activity across the Valley after midnight Saturday night. The front continues to approach Sunday with mostly cloudy skies and a chance for showers over the course of the day with showers becoming a steady rainfall Sunday night into Monday morning. Steady rain is expected to taper to showers as the front stalls out over eastern Maine through Tuesday. A strong low pressure pushes east from the Great Lakes Tuesday pushing the cold front east while drawing more moisture into the region and producing showers overnight into Wednesday. Current longer range models are suggesting at around 1/4-inch rainfall Sunday and around 1/4 to 1/2-inch Tuesday and Wednesday next week.
Saturday, September 26
Mostly cloudy with a high in the low 70s. Slight chance for showers. Southwest winds 0 to 7 mph.
Saturday night, partly cloudy with a 30 percent chance for showers. Low in the mid-50s with south winds 0 to 7 mph.
Sunday, September 27
Mostly cloudy with a high in the low 70s. 50 percent chance for showers becoming a steadier rain in the afternoon. South winds 8 to 14 mph.
Sunday night, partly cloudy with a 60 percent chance for rain. Low in the lower 50s with south winds 0 to 7 mph.
Monday, September 28
Mostly cloudy with a 60 percent chance for rain tapering to showers in the afternoon. High in the middle 60s with south winds 0 to 7 mph.
Monday night, mostly cloudy with a 50 percent chance for showers. Low in the low 50s with south winds 0 to 7 mph.
Tuesday, September 29
Mostly cloudy with a high in the mid-60s. 50 percent chance for showers. South winds 8 to 14 mph.
Tuesday night, mostly cloudy with a 50 percent chance for showers. Low in the low 50s with southwest winds 0 to 7 mph.
Regional Long-Range Trends: Wed. Sep.30 – Tue. Oct. 6
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.