via Google Translate

Wednesday, November 4 – Friday, November 6

Rain that began Tuesday night will continue across the Saint John Valley Wednesday as a warm front lifts northeast and an upper-level disturbance passes north of Maine. Patchy fog and low clouds will accompany the rain, with an additional 0.25–0.50 inch possible. The front’s progress will determine how quickly conditions improve, but temperatures should reach the upper 50s. Rain will taper during the evening, leaving a mostly cloudy and largely dry night with lows in the upper 40s.

Southerly flow behind the front will bring a warmer air mass into northern Aroostook County Thursday. Despite considerable cloud cover, afternoon temperatures should reach the middle 60s. Another disturbance will introduce a 50% chance of rain after 3 p.m., though less than 0.10 inch is expected during the day. A lower chance of light rain will continue Thursday evening before ending overnight.

Friday should offer a break between precipitation opportunities. Partly sunny skies and west winds will accompany temperatures in the lower 60s. Clouds will increase Friday night as the broader unsettled pattern brings another chance of light rain after 1 a.m. North winds will help lower temperatures to around 40°F. The timing and coverage of these later rain periods remain uncertain.

Wednesday: Rain and patchy fog will keep skies cloudy across the Saint John Valley. Temperatures will rise into the upper 50s with light southeast winds, while a 100% precipitation chance could bring an additional 0.25–0.50 inch of rain. Rain should taper this evening, with only a slight chance remaining before 8 p.m. Mostly cloudy skies will persist overnight as temperatures fall into the upper 40s.

Thursday: Southerly flow will bring a warmer afternoon despite mostly cloudy skies, with temperatures reaching the middle 60s. A 50% chance of rain develops after 3 p.m., but daytime amounts should remain below 0.10 inch. A 30% chance continues during the evening before rain ends after 1 a.m. Southwest winds around 7 mph and persistent clouds will keep overnight temperatures in the lower 50s.

Friday: A break between rain opportunities will allow partly sunny skies and temperatures in the lower 60s. West winds of 5–9 mph will accompany a dry afternoon. Clouds will increase again overnight, with a 40% chance of light rain after 1 a.m. North winds around 6 mph will accompany temperatures falling to around 40°F.

Saturday, November 7 – Tuesday, November 10

Overview
Friday’s brief improvement will give way to a cooler, wetter weekend across the Saint John Valley. An upper-level low moving from the Great Lakes toward southern Quebec may keep low pressure near or north of Maine, sustaining rain as the system slowly shifts east. Northeast winds, extensive clouds, and a 70% chance of rain will hold Saturday’s temperatures in the upper 40s. Rain remains likely Saturday night, with lows in the upper 30s.

Saturday: Mostly cloudy skies, northeast winds around 8 mph, and periods of rain will keep temperatures in the upper 40s. The precipitation chance is 70%, although the timing and amounts of individual rainfall periods remain uncertain. Rain will remain likely Saturday evening and overnight. Clouds will limit nighttime cooling, with temperatures falling into the upper 30s.

Sunday: Rain will remain likely across the Saint John Valley, with a 60% precipitation chance and afternoon temperatures in the upper 40s. Mostly cloudy skies will persist as the slow-moving system gradually shifts away. Rain should become less widespread during the evening, though a 40% chance will continue overnight. Temperatures will fall into the middle 30s.

Monday: Partial sunshine may develop between clouds, allowing temperatures to reach the middle 40s. A 30% chance of rain remains as another disturbance approaches, but a prolonged period of precipitation is not established in the point forecast. A 30% chance of rain continues before 10 p.m. Mostly cloudy skies will follow, with an overnight low in the lower 30s.

Tuesday: A cooler air mass will keep afternoon temperatures in the lower 40s under partly sunny skies. A 30% chance of rain and snow develops after 10 a.m.; any precipitation is expected to be limited, with no accumulation indicated. Mostly cloudy conditions will continue tonight as temperatures fall to around 30°F. A chance of rain early in the evening will give way to a slight chance of rain and snow before precipitation ends overnight.

Long Range Trends: Wednesday, November 11 – Tuesday, November 17

The latest regional outlook favors above-normal temperatures and below-normal precipitation across the area. Ridging over the north-central United States supports a broadly warmer pattern, while its influence also favors drier conditions across much of the Northeast. Typical mid-November temperatures in the Valley feature daytime highs in the upper 30s to around 40°F and overnight lows in the lower to middle 20s.

Outlooks updated 7-9 AM weekdays & 8-10 AM weekends and holidays. Long range outlooks indicate broader temperature and precipitation trends rather than precise day-to-day forecasts. 

Common abbreviations: CPC = Climate Prediction Center;  NHC = National Hurricane Center; NOAA = National Oceanic and Atmospheric Administration; NWS = National Weather Service;  SPC = Storm Prediction Center; WPC = Weather Prediction Center

Updated every 3-6 hours from NWS Caribou

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.

How accurate are forecasts?

Forecast confidence generally decreases as lead time increases. Forecasts for the next few days usually provide considerably more detail and confidence than forecasts a week or more in advance. Beyond about 7 days, forecasts are most useful for identifying broader weather patterns and temperature or precipitation trends rather than predicting exact conditions at a particular place and time.

Individual computer-model runs—especially those depicting specific storms, snowfall amounts, or other details a week or more in advance—should not be treated as forecasts by themselves. Extended forecasts will change as new observations become available and models better resolve the evolving atmospheric pattern. Check updated forecasts as the event approaches.

Weather Apps

Most weather apps rely heavily on automated forecast data. They can be useful for a quick look at routine weather, but automated forecasts may miss important local details or the significance of rapidly changing conditions. During hazardous or changing weather, consult weather.gov and other official National Weather Service information rather than relying solely on an app.

Radar Apps

Weather radar is an invaluable tool for tracking precipitation and storms, but radar images should not be interpreted as a real-time picture of conditions at the ground. Data collection, processing, transmission, mosaicking, and app updates can introduce delays, and radar detects energy returned from precipitation at varying heights above the surface. During rapidly developing or moving storms, conditions at your location may therefore differ from what a radar app appears to show. Use radar together with current observations and official National Weather Service warnings.