Apex Weather

St. John Valley weather for Aug. 9-15

Short-Term Outlook: Wednesday – Friday

A frontal boundary will remain stalled northeast to southwest across the central portion of Maine today. Isolated to scattered shower activity will be the main feature associated with the front today. 

The front is expected to lift north as a warm front later today or this evening then move back through the state as a cold front Thursday. Showers will be likely tonight and Thursday as the front moves through with precipitation tapering off Thursday night as the front moves off shore and high pressure builds into the region from the west with cooler, drier conditions Friday and Friday night.

Today & Tonight  

Cloudy with a 60 percent chance for showers with between 1/10 and 1/4-inch expected. High in the mid-60s. Northeast winds 0 to 5 mph becoming north in the afternoon 0 to 5 mph.

Overnight, cloudy with a 70 percent chance for showers through the night. Rainfall totals between 1/4 and 1/2 inch expected. Low in the upper 40s with north to northeast winds 0 to 5 mph.

Thursday, Sept. 10
Cloudy with a 70 percent chance for showers with between 1/10 and 1/4-inch possible. High in the mid-50s with east winds 0 to 5 mp in the morning becoming northwest 5 to 10 mph in the afternoon.

Thursday night, partly cloudy with a 30 percent chance for showers. Rainfall totals less than 1/10 inch expected. Low in the lower 40s with northwest winds 0 to 7 mph.

Friday, Sept. 11

Partly cloudy in the morning then mostly clear with a slight chance for showers. High in the lower 60s with northwest winds 0 to 7 mph.

Friday night, mostly clear with a low in the upper 30s and west winds 0 to 7 mph.

Medium-Range: Saturday – Tuesday

High pressure brings sunny skies Saturday with clouds increasing Saturday night and Sunday as a cold front approaches with showers likely and a chance for thunderstorms in the afternoon and evening. The front moves through Monday with clearing skies as high pressure builds back into the region through midweek.

Saturday, Sept. 12

Mostly clear with a high in the upper 60s and southwest winds 0 to 7 mph.

Saturday night, partly cloudy with a 20 percent chance for showers. Low in the upper 40s with south winds 0 to 7 mph.

Sunday, Sept. 13

Mostly cloudy with a 70 percent chance for showers and a slight chance for afternoon thunderstorms. High in the upper 60s with south winds 8 to 14 mph.

Sunday night, mostly cloudy with a 70 percent chance for showers and a slight chance for thunderstorms. Low in the low 50s with southwest winds 0 to 7 mph.

Monday, Sept. 14

Mostly cloudy in the morning then decreasing clouds in the afternoon with a slight chance for showers in the morning. High in the lower 60s with northwest winds 8 to 14 mph.

Monday night, mostly clear with a low in the upper 30s. Northwest winds 0 to 7 mph.

Tuesday, Sept. 15

Mostly sunny with a slight chance for precipitation and a high in the low 60s. West winds 0 to 7 mph.

Tuesday night, mostly clear with a low in the upper 30s/low 40s. West/southwest winds 0 to 5 mph.

Regional Long-Range Trends: Wednesday. Sept.16 – Tuesday, Sept. 22

Slightly below normal temperatures and near 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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