St. John Valley weather for Oct. 12-18, 2022
3-day outlook: Wednesday-Friday
Mostly sunny skies today as an upper-level ridge of high pressure moves across the region, which will give way to increased cloudiness in the evening as a cold front associated with a strong area of low pressure near James Bay in Canada approaches from the west.
Southerly flow along and ahead of the approaching front will channel plenty of moisture over the Valley along with a deep upper-level trough associated with the surface cold front that will also be approaching from the west. Partly cloudy skies will develop tonight with partly sunny and breezy south winds Thursday.
Clouds will increase Thursday evening along with chances for showers with rain likely after midnight as the upper trough and surface cold front move east towards Maine. Rain is likely Friday along with gusty southeast winds across the St. John Valley. Rain will continue Friday night as the cold front moves across the region. Rainfall totals in the 1- to 2-inch range are possible from this system, based on current data, with locally higher totals possible.
Today and tonight
Mostly sunny with a high near 67 degrees. Southwest wind 6-11 mph.
Tonight, partly cloudy with a low near 44 degrees. South wind 4-5 mph.
Thursday, Oct. 13
Partly sunny with a high near 65 degrees. South wind 10-12 mph gusting to 23 mph.
Thursday night, becoming mostly cloudy with an 80 percent chance for showers in the evening then rain overnight. Rainfall totals less than 1/10th inch expected. Low near 54 degrees. Southeast wind 10-13 mph gusting to 30 mph.
Friday, Oct. 14
Cloudy with a 100 percent chance for rain. Rainfall totals in the quarter- to half-inch range expected. High around 64 degrees. Southeast wind around 13 mph gusting to 30 mph.
Friday night, cloudy with a 100 percent chance for rain. Low near 53 degrees. Southeast wind 0-7 mph.
4- to 7-day: Saturday-Tuesday
A large upper-level trough/cut-off low will circulate over the region through the period. Rain Saturday morning will taper to showers in the afternoon as the surface cold front moves into the Maritimes. Showers will persist Saturday night with partly cloudy skies and a slight chance for showers Sunday and Sunday night. Clouds will increase Monday as another frontal system approaches from the Great Lakes with showers Monday afternoon into the overnight hours. Rain is likely Tuesday as the front moves across the region.
Saturday, Oct. 15
Mostly cloudy with a 70 percent chance for rain in the morning then showers in the afternoon. High around 63 degrees. West wind 0-7 mph.
Saturday night, partly cloudy with a 40 percent chance for showers. Low near 42 degrees. Southwest wind 0-7 mph.
Sunday, Oct. 16
Partly cloudy with a 20 percent chance for showers. High around 61 degrees. Southwest wind 0-7 mph.
Sunday night, partly cloudy with a 20 percent chance for showers. Low near 40 degrees. Northwest wind 0-7 mph.
Monday, Oct. 17
Partly sunny early then becoming mostly cloudy with a 40 percent chance for showers, mainly in the afternoon. High around 58 degrees. Southeast wind 0-7 mph.
Monday night, mostly cloudy with a 60 percent chance for showers. Low near 44 degrees. Southeast wind 0-7 mph.
Tuesday, Oct. 18
Mostly cloudy with a 60 percent chance for rain. High near 58 degrees. Southeast wind 0-7 mph.
Tuesday night, mostly cloudy with a 50 percent chance for rain. Low near 44 degrees. South wind 0-7 mph.
8- to 14-day trends: Wednesday, Oct. 19-Tuesday, Oct. 25
Above 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.