3-Day Outlook: Wednesday, March 26 – Friday, March 28
Weak upper-level high pressure Wednesday morning will move east with an upper-level trough approaching from the west as the day progresses. Plenty of clouds will overspread the Saint John Valley Wednesday morning with the trough moving through tonight into Thursday morning. This will produce instability this afternoon with a chance of scattered convective rain and snow showers this afternoon into the evening hours with a chance of snow tonight as the trough crosses the SJV.
A chance of snow showers persists into early Thursday before precipitation ends as the upper trough moves away to the east. High pressure builds in as the day progresses with decreasing clouds across the area. Partly cloudy skies are expected Thursday night with a chance of snow after midnight as a cold front approaches and crosses the region early Friday. Snow tapers off by Friday afternoon as a new ridge of high pressure moves in with little accumulation anticipated, if any. Partly cloudy skies, cold conditions, with light northwest winds are expected Friday night.
Daily Summary
Today: Mostly cloudy. Isolated snow showers this morning, then scattered snow showers with isolated rain showers this afternoon. Snow accumulation around an inch possible. Highs in the lower 40s. Southwest winds around 5 mph. Chance of precipitation 40 percent.
Tonight: Mostly cloudy. Scattered snow showers in the evening, then a chance of snow after midnight. Patchy fog after midnight. Lows in the lower 20s. Northwest winds around 5 mph. Chance of snow 40 percent.
Thursday: Patchy fog in the morning. Mostly cloudy with a 20 percent chance of snow showers. Highs in the upper 30s. Northwest winds 5 to 10 mph with gusts up to 20 mph.
Thursday Night: Mostly clear in the evening, then partly cloudy with a slight chance of snow showers after midnight. Lows in the lower 20s. West winds 5 to 10 mph. Chance of snow 20 percent.
Friday: Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of snow showers. Highs in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph.
Friday Night: Partly cloudy. Lows around 10 above.
4- to 7-Day Outlook: Saturday, March 29 – Tuesday, April 1
High pressure builds in Saturday with partly sunny skies and light northwest winds expected. A chance of snow develops Saturday afternoon with little, if any, accumulations currently anticipated. Isolated snow showers linger overnight into early Sunday.
Sunday, low pressure tracking from the Plains into the Great Lakes region will bring increased cloudiness to the Valley with a chance of snow expected to develop Sunday afternoon and continue Sunday night.
Forecast models are not in agreement with the potential impact of this system on the region with regards to precipitation types and amounts. Presently, snow is likely Monday morning with a chance of rain/snow Monday afternoon tapering to snow showers Monday night. Snow showers taper off early Tuesday as high pressure builds down from west/central Ontario.
Daily Summary
Saturday: Mostly cloudy with a 40 percent chance of snow. Highs around 30.
Saturday Night: Partly cloudy. A chance of snow in the evening. Lows 10 to 15. Chance of snow 40 percent.
Sunday: Partly sunny in the morning, then becoming mostly cloudy. A 50 percent chance of snow. Highs in the lower 30s.
Sunday Night: A chance of snow in the evening, then snow likely after midnight. Lows in the lower 20s. Chance of snow 60 percent.
Monday: Mostly cloudy. Snow likely with a chance of freezing rain in the morning, then a chance of snow and rain in the afternoon. Highs in the mid 30s. Chance of precipitation 60 percent.
Monday Night: Mostly cloudy with a chance of snow showers in the evening, then partly cloudy after midnight. Lows 15 to 20. Chance of snow 50 percent.
Tuesday: Partly sunny. Highs in the lower 30s.
Tuesday Night: Mostly clear. Lows in the lower 10s.
8- to 14-Day Regional Climate Trends: Wednesday, April 2 – Tuesday, April 8
Near normal temperatures / Above 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, 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.