3-Day Outlook: Wednesday, Aug. 30-Friday, Sept. 1
A cold front along with an associated upper-level trough and surface low pressure will cross the region today with rain likely through the day. Rainfall amounts in the half to three-quarter inch range are anticipated as rich tropical moisture is drawn from the Atlantic over the northeast U.S. Locally heavy rain is expected today with the approaching cold front, and isolated flooding in urban areas and small streams is possible.
Rain will taper to showers this evening with decreasing cloudiness. Less than 1/10th inch of rainfall is possible this evening before precipitation winds down by midnight. A ridge of high pressure over the Great Lakes will begin to build in tonight with showers diminishing by midnight and partly cloudy skies developing overnight. Today’s high is expected in the mid to upper 60s with a low in the middle 40s tonight.
High pressure over the Great Lakes will build in Thursday with partly cloudy skies and breezy northwest winds gusting up to around 27 mph. Clear skies are expected Thursday night with light winds with some patchy fog possible. Daytime temperatures reach the middle 60s with an overnight low in the lower 40s.
Meteorological autumn (the period of September, October and November for record keeping) will begin Friday with sunny skies and mild conditions expected. Mostly clear skies will overspread the Valley Friday night into Saturday morning. Friday’s high will top out in the low 70s with an overnight low in the lower 50s.
National Weather Service Daily Forecast Summary
Today: Scattered showers before 9 a.m., then rain, mainly after 9 a.m. Patchy fog before noon. High near 68. South wind 3 to 5 mph. Chance of precipitation is 90 percent. New precipitation amounts between a quarter and half of an inch possible.
Tonight: Rain before 11 p.m., then scattered showers between 11 p.m. and 3 a.m. Low around 46. Northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80 percent. New precipitation amounts between a quarter and half of an inch possible.
Thursday: Sunny, with a high near 65. Northwest wind 11 to 15 mph, with gusts as high as 28 mph.
Thursday Night: Patchy fog after 3 a.m. Otherwise, mostly clear, with a low around 40. West wind 3 to 7 mph.
Friday: Patchy fog before 9 a.m. Otherwise, sunny, with a high near 73. West wind 5 to 8 mph.
Friday Night: Patchy fog after 3 a.m. Otherwise, mostly clear, with a low around 53. Southwest wind 3 to 6 mph.
4- to 7-Day Outlook: Saturday, Sept. 2-Tuesday, Sept. 5
High pressure moves east of the region Saturday with a weak cold front approaching later in the day. Little moisture is associated with this system and only isolated showers, if any occur, are expected after midnight Saturday night into early Sunday. Highs in the mid-70s with lows in the lower 60s are expected.
The cold front moves east of the region as the day progresses Sunday with mostly sunny skies across the SJV. Mostly clear skies are expected Sunday night. Daytime highs reach the upper 70s with overnight lows in the lower 60s.
Labor Day, mostly sunny skies and warm conditions are expected across the SJV with highs in the mid-80s and light winds. Monday night, mostly clear skies with lows in the lower 60s across the region.
Tuesday, sunny skies with highs in the middle 80s once more will be followed by mostly clear skies Tuesday night with lows falling into the lower 60s.
Daily Forecast Summary
Saturday: Patchy fog before 10 a.m. Otherwise, mostly sunny, with a high near 76. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Saturday Night: A slight chance of showers after 9 p.m. Mostly cloudy, with a low around 60. Chance of precipitation is 20 percent.
Sunday: Mostly sunny, with a high near 78.
Sunday Night: Partly cloudy, with a low around 60.
Labor Day: Sunny, with a high near 85.
Monday Night: Mostly clear, with a low around 63.
Tuesday: Sunny, with a high near 86.
Tuesday Night: Mostly clear, with a low around 61.
8- to 14-Day Trends: Wednesday, Sept. 6-Tuesday, Sept. 12
Source: Climate Prediction Center
Above normal temperatures / Near normal precipitation
Note: Computer model precision diminishes the further into the week the forecast projects. Check The County.me or the National Weather Service, Caribou 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.
