Apex Weather

St. John Valley weather for March 3-9, 2021

Short-Term Outlook: Wednesday – Friday

Deep low pressure near Newfoundland will keep breezy conditions across the SJV today and tonight as it interacts with high pressure building down from the northwest. 

The low will back into Labrador by Thursday and strengthen with west/northwest winds becoming gusty once more, though not as intense as Tuesday. Moisture circulating around the system will move across the Valley producing plenty of clouds Thursday and Thursday night along with snow showers across the region. Clouds will thin somewhat on Friday; however, moisture will continue to move across the area keeping a chance for snow showers Friday and Friday night along with continued breezy west winds.

Today & Tonight

Partly cloudy to mostly sunny with a high near 23 degrees. Chance for precipitation 5 percent. Northwest winds 15 to 20 mph gusting 25 to 30 mph.

Wednesday night, mostly clear with a low around 3 degrees. Northwest winds around 5 to 10 mph increasing to 10 to 15 mph after midnight.

Thursday, March 4

Mostly cloudy with a 40 percent chance for snow showers. Precipitation totals less than 1/10 inch with little/no snow accumulation expected. High around 17 degrees. Northwest winds 15 to 20 mph gusting 25 to 30 mph.

Thursday night, cloudy with a low near 0 degrees. 40 percent chance for snow showers. Precipitation totals less than 1/10 inch with little/no snow accumulation expected. Northwest winds 15 to 20 mph with gusts 25 to 30 mph shifting to the west/northwest after midnight 10 t0 15 mph. 

Friday, March 5
Partly sunny with a 40 percent chance for snow showers. Precipitation totals less than 1/10 inch with little/no snow accumulation expected. High around 17 degrees with northwest winds 10 to 15 mph gusting 20 to 25 mph.

Friday night, partly cloudy with a 40 percent chance for snow showers. Low around 4 degrees. West winds 5 to 10 mph.

Medium-Range: Saturday – Tuesday

Low pressure will remain near the mouth of the Saint Lawrence Saturday with breezy conditions and snow showers across the Valley. The low begins to move away Saturday afternoon with winds diminishing overnight into Sunday. Canadian high pressure drops down from the Hudson Bay Saturday night and moves in the Southeast US by Sunday night bringing partly cloudy skies and dry conditions to the region through the first part of next week. A weak trough moving in from the west will bring some increased cloudiness to the Valley Tuesday.

Saturday, March 6
Partly sunny with a high around 22 degrees. West winds 5 to 10 mph.

Saturday night, partly cloudy with a low around 4 degrees. 20 percent chance for snow showers in the evening. West/northwest winds 0 to 5 mph.

Sunday, March 7

Partly cloudy with a high near 25 degrees. Northwest winds 5 to 10 mph.

Sunday night, partly cloudy in the evening then mostly clear after midnight with a low around 3 degrees. Northwest winds 0 to 5 mph.

Monday, March 8

Mostly sunny in the morning then partly cloudy in the afternoon. High around 31 degrees with west winds 0 to 5 mph.

Monday night, partly cloudy with a low near 15 degrees. West winds 0 to 5 mph.

Tuesday, March 9

Partly sunny with a high around 37 degrees. West winds 5 to 10 mph.

Tuesday night, partly cloudy with a 5 percent chance for precipitation. Low near 19 degrees with west winds 0 to 5 mph.

Regional Long-Range Trends 

March 10-16 

Above normal temperatures  /  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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