Apex Weather

St. John Valley weather for April 29-May 5, 2020

Short-Term Outlook: Wednesday – Friday

1031-millibar high pressure centered over northern Québec/western Labrador this morning will continue to bring mostly clear skies to the Valley today.

Skies will become partly cloudy tonight with increasing clouds Thursday morning and cloudy skies by the afternoon as a low-pressure system tracks towards the region from the Great Lakes Thursday into Friday. Rain showers are expected to overspread the region by Thursday afternoon and continue through Friday morning. An occluded front associated with the system will bring steadier rainfall to the Valley Friday afternoon into the overnight hours before tapering to rain showers after midnight Friday night.


Today & Tonight

Mostly clear and mild with a high near 58 degrees F. East/northeast winds 5 to 10 mph become east/southeast near 5 mph.


Tonight, partly cloudy with a slight chance for precipitation. Low near 33 degrees F. Southeast winds near 5 mph.


Thursday, April 30

Mostly cloudy in the morning then cloudy in the afternoon with a 30 percent chance for showers. Precipitation totals less than 1/10 inch. High near 52 degrees F with south winds 10 to 15 mph.


Thursday night, cloudy with a 30 percent chance for rain with less than 1/10 inch expected. Low near 40 with south winds 5 to 10 mph.


Friday, May 1

Cloudy with a 90 percent chance for showers becoming a steady rain in the afternoon with between 1/10- and 1/4-inch precipitation expected. High 53 degrees with south/southeast winds 10 to 15 mph.


Friday night, cloudy with an 80 percent chance for rain tapering to showers after midnight. Low near 44 degrees F. East winds 0 to 7 mph.


Medium-Range: Saturday – Tuesday

Unsettled weather will keep considerable cloudiness and a chance for showers in the forecast through early next week. High pressure will weakly push into the region Saturday with mostly cloudy skies and rain showers continuing into Saturday night. An occluding low-pressure system approaches Sunday and moves through Monday with showers becoming a steadier rain Sunday night and continuing Monday into Tuesday morning with some snow possibly mixing in Tuesday morning. Rain tapers to showers Tuesday afternoon/evening.


Medium Range High/Low Temperatures

  • Sat. May 2: mid-50s / mid-30s
  • Sun. May 3: upper 50s / mid-30s
  • Mon. May 4: low 50s / mid-30s
  • Tue. May 5: mid-40s / mid-30s

Regional Long-Range Trends Wed. May 6 – Tue. May 12

Below normal temperatures and above 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.

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