St. John Valley weather for Nov. 24-30, 2021
Apex Wx Three-Day Outlook: Wednesday – Friday
High pressure centered over the Mid-Atlantic builds in today with sunny skies and clear conditions through Thanksgiving Day. Clouds increase Thursday night as low pressure approaches from the Great Lakes heading into Friday.
Snow showers are expected to overspread the Valley after midnight with snow developing Friday morning continuing through the day. Rain mixes in in the late morning to afternoon period before precipitation changes back to all snow Friday night continuing into Saturday morning before tapering to snow showers in the afternoon. Present estimates look at potential snowfall amounts in the 2 to 4-inch range with heaviest totals in western portions of northern Maine. However, speed and location of the main low pressure will influence these snowfall amounts.
Today and Tonight
Mostly cloudy early then becoming partly cloudy with a high around 33 degrees. Northwest winds at 10-12 mph. Wind chill values in the mid-to-low 20s.
Tonight, mostly clear with a low around 22 degrees. Northwest winds at 8 mph. Wind chill values in the middle 10s.
Thursday, Nov. 25 / Thanksgiving Day
Sunny in the morning then mostly sunny in the afternoon with a 5 percent chance for precipitation. High near 40 degrees with northwest winds 4-5 mph.
Thursday night, partly cloudy in the evening then becoming cloudy after midnight with a 50 percent chance for snow showers. Precipitation totals less than 0.10-inch. Low around 27 degrees. Northwest winds near calm.
Friday, Nov. 26
Cloudy with a 90 percent chance for morning snow mixing with rain late morning into the afternoon. Light accumulations expected. Precipitation totals in the 0.10 to 0.25-inch range. High around 36 degrees with northwest winds 2-3 mph.
Friday night, cloudy with a 90 percent chance for snow. Around 1-2 inches snowfall possible. Low near 26 degrees. Northwest winds 0-7 mph.
Apex Wx Outlook Days 4 to 7: Saturday – Tuesday
Snow is expected to continue into Saturday afternoon before tapering to snow showers. Snow showers linger into Sunday morning as the upper-low drifts towards Labrador. Currently, Monday looks to be mostly dry with considerable cloudiness across the SJV. Models indicate the potential for a coastal low affecting the state Monday into Tuesday; however, significant differences currently exist with the placement of the system with some models tracking it further east with little impact on the SJV while the American GFS places it further west with at least some snow across the Valley. Continued monitoring of this system will help clarify its ultimate placement as the week advances.
Saturday, Nov. 27
Cloudy with a 70 percent chance for snow tapering to snow showers in the afternoon. High near 31 degrees. West winds 8-14 mph.
Saturday night, mostly cloudy with a 30 percent chance for snow showers. Low around 21 degrees. West winds 8-14 mph.
Sunday, Nov. 28
Mostly cloudy with a 10 percent chance for snow showers tapering off by the afternoon. High around 30 degrees. West winds 8-14 mph.
Sunday night, partly cloudy with a 10 percent chance for snow showers. Low near 12 degrees. West winds 0-7 mph.
Monday, Nov. 29
Partly sunny with a 20 percent chance for snow in the afternoon. High around 28 degrees. Northwest winds 0-7 mph.
Monday night, mostly cloudy with a 20 percent chance for snow. Low around 15 degrees. Northwest winds 0-7 mph.
Tuesday, Nov. 30
Mostly cloudy with a 20 percent chance for snow tapering to snow showers then ending in the afternoon. High around 27 degrees. Northwest winds 0-7 mph.
Tuesday night, partly cloudy with a 10 percent chance for snow showers. Low near 17 degrees. Northwest winds 0-7 mph.
Climate Prediction Center
Eight- to 14-day trends: Wednesday, Dec. 1-Tuesday, Dec. 7
Near normal temperatures / 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.