Monthly Historical AveragesSullivan, ME
Average Temperature
High
10°
Feels 9
Low
1°
Feels -2
Average Precipitation
11 Days
63.2mm
3.7cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, April 1, 2026
Day
8°Feels 5
Wind
19 km/h N
Gust
29 km/h
Humidity
61%
P.O.P
40%
Rain
~1 mm
Night
-1°Feels -6
Wind
18 km/h NE
Gust
27 km/h
Humidity
80%
P.O.P
20%
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity