St. John Valley weather for April 26-May 2

3-Day Outlook: Wednesday, April 26-Friday, April 28

Blocking high pressure remains to the east of the region as an upper-trough slowly approaches today and crosses the region Thursday. Today will feature morning drizzle and a chance for scattered showers, mainly in the morning with some isolated showers activity this afternoon. 

Partly cloudy skies develop tonight with isolated showers possible after midnight. Partly sunny skies are expected Thursday with a chance for scattered afternoon showers as the trough moves through. Skies finally clear Thursday night as the trough moves east and high pressure builds into the region. Mostly sunny skies are expected Friday as high pressure builds across the Saint John Valley. Partly cloudy skies develop Friday night.

High temperatures low-to-mid-50s today and mid-30s tonight, upper 50s Thursday and mid-30s Thursday night, and the mid-60s and middle 30s Friday night.

Daily Summary

Today: Patchy drizzle with scattered showers before noon, then scattered showers, mainly between noon and 1 p.m. Mostly cloudy, with a high near 54. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 50 percent. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Mostly cloudy, with a low around 34. Calm wind.

Thursday: A chance of showers, mainly after 2 p.m. Partly sunny, with a high near 59. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 30 percent.

Thursday Night: Mostly clear, with a low around 34. North wind around 5 mph becoming calm in the evening.

Friday: Sunny, with a high near 65. North wind 3 to 7 mph.

Friday Night: Partly cloudy, with a low around 37. Calm wind.

4- to 7-day Outlook: Saturday, April 29-Tuesday, May 2

Clouds increase Saturday as an occluded front ahead of an upper-level low over the Great Lakes slowly moves towards the region as high pressure drifts east of the region. Mostly cloudy skies with a chance for scattered showers develops Sunday, mainly in the afternoon with a chance for showers persisting Sunday night into Monday.  

By Monday, the upper high to the east breaks down allowing the occlusion to approach while another low forms off the Mid-Atlantic coast helping carry a deep channel of moisture northward. This has the potential to bring a soaking rain Monday into Monday night as the new low and the occlusion lifts north. Rain is expected to continue Tuesday as the occlusion stalls out and weakens over the state.

Daily Summary

Saturday: Mostly cloudy, with a high near 63. Southeast wind 6 to 10 mph.

Saturday Night: A slight chance of showers after 2 a.m. Mostly cloudy, with a low around 40. Chance of precipitation is 20 percent.

Sunday: A chance of showers, mainly after 8 a.m. Mostly cloudy, with a high near 54. Chance of precipitation is 30 percent.

Sunday Night: A chance of showers. Mostly cloudy, with a low around 39. Chance of precipitation is 50 percent.

Monday: Rain likely. Mostly cloudy, with a high near 54. Breezy. Chance of precipitation is 70 percent.

Monday Night: Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70 percent.

Tuesday: Rain likely. Mostly cloudy, with a high near 52. Chance of precipitation is 60 percent.

Tuesday Night: Mostly cloudy with a chance for showers. Low near 38. Chance of precipitation is 40 percent.

8- to 14-day Trends: Wednesday, May 3-Tuesday, May 9

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.