Monthly Historical AveragesUnion, ME
Average Temperature
High
18°
Feels 18
Low
7°
Feels 6
Average Precipitation
12 Days
86.9mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, May 24, 2026
Day
12°Feels 11
Wind
14 km/h SE
Gust
21 km/h
Humidity
50%
P.O.P
40%
Rain
<1 mm
Night
8°Feels 6
Wind
17 km/h SE
Gust
26 km/h
Humidity
100%
P.O.P
80%
Rain
10-15 mm
Historical AveragesMay 24
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity