Apex Weather

St. John Valley weather for Oct. 14-20, 2020

Short-Term Outlook: Wednesday – Friday

Low pressure will track across New Brunswick this morning and exist the Maritimes this afternoon, tracking west of Newfoundland. Rain will taper to showers this morning with most of the activity concentrated in the eastern portion of the Valley. 

Skies will become partly cloudy this evening as high pressure south of the region builds in behind the departing upper trough associated with the system. Partly cloudy skies and breezy south winds are expected Thursday as return flow around high pressure to the east brings relatively mild southerly air into the region. Mostly cloudy skies with a chance for showers develop Thursday night  with overcast skies and showers Friday as a cold front crosses the region and stalls out in the central/eastern portion of the region. Rain is anticipated Friday night as a low pressure area tracks along the stalled frontal boundary.

Today & Tonight

Overcast to mostly cloudy in the morning with decreasing clouds in the afternoon with a 60 percent chance for showers. Precipitation totals around 0.10-inch expected. High in the middle 50s. West winds 5 to 10 mph with gusts to around 15 to 20 mph possible.

Overnight, partly cloudy to mostly clear with a 10 percent chance for precipitation. Areas of fog possible. Low in the upper 30s with west/southwest winds 0 to 5 mph.

Thursday, Oct. 15
Partly cloudy to mostly clear with a 10 percent chance for precipitation. High in the low 60s with south winds 10 to 15 mph with gusts to around 25 mph in Fort Kent.

Thursday night, mostly cloudy with a 20 percent chance for showers. Low in the low 50s. South winds 8 to 14 mph dropping to 5 to 10 mph after midnight.

Friday, Oct. 16
Cloudy with a 60 percent chance for showers. High in the mid-50s with south winds 0 to 5 mph becoming east/southeast in the afternoon.

Friday night, cloudy with a 90 percent chance for rain. Low in the mid-40s with southeast winds 0 to 7 mph.

Medium-Range: Saturday – Tuesday

Rain is likely Saturday as low pressure moves along a stalled cold front over the region. Rain continues through Saturday night before mixing with snow early Sunday before tapering off. Partly cloudy to partly sunny skies are expected Sunday afternoon with a chance for showers developing later in the day. Sunday night through Tuesday will feature considerable cloudiness and a chance for showers as a series of quick moving disturbances cross the region in the flow aloft.

Saturday, Oct. 17

Cloudy with a 100 percent chance for rain. High in the low 50s with north winds 0 to 7 mph.

Saturday night, cloudy with a 60 percent chance for rain possibly mixing with snow after midnight. Low in the mid-30s. West winds 8 to 14 mph.

Sunday, Oct. 18

Partly sunny to partly cloudy in with a 40 percent chance for a rain/snow in the morning tapering to showers. High in the low 50s with south winds 0 to 7 mph.

Sunday night, becoming mostly cloudy with a 40 percent chance for showers. Low in the upper 30s with south winds 8 to 14 mph.

Monday, Oct. 19

Considerable cloudiness with a 40 percent chance for showers. High in the low 50s with southwest winds 0 to 7 mph.

Monday night, mostly cloudy to cloudy with a 50 percent chance for showers. Low in the mid-30s with south winds 0 to 7 mph.

Tuesday, Oct. 20

Cloudy in the morning then mostly cloudy in the afternoon with a 50 percent chance for showers. High in the low 50s with south winds 0 to 7 mph.

Tuesday night, mostly cloudy with a 30 percent chance for showers, possibly mixing with snow aftern midnight. Low in the mid-to-upper 30s with west/northwest winds 0 to 7 mph.

Regional Long-Range Trends: Wed. Oct. 21 – Tue. Oct. 27

Slightly 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.

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