Apex Weather

St. John Valley weather for March 18-24, 2020

Short-Term Outlook: Wednesday – Friday
High pressure will build across Fort Kent and the Upper Saint John Valley today with mostly clear skies into the early evening hours.

Skies become partly cloudy tonight with partly cloudy/sunny skies expected Thursday as a warm front lifts towards the region from the southwest with rain spreading across the SJV after midnight, initially mixing with some snow. Rain is likely Friday as the warm front moves through followed by a cold front later, which may have enough instability to trigger some thunderstorms. Colder air moves back in after the frontal passage Friday night.

Today & Tonight / Sunrise: 6:40 AM EDT / Sunset: 6:44 PM EDT
Mostly clear with a high near 28 degrees F. West/northwest winds 5 to 10 mph.

Tonight, partly cloudy with a low around 10 degrees F. West winds become south/southeast near calm.

Thursday, March 19 / Sunrise: 6:38 AM EDT / Sunset: 6:46 PM EDT / Astronomical Spring begins at 11:50 PM EDT
Partly sunny with increasing clouds in the afternoon. 10 percent chance for precipitation late in the day. High near 37 degrees F.

Thursday night, cloudy with a 60 percent chance for snow mixing with then changing to rain by Friday morning. Precipitation totals between 0.05 and 0.10 inch. Low 33 degrees F with southeast winds 5 to 10 mph.

Friday, March 20 / Sunrise: 6:36 AM EDT / Sunset: 6:47 PM EDT
Cloudy with a 70 percent chance for rain with between 0.10 and 0.20 inch expected. High 48 degrees F with south winds near 10 mph becoming southwesterly in the late afternoon/early evening.

Friday night, cloudy with a 40 percent chance for rain and a slight chance for snow showers developing. Low around 18 degrees F.

Further Ahead: Saturday – Tuesday
Clouds diminish Saturday as high pressure over the Great Lakes builds east on gusty northwest winds. Partly cloudy to mostly clear skies and breezy conditions are expected across the region Sunday with mostly clear skies Monday giving way to increasing clouds in the afternoon as low pressure in the US Southeast tracks towards the region, possibly bringing a significant precipitation even to the Valley depending on the system’s ultimate track–still too far out to be certain with this forecast.

Medium-Range Highs/Lows
Sat. Mar. 21: low 20s / 0 to 5 above
Sun. Mar. 22: mid-20s / near 5 above
Mon. Mar. 23: mid-30s / upper 10s
Tue. Mar. 24: upper 30s / mid-20s

Regional Long-Range Trends Wed. Mar. 25 – Tue. Mar. 31
Slightly above 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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