St. John Valley weather for June 15-21
3-Day Outlook: Wednesday-Friday
A dense fog advisory is in effect until 9 am this morning. After a partly cloudy start, today will feature mostly sunny skies with temperatures in the mid-to-upper 70s west to east across the County. Tonight will be partly cloudy with lows dipping into the lower-to-mid-50s.
Partly cloudy skies continue Thursday morning with highs climbing to near 80 degrees along with breezy south winds. Clouds increase Thursday afternoon as an occluded moves towards the region from the Great Lakes with showers likely by Thursday evening along with a slight chance for isolated thunderstorms.
Skies will be mostly cloudy Thursday night with showers likely and a slight chance for thunderstorms. Some patchy fog is also expected overnight into Friday. A secondary cold front will cross the region with showers likely with a chance for thunderstorms, especially in the afternoon along and ahead of the cold front. Showers with a chance for thunderstorms continue Friday night into Saturday.
Today and Tonight
Partly cloudy early then mostly sunny with a high around 79 degrees. North-northwest wind near calm.
Tonight, partly cloudy with a low near 54 degrees. South wind near calm in the evening then 0-5 mph overnight.
Thursday, June 16
Partly cloudy in the morning then becoming mostly cloudy in the afternoon with a 30 percent chance for afternoon showers. High around 79 degrees. South wind 10-15 mph.
Thursday night, mostly cloudy with a 70 percent chance for showers and a slight chance for thunderstorms. Rainfall totals between 0.10 and 0.25-inch. Low near 60 degrees. South wind 5-10 mph.
Friday, June 17
Mostly cloudy with an 80 percent chance for showers and thunderstorms. Rainfall totals between 0.25 and 0.50-inch with higher amounts possible in storms. High around 74 degrees. South to southwest wind 5-10 mph.
Friday night, mostly cloudy with a 70 percent chance for showers and mainly evening thunderstorms. Rainfall amounts between 0.10 and 0.25-inch with higher amounts possible in storms. Low near 51 degrees. West wind 5-10 mph.
4- to 7-Day Outlook: Saturday – Tuesday
A closed upper-level low looks to settle across the Northeast for the weekend with a chance for showers through Monday afternoon. A chance for scattered showers continues Sunday and Monday as the upper low slowly drifts east-southeast over the region. Partly cloudy skies Tuesday morning become partly sunny in the afternoon as the upper-low moves away and a warm front approaches.
Saturday, June 18
Mostly cloudy with a 50 percent chance for showers. Rainfall totals in the 1/10th to quarter-inch range. High around 61 degrees. Northwest wind 10-15 mph gusting to around 25 mph.
Saturday night, mostly cloudy with a 40 percent chance for showers. Rainfall totals less than a tenth of an inch. Low near 44 degrees. Northwest wind 10-15 mph.
Sunday, June 19
Partly sunny with a 40 percent chance for showers. Rainfall less than a tenth of an inch. High around 59 degrees. Northwest wind 10-15 mph.
Sunday night, becoming partly cloudy with a 40 percent chance for showers. Rainfall less than a tenth of an inch. Low near 41 degrees. Northwest wind 5-10 mph.
Monday, June 20
Partly sunny with a 30 percent chance for showers. High around 65 degrees. Northwest wind 5-10 mph.
Monday night, partly cloudy with a 10 percent chance for showers. Low near 45 degrees. Southwest wind 0-5 mph.
Tuesday, June 21 / Summer Solstice at 5:14 am ET
Partly cloudy in the morning then partly sunny in the afternoon with a 20 percent chance for afternoon showers. High around 69 degrees. South wind 5-10 mph.
Tuesday night, partly cloudy with a 20 percent chance for showers. Low near 50 degrees. Southeast wind 0-5 mph.
8- to 14-Day Trends: Wednesday, June 22-Tuesday, June 28
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.