Apex Weather

St. John Valley weather for April 15-21, 2020

Short-Term: Wednesday – Friday
A weak cold front will approach today producing partly sunny to mostly cloudy skies with a chance for showers this afternoon into the evening hours that change to snow showers before tapering off before midnight.

Partly cloudy skies develop after midnight with partly cloudy/partly sunny skies across the Valley Thursday as more upper troughs circulate across the region with a slight chance for daytime showers and nighttime snow showers. Partly sunny to mostly cloudy skies continue across the region Friday with morning snow showers and afternoon rain showers across the region. Temperatures across the region will be slightly below normal for Thursday and Friday.

Today and Tonight
Partly cloudy/sunny with a 30 percent chance for afternoon rain showers. Little precipitation expected. High in the low 40s with west/southwest winds 5 to 10 mph.

Tonight, mostly cloudy with a 20 percent chance for rain showers before midnight. Becoming partly cloudy after midnight with a low in the lower 20s. West winds 0 to 5 mph.

Thursday, April 16
Partly sunny with a 10 percent chance for precipitation. High in the upper 30s with west winds 5 to 10 mph.

Thursday night, partly cloudy with a 10 percent chance for precipitation. Low in the lower 20s with west winds 0 to 5 mph.

Friday, April 17
Partly sunny to mostly cloudy with a 30 percent chance for morning snow showers and afternoon rain showers. Little precipitation expected. High in the low 40s with west winds 5 to 10 mph.

Friday night, partly cloudy with a 10 percent chance for precipitation. Low in the upper 10s with west winds 0 to 7 mph.

Medium-Range: Saturday – Tuesday
High pressure builds across the Valley Saturday into Sunday with partly cloudy skies through Sunday morning. Clouds increase Sunday afternoon as a cold front trailing from a Canadian low pressure moves towards the region from the west. Rain and snow showers are expected Sunday night into Monday morning with precipitation changing to rain Monday afternoon under mostly cloudy to partly sunny skies. Partly-to-mostly cloudy skies are expected Monday night and Tuesday as another areas of low pressure along with a weak cold front moves through the SJV.

Medium Range High/Low Temperatures
Sat. Apr. 18: mid-40s / mid-20s
Sun. Apr. 19: low 50s / low 30s
Mon. Apr. 20: mid-40s / mid-20s
Tue. Apr. 21: low 40s / low 20s

Regional Long-Range Trends Wed. Apr. 22 – Tue. Apr. 28
Below normal temperatures and slightly 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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