Apex Weather

St. John Valley weather for May 5-11, 2021

A broad area of low pressure crossing the state will bring widespread rainfall to the entire SJV today and tonight. Rain tapers to showers Thursday morning with showers lingering into the evening hours as the low lifts to the northeast. 

Clouds thin out overnight into Friday with partly cloudy skies developing as high pressure builds into the region from southern New England.

Wednesday, May 5

Cloudy with a 100 percent chance for rain. Rainfall totals between 1/4 and 1/2-inch. High near 48 degrees F with southeast winds near 10 mph.

Wednesday night, cloudy with a 100 percent chance for rain. Rainfall totals between 1/4 and 1/2-inch expected. Low around 39 degrees F with southeast winds near 5 mph shifting to the east/northeast 0 to 5 mph after midnight.

Thursday, May 6

Cloudy in the morning with rain likely then becoming mostly cloudy in the afternoon with a chance for showers. Chance for precipitation 80 percent. Rainfall totals between 1/100 and 1/10-inch. High near 46 degrees F with north winds becoming northwest 5 to 10 mph.

Thursday night, partly cloudy with a 30 percent chance for showers in the evening. Less than 1/10-inch expected. Low around 33 degrees F with northwest winds 0 to 5 mph. 

Friday, May 7

Partly cloudy with a 10 percent chance for showers. High near 57 degrees F with northwest winds 5 to 10 mph.

Friday night, partly cloudy with a 10 percent chance for isolated showers. Low around 32 degrees F with northeast winds 0 to 5 mph.

Medium-Range Outlook: Saturday – Tuesday
Low pressure is expected to track towards Nova Scotia off the East Coast; however, model variances make its exact track hard to determine presently. Currently, clouds are expected to increase Saturday with a chance for rain and rain showers in the afternoon. Showers become scattered Saturday night with partly sunny skies expected across the Valley Sunday. Some weak disturbances move across the region Monday and Tuesday bringing a chance for showers both days.

Saturday, May 8

Partly sunny in the morning then becoming mostly cloudy in the afternoon with a 30 percent chance for afternoon rain tapering to showers in the evening. High around 54 degrees F with north/northeast winds 5 to 10 mph.

Saturday night, mostly cloudy with a 20 percent chance for scattered showers. Low around 36 degrees F with west/northwest winds 0 to 7 mph.

Sunday, May 9

Partly sunny with a high around 57 degrees F. 20 percent chance for scattered showers in the afternoon. Northwest winds 5 to 10 mph. 

Sunday night, partly cloudy with a 30 percent chance for showers. Low near 37 degrees F with west/northwest winds 0 to 5 mph.

Monday, May 10
Partly cloudy early then becoming mostly cloudy in the afternoon with a 30 percent chance for showers. High near 57 degrees F with northwest winds 5 to 10 mph.

Monday night, mostly cloudy in the evening then becoming partly cloudy with a 30 percent chance for showers. Low around 36 degrees F with northwest winds 0 to 5 mph.

Tuesday, May 11

Partly sunny with a 30 percent chance for showers. High near 54 degrees F with northwest winds 5 to 10 mph.

Tuesday night, partly cloudy with a 20 percent chance for scattered showers. Low near 34 degrees F with northwest winds 0 to 5 mph.

Long-Range Trends: Wed. May 12 –  Tue. May 18

Below 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.

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