St. John Valley weather for April 12-18, 2023

3-Day Outlook: Wednesday, April 12-Friday, April 14 

An area of low pressure is tracking to the southeast across the Canadian Maritimes this morning and brought some light precipitation to the Valley yesterday afternoon into the overnight hours. The system will slide away today while high pressure builds back into the region. Gusty northwest winds are expected today before subsiding overnight. Partly cloudy skies build across the region overnight.

Partly cloudy skies and light winds are expected Thursday with increased cloudiness Thursday night as a weak backdoor cold front drops across the Saint John Valley. Gusty northwest winds are expected overnight into Friday. A large upper-level high pressure ridge will spread across the eastern U.S. with warm, dry conditions for the region Friday into Saturday.

The National Weather Service in Caribou indicates that ice movement and potential ice jams become increasingly likely through the weekend into next week. This includes the Aroostook and St John Rivers. Ice jams can cause rapid flooding, affecting roads and structures in low-lying areas along these rivers.

Daily Summary

Today: Isolated showers before 8 a.m. Mostly cloudy, with a high near 49. Breezy, with a northwest wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 20 percent.

Tonight: Partly cloudy, with a low around 27. Northwest wind 5 to 9 mph.

Thursday: Mostly sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the afternoon.

Thursday Night: Mostly cloudy, with a low around 39. Northwest wind around 9 mph.

Friday: Mostly sunny, with a high near 57. Northwest wind around 9 mph, with gusts as high as 22 mph.

Friday Night: Partly cloudy, with a low around 31. Northwest wind around 6 mph becoming calm in the evening.

4- to 7-Day Outlook: Saturday, April 15-Tuesday, April 18

High pressure remains across the region Saturday into Sunday morning then moves east Sunday. Low pressure tracking from the Great Lakes towards James Bay in Canada will pull a cold front east bringing increasing clouds Sunday afternoon along with a chance for rain showers Sunday night into Monday morning. Showers are likely Monday afternoon and Monday night. Low pressure associated with the cold front may become cut off and persist over eastern Canada early next week, so a chance for showers continues Tuesday.

Daily Summary

Saturday: Partly sunny, with a high near 59. Northeast wind 3 to 5 mph.

Saturday Night: Partly cloudy, with a low around 33.

Sunday: A chance of showers, mainly after noon. Partly sunny, with a high near 60. Chance of precipitation is 30 percent.

Sunday Night: A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 40 percent.

Monday: A chance of showers. Mostly cloudy, with a high near 54. Chance of precipitation is 50 percent.

Monday Night: Showers likely. Cloudy, with a low around 38. Chance of precipitation is 60 percent.

Tuesday: A chance of showers. Mostly cloudy, with a high near 51. Chance of precipitation is 50 percent.

Tuesday Night: A chance for showers. Mostly cloudy, with a low near 36. Chance for precipitation 40 percent.

8- to 14-Day Trends: Wednesday, April 19-Tuesday, April 25

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.