Hourly Weather Forecast - Southwest Harbor, ME

12 AM
26°F
10%
15mph
WNW
Mostly Clear
Humidity
65%
Feels like
14°F
Dew Point
16°F
1 AM
25°F
0%
15mph
WNW
Clear
Humidity
64%
Feels like
12°F
Dew Point
14°F
2 AM
24°F
0%
15mph
WNW
Clear
Humidity
59%
Feels like
11°F
Dew Point
11°F
3 AM
22°F
0%
14mph
WNW
Clear
Humidity
57%
Feels like
10°F
Dew Point
10°F
4 AM
21°F
0%
14mph
WNW
Mostly Clear
Humidity
55%
Feels like
8°F
Dew Point
7°F
5 AM
19°F
0%
13mph
WNW
Mostly Clear
Humidity
55%
Feels like
6°F
Dew Point
6°F
6 AM
19°F
0%
12mph
WNW
Partly Cloudy
Humidity
54%
Feels like
6°F
Dew Point
5°F
7 AM
18°F
0%
12mph
WNW
Partly Cloudy
Humidity
58%
Feels like
5°F
Dew Point
6°F
7:05 AM
8 AM
19°F
0%
12mph
WNW
Partly Cloudy
Humidity
50%
Feels like
6°F
Dew Point
3°F
9 AM
19°F
0%
12mph
WNW
Partly Cloudy
Humidity
49%
Feels like
6°F
Dew Point
3°F
10 AM
20°F
10%
12mph
WNW
Partly Cloudy
Humidity
48%
Feels like
8°F
Dew Point
4°F
11 AM
21°F
30%
12mph
WNW
30% Chance of Heavy Snow
Humidity
50%
Feels like
9°F
Dew Point
6°F
12 PM
23°F
30%
12mph
WNW
30% Chance of Heavy Snow
Humidity
53%
Feels like
11°F
Dew Point
8°F
1 PM
24°F
30%
12mph
WNW
30% Chance of Heavy Snow
Humidity
56%
Feels like
13°F
Dew Point
11°F
2 PM
24°F
30%
12mph
WNW
30% Chance Snow Showers
Humidity
57%
Feels like
13°F
Dew Point
11°F
3 PM
25°F
30%
11mph
WNW
30% Chance Snow Showers
Humidity
57%
Feels like
14°F
Dew Point
12°F
3:56 PM
4 PM
25°F
30%
11mph
W
30% Chance Snow Showers
Humidity
56%
Feels like
15°F
Dew Point
12°F
5 PM
26°F
30%
10mph
W
30 % Chance of Heavy Snow
Humidity
55%
Feels like
16°F
Dew Point
12°F
6 PM
26°F
40%
10mph
W
40% Chance of Heavy Snow
Humidity
56%
Feels like
16°F
Dew Point
13°F
7 PM
27°F
30%
9mph
WSW
30 % Chance of Heavy Snow
Humidity
57%
Feels like
18°F
Dew Point
13°F
8 PM
27°F
30%
9mph
WSW
30 % Chance of Heavy Snow
Humidity
61%
Feels like
18°F
Dew Point
16°F
9 PM
29°F
30%
9mph
SW
30 % Chance of Heavy Snow
Humidity
60%
Feels like
21°F
Dew Point
17°F
10 PM
30°F
30%
9mph
SW
30 % Chance of Heavy Snow
Humidity
61%
Feels like
22°F
Dew Point
19°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

Monday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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