Apex Wx

Overview: A cold front moving southeast from Quebec will cross northern Maine Friday, bringing a period of rain followed by cooler and drier Canadian air for the weekend. The front has slowed somewhat, with rain most likely through the morning and midday before gradually becoming more scattered. Rainfall will remain modest, generally less than 0.10 inch across the Valley, with somewhat higher amounts possible elsewhere in the region. As a result, the rain will provide little meaningful drought relief.

Friday: Cloudy with rain likely, especially through the morning and midday as the cold front crosses the Valley. Temperatures should remain in the lower 60s, with winds turning northwest behind the front. Rainfall should be light, generally less than 0.10 inch around Fort Kent, although locally somewhat higher amounts are possible. A few showers may linger into Friday evening before conditions gradually improve. Overnight lows fall into the lower 40s.

Saturday: Partly sunny early, then becoming mostly sunny to sunny as high pressure takes control. Highs should reach the middle to upper 50s, with a light northwest breeze. Skies become clear Saturday night and winds diminish. Temperatures fall into the upper 20s to lower 30s, with widespread frost developing overnight.

Sunday: Widespread frost early, followed by mostly sunny skies and a pleasant but cool afternoon. Temperatures should recover into the upper 50s to around 60°F as winds become southerly. Clouds begin increasing Sunday night as the next system approaches, with overnight temperatures in the lower 40s and a chance of rain developing late.

Monday, October 5 – Thursday, October 8

Overview:   The period begins with a more active pattern Monday as low pressure crossing southern Canada and an associated cold front move through northern Maine. Another low near the East Coast adds uncertainty to how much moisture reaches the County. Rain is likely for at least part of Monday, but the interaction between the two systems creates a wide range of possible rainfall amounts, so a dependable total is not yet supported.

Behind the front, colder Canadian air will surge into northern Maine Monday night and Tuesday. The most significant concern shifts from rain to wind as the pressure difference between departing low pressure and approaching high pressure strengthens. West to northwest winds may become quite strong Tuesday, with gusts potentially reaching 35–40 mph. Temperatures will struggle to reach much beyond 50°F, producing a distinctly chilly and blustery day across the Valley.

Winds will diminish Tuesday night as high pressure approaches. Wednesday should turn quieter, mostly sunny, and dry, with temperatures beginning to recover. The high shifts east Wednesday night into Thursday, allowing milder return flow to develop. Clouds will increase late Wednesday night, with a slight chance of rain toward Thursday morning, followed by a milder Thursday with considerable dry time despite another slight shower chance.

Monday: Cloudy with rain likely, mainly through the morning and early afternoon. Highs should reach the middle to upper 50s. South winds around 11–13 mph will turn west behind the front, with gusts potentially reaching the lower 20s. The rain chance is around 80%, although total rainfall remains unusually uncertain. Rain becomes more scattered Monday evening before ending, with lows in the lower to middle 30s.

Tuesday: A much cooler, windy to very windy day behind the front. A slight chance of a rain shower remains early, followed by partly sunny skies. Highs should reach only the upper 40s to lower 50s. West to northwest winds will strengthen substantially, with gusts of 35–40 mph possible. Partly cloudy and much calmer Tuesday night with lows around the lower 30s.

Wednesday: High pressure brings a quieter day with mostly sunny skies and dry conditions. Highs should recover into the lower to middle 50s. Wednesday night will be partly cloudy with lows in the middle to upper 30s and a slight chance of rain developing late.

Thursday: A milder day as high pressure shifts east and return flow develops. Skies should be partly sunny with a slight chance of rain. Temperatures recover noticeably, reaching the lower 60s. Mostly cloudy Thursday night with a 30% chance of rain and lows around 40°F.

Weather Notice

Apex Wx forecasts are based on available observations, computer model guidance, and other meteorological data. Conditions and forecast guidance can change, and information displayed here may not reflect the latest official forecast or warning information. Always visit NWS Caribou for the latest official forecasts, watches, warnings, and advisories for northern Maine.

Apex Wx is a private weather information service unaffiliated with NOAA or the National Weather Service and operated by Joseph Becker. Dr. Becker earned a Certificate in Weather Forecasting from Penn State University and is a trained NWS SKYWARN Storm Spotter.

Credits

• Sun and Moon data from the U.S. Naval Observatory, with additional astronomical information from timeanddate.com.
• NOAA warning banner provided by WillyWeather.com.
• Through December 2026, additional archived Apex Wx weather data are available through the University of Utah's MesoWest.
• Current and archived Apex Wx weather data are available through Synoptic Data, the successor to MesoWest.
• Apex Wx logo by Joanna Becker © 2016. Visit Bushi and Brush Arts Dojo.

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