St. John Valley weather, Nov. 15-21, 2023

Joseph E. Becker, Special to The County
2 weeks ago

3-day Outlook: Wednesday, Nov. 15-Friday, Nov. 17

High pressure will build in at the surface and aloft today; however, moisture aloft will keep mostly cloudy skies across the Valley into the afternoon hours. Considerable cloudiness continues tonight as a warm front followed by a cold front move across the SJV bringing a chance for scattered snow showers with little accumulation this evening. 

High pressure then builds across the region Thursday and Thursday night with mostly sunny skies Thursday and partly cloudy skies Thursday night. A warm front lifts across the region Friday with some afternoon rain showers and gusty south winds expected. Rain is expected Friday night into early Saturday as a cold front approaches from the west.

Apex Wx Daily Summary 

Today: Mostly cloudy with a high around 40. South wind 5-10 mph.

Tonight: Mostly cloudy with a low near 32. South/southwest wind around 8 mph becoming west around 6 mph.

Thursday: Partly cloudy to mostly sunny with a high around 45. West/northwest wind 8-10 mph.

Thursday night: Partly cloudy with a low near 27. Wind becoming south 0-5 mph. 

Friday: Partly sunny in the morning then becoming cloudy in the afternoon with a 30 percent chance for rain showers in the afternoon. High around 48. South wind around 10-15 mph with gusts to around 28 mph.

Friday night: Cloudy with a 90 percent chance for rain. Low near 35. Southwest wind 8-14 mph.

4- to 7-day Outlook: Saturday, Nov. 18-Tuesday, Nov. 21

An oceanic low approaches the Maritimes later Saturday; however, the track and timing are still uncertain. It looks like this system may move into the Maritimes bringing rain/snow to the Valley later Saturday into Sunday morning. Precipitation type/amounts will be determined by the low’s ultimate track.

Precipitation tapers to snow showers Sunday morning with some freezing rain possible that persist into the early afternoon before ending. High pressure builds in from the west Monday into Tuesday with partly cloudy skies and brisk northwest winds. A frontal system approaches Tuesday with some isolated snow showers possible by the afternoon hours.

Apex Wx Daily Summary

Saturday: Cloudy with a 70 percent chance for rain in the morning then rain and snow in the afternoon. High around 40. North wind 8-14 mph.

Saturday night: Mostly cloudy with a 50 percent chance for rain and snow showers. Low near 24. Northwest wind 8-14 mph.

Sunday: Party sunny with a 20 percent chance for freezing rain and snow showers in the morning tapering off in the afternoon. High around 32. West wind 8-14 mph.

Sunday night: Partly cloudy with a low near 20. Northwest wind 8-14 mph.

Monday: Partly sunny with a high around 31. Northwest wind 8-14 mph.

Monday night: Partly cloudy with a low near 16. West wind 8-14 mph.

Tuesday: Partly cloudy to mostly sunny with a high around 35. 20 percent chance for snow showers in the afternoon. Southwest wind 0-7 mph.

Tuesday night: Mostly cloudy with a 20 percent chance for snow showers. Low near 25. Southeast wind 8-14 mph.

8-to 14-day Regional Trends: Wednesday, Nov. 22-Tuesday, Nov. 28 

Below normal temperatures / Near normal precipitation

Note: Computer model precision diminishes the further into the week the forecast projects. Check The or the National Weather Service Caribou, ME at for weather updates with more current information for the Saint John Valley.

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.