What is today's weather forecast for Grand Manan, NB?

Today's forecast for Grand Manan shows a high of 27 degrees and a low of 27 degrees Fahrenheit. Mostly Sunny with a high near 27 F.

What is the 7-day weather forecast for Grand Manan, NB?

The 7-day forecast for Grand Manan shows highs from 21 to 43 degrees and lows from 14 to 36 degrees Fahrenheit. Expect precipitation on 6 days with chances of 20% or higher.

Will it rain in Grand Manan, NB this week?

Yes, rain is possible in Grand Manan this week. Precipitation chances: Saturday (60% chance), Sunday (60% chance), Monday (40% chance), Friday (20% chance), Saturday (20% chance), Sunday (70% chance).

How accurate is the Grand Manan weather forecast?

WeatherForYou provides highly accurate Grand Manan forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Grand Manan, NB Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

19°F
Feels Like 17°F

Humidity 66% Dew Point 10°F Wind ESE 2 MPH Gusts 9 Barometer 29.34 in.

Report from a personal weather station 11.6 mi. NNW of central Grand Manan
at 3:06 AM Fri, Dec 12, 2025

Point Forecast at a Glance

FriDec 12

SatDec 13

30%

SunDec 14

60%

MonDec 15

40%

TueDec 16

WedDec 17

ThuDec 18

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Significant warming trend with high temperatures climbing from 27°F to 36°F, reaching a high of 40°F. Unsettled weather expected with wintry mix likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 6°F below the historical average for December. Normal highs for this period are around 36°F with lows around 21°F.

This Date in Weather History

1960 - The first of three Middle Atlantic snowstorms produced a foot of snow at Baltimore MD. A pre-winter blizzard struck the northeastern U.S. producing wind gusts as high as 51 mph, along with 16 inches of snow at Nantucket MA, and 20 inches at Newark NJ.

Grand Manan, NB 7 Day Weather Forecast Details

Friday Dec 12

Day: Mostly Sunny with a high near 27 F. Winds from the W at 27 mph

Night: Mostly Clear with a low near 27 F. Winds from the W at 21 mph

Saturday Dec 13

Day: Partly Cloudy with Light Wintry Mix with a high near 34 F. Winds from the W at 15 mph. Chance of precipitation is 30%

Night: Cloudy with Light Wintry Mix with a low near 26 F. Winds from the W at 4 mph. Chance of precipitation is 60%

Sunday Dec 14

Day: Mostly Cloudy with Snow Showers with a high near 29 F. Winds from the W at 3 mph. Chance of precipitation is 60%

Night: Mostly Cloudy with Snow Showers with a low near 21 F. Winds from the NNE at 13 mph. Chance of precipitation is 60%

Monday Dec 15

Day: Partly Cloudy with Snow Showers with a high near 21 F. Winds from the NNW at 23 mph. Chance of precipitation is 40%

Night: Partly Cloudy with a low near 14 F. Winds from the NW at 19 mph

Tuesday Dec 16

Day: Mostly Cloudy with Snow Showers with a high near 23 F. Winds from the WNW at 13 mph. Chance of precipitation is 10%

Night: Mostly Cloudy with a low near 20 F. Winds from the NW at 12 mph

Wednesday Dec 17

Day: Mostly Cloudy with Light Wintry Mix with a high near 40 F. Winds from the SSW at 23 mph. Chance of precipitation is 10%

Night: Mostly Cloudy with Light Wintry Mix with a low near 33 F. Winds from the SW at 30 mph. Chance of precipitation is 10%

Thursday Dec 18

Day: Mostly Cloudy with Light Wintry Mix with a high near 36 F. Winds from the WSW at 17 mph. Chance of precipitation is 10%

Night: Mostly Cloudy with Light Wintry Mix with a low near 36 F. Winds from the SW at 16 mph. Chance of precipitation is 10%

Friday Dec 19

Day: Mostly Cloudy with Light Wintry Mix with a high near 43 F. Winds from the WSW at 17 mph. Chance of precipitation is 20%

Night: Mostly Cloudy with Snow Showers with a low near 16 F. Winds from the W at 17 mph. Chance of precipitation is 20%

Saturday Dec 20

Day: Partly Cloudy with Snow Showers with a high near 24 F. Winds from the N at 18 mph. Chance of precipitation is 20%

Night: Cloudy with Light Wintry Mix with a low near 25 F. Winds from the NNE at 8 mph. Chance of precipitation is 20%

Sunday Dec 21

Day: Mostly Cloudy with Showers with a high near 39 F. Winds from the SSE at 15 mph. Chance of precipitation is 70%

Night: Cloudy with Light Rain Likely with a low near 35 F. Winds from the ESE at 22 mph. Chance of precipitation is 70%

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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