Apex Weather

St. John Valley weather for Sept. 16-22, 2020

Short-Term Outlook: Wednesday – Friday

Cloudy to mostly cloudy skies are expected over Fort Kent and surrounding areas today as a warm front lifts across the region producing some isolated shower activity.  A cold front will approach and cross the Valley tonight and early Thursday with gusty south/southwest winds developing ahead of the front thanks to the pressure gradient. 

Isolated to scattered showers are expected overnight with a greater chance for showers for Fort Kent and vicinity Thursday morning as the cold front moves through. Skies clear Thursday afternoon as a strong ridge of Canadian high pressure builds east from the Upper Mississippi Valley region. High pressure will bring partly cloudy to mostly clear skies Thursday night and Friday.

Today and Tonight

Cloudy to mostly cloudy with a 30 percent chance for isolated showers. Less than 1/10-inch precipitation expected. High in the mid-60s with south/southwest winds 10 to 15 mph gusting to around 20 mph.

Overnight, mostly cloudy with a 50 percent chance for showers. Rainfall totals between 1/100 and 1/10-inch. Low in the  upper 40s with west winds in the 5 to 10 mph range.

Thursday, Sept. 17 / Constitution Day

Mostly cloudy early then partly sunny with a 30 percent chance for showers with less than 1/10-inch precipitation expected. High in the lower 60s with northwest winds 10 to 15 mph.

Thursday night, mostly clear in the evening then partly cloudy with a slight chance for precipitation. Low in the lower 30s with northwest winds near calm.

Friday, Sept. 18

Mostly clear with a slight chance for precipitation. High in the mid-50s with northwest winds 0 to 7 mph. 

Friday night, partly cloudy with a slight chance for precipitation. Low in the lower 30s. Northwest winds 0 to 7 mph.

Medium-Range: Saturday – Tuesday

High pressure will dominate the weather with mostly clear skies expected for the period and a couple of freezes Friday night and Saturday night that will likely bring an end to the outdoor growing season across the Valley.

Saturday, Sept. 19

Mostly sunny with a high in the mid-50s. Slight chance for precipitation. Northwest winds 8 to 14 mph.

Saturday night, mostly clear with a low in the low 30s to upper 20s. Slight chance for precipitation. Northwest winds 0 to 7 mph.

Sunday, Sept. 20

Mostly clear with a high in the mid-50s. Slight chance for precipitation. Northwest winds 0 to 7 mph.

Sunday night, mostly clear with a low in the lower 30s with northwest winds 0 to 7 mph.

Monday, Sept. 21

Mostly clear with a high in the lower 60s. West winds 0 to 7 mph.

Monday night, partly cloudy with a slight chance for precipitation. Low in the upper 30s with west winds 0 to 7 mph.

Tuesday, Sept. 22

Mostly clear in the morning then partly cloudy with a high in the mid-60s. Slight chance for precipitation. Northwest winds 0 to 7 mph.

Tuesday night, partly cloudy with a 20 percent chance for precipitation. Low in the upper 30s to lower 40s with northwest winds 0 to 7 mph.

Regional Long-Range Trends: Wednesday, Sep.23 – Tuesday, Sep. 29

Slightly above normal temperatures and slightly below normal 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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