Southwest Harbor, ME Weather Forecast and Current Conditions

WEATHER ALERTS - High Wind Watch

Current Conditions From Nearby Local Station

37°F
Feels Like 30°F  
Humidity 82% Dew Point 32°F Wind WSW 9 MPH Gusts 11 Barometer 29.81 in.
Report from a personal weather station 0.7 mi. ESE of central Southwest Harbor
at

Point Forecast at a Glance

WedDec 17
Wed Dec 17: Mostly Sunny, High 43F, Low 28F
43
28
ThuDec 18
Thu Dec 18: Mostly Sunny, High 46F, Low 39F
46
39
FriDec 19
Fri Dec 19: Rain, High 53F, Low 24F
100%
53
24
SatDec 20
Sat Dec 20: Mostly Sunny, High 38F, Low 27F
38
27
SunDec 21
Sun Dec 21: Rain, High 43F, Low 19F
40%
43
19
MonDec 22
Mon Dec 22: Mostly Sunny, High 30F, Low 15F
30
15
TueDec 23
Tue Dec 23: Rain And Snow, High 35F
30%
35
 

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7-Day Temperature Trend

Week Ahead Summary

High temperatures start near 43°F, reaching 53°F before cooling to 30°F, then recovering to 35°F by week's end. Unsettled weather expected with wintry mix likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 4°F above the historical average for December. Normal highs for this period are around 37°F with lows around 21°F.

This Date in Weather History

1987 - A storm in the southwestern U.S. brought heavy rain and heavy snow to parts of California, Nevada, Arizona, Utah and New Mexico. Charleston NV was blanketed with 12 inches of snow. Lake Havasu City AZ was drenched with 2.26 inches of rain.

More on this and other weather history

Southwest Harbor, ME 7 Day Weather Forecast Details

Wednesday Dec 17

Mostly Sunny

Day: Mostly sunny, with a high near 43. Southwest wind 14 to 18 mph, with gusts as high as 32 mph.

Mostly Clear

Night: Mostly clear, with a low around 28. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

Thursday Dec 18

Mostly Sunny

Day: Mostly sunny, with a high near 46. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Rain

Night: A chance of rain, mainly after 2am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 39. South wind 10 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

Friday Dec 19

Rain

Day: Rain. Areas of fog before noon, then patchy fog after 2pm. High near 53. Breezy, with a south wind 16 to 22 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Rain Likely

Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 24. Southwest wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday Dec 20

Mostly Sunny

Day: Mostly sunny, with a high near 38. West wind 9 to 16 mph, with gusts as high as 29 mph.

Rain And Snow

Night: A chance of snow before midnight, then a chance of rain and snow between midnight and 2am, then rain likely after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

Sunday Dec 21

Rain

Day: A chance of rain, mainly before 1pm. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.

Partly Cloudy

Night: Partly cloudy, with a low around 19.

Monday Dec 22

Mostly Sunny

Day: Mostly sunny, with a high near 30.

Partly Cloudy

Night: Partly cloudy, with a low around 15.

Tuesday Dec 23

Rain And Snow

Day: A chance of rain and snow. Partly sunny, with a high near 35. Chance of precipitation is 30%.


About Southwest Harbor, ME

Southwest Harbor is a town in Hancock County, Maine, United States. Located on Mount Desert Island, the population was 1,756 at the 2020 census. The municipality contains within it the villages of Southwest Harbor, Manset, Seawall, Wonderland, and Pemetic Hills.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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.