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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Belfast, ME
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May
Average Temperature
High
17°
Feels 16
Low
7°
Feels 6
Average Precipitation
12 Days
Rain amount
70.4mm
Snow amount
0.1cm
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Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
24°
18
16°
19
26°
20
27°
21
15°
22
18°
23
17°
24
14°
25
16°
26
17°
27
18°
28
19°
29
19°
30
19°
31
19°
Forecast
Sunday, May 17, 2026
Day
24°
Feels 24
Wind
28 km/h W
Gust
60 km/h
Humidity
38%
P.O.P
20%
Night
9°
Feels 7
Wind
22 km/h N
Gust
33 km/h
Humidity
71%
P.O.P
20%
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.