St. John Valley weather, March 29-April 4, 2023
3-day outlook: Wednesday, March 29-Friday, March 31
High pressure building across the region this morning will move east this afternoon. A strong cold front trailing from a low in Canada will approach tonight and cross overnight into early Thursday morning.
Gusty winds will develop as the front sweeps through with a quick 1-3 inches of snow across the SJV with highest totals along the Route 1 corridor along the New Brunswick border. Gusty winds peaking in the 25-35 mph range across northern Maine will create areas of blowing snow over the course of the day Thursday.
Snow ends by Thursday evening with partly cloudy skies overspreading the Saint John Valley Thursday night. Partly cloudy skies Friday morning give way to increasing clouds in the afternoon as an area of low pressure approaches from the Northern Plains region. The low is expected to track in to Canada to our northwest with snow overspreading the Valley after midnight.
Today: Mostly sunny, with a high near 41. Southwest wind 3 to 6 mph.
Tonight: Snow showers likely, mainly after 5 a.m. Increasing clouds, with a low around 21. Southeast wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60 percent. New snow accumulation of less than one inch possible.
Thursday: Snow showers, mainly before 1 p.m. Patchy blowing snow. High near 31. West wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80 percent. New snow accumulation of 1 to 2 inches possible.
Thursday Night: A slight chance of snow showers before 10 p.m. Mostly cloudy, with a low around 15. Northwest wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20 percent.
Friday: Mostly sunny, with a high near 38. Northwest wind 7 to 9 mph.
Friday Night: A chance of snow, mainly after midnight. Cloudy, with a low around 26. South wind 6 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 40 percent.
4- to 7-day outlook: Saturday, April 1-Tuesday, April 4
Low pressure tracks to the northwest Saturday with snow in the morning mixing with then changing to all rain in the afternoon and evening. Rain mixes with snow overnight before tapering to snow showers and ending Sunday morning. One question is whether a coastal low develops (according to some models), which will affect precipitation types and intensity. The storm system will track to our northeast Sunday and deepen producing blustery conditions across the County.
Mostly clear skies later Sunday into Sunday evening become partly cloudy overnight into Monday morning. A clipper system approaches later Monday producing some snow showers Monday afternoon into Tuesday morning. Partly cloudy skies develop Tuesday afternoon as high pressure builds into the region for the midweek period.
Saturday: Snow before noon, then rain and snow between noon and 2 p.m., then rain after 2 p.m. Patchy fog after 1 p.m. High near 44. Southeast wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100 percent.
Saturday Night: Rain before 10 p.m, then rain likely, possibly mixed with snow showers between 10 and 11 p.m., then snow showers likely after 11 p.m. Patchy fog before 7 p.m. Low around 17. Chance of precipitation is 80 percent.
Sunday: A slight chance of snow showers before 9 a.m. Mostly sunny, with a high near 30. Blustery. Chance of precipitation is 20 percent.
Sunday Night: Partly cloudy, with a low around 13.
Monday: A chance of snow showers. Partly sunny, with a high near 38. Chance of precipitation is 30 percent.
Monday Night: A chance of snow showers. Mostly cloudy, with a low around 22. Chance of precipitation is 30 percent.
Tuesday: Mostly sunny, with a high near 38.
8- to 14-day trends: Wednesday, April 5-Tuesday, April 11
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.