Monthly Historical AveragesAntietam, MD
Average Temperature
High
24°
Feels 24
Low
12°
Feels 12
Average Precipitation
12 Days
77.9mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, May 23, 2026
Day
11°Feels 10
Wind
17 km/h E
Gust
25 km/h
Humidity
90%
P.O.P
90%
Rain
~5 mm
Night
11°Feels 9
Wind
20 km/h E
Gust
29 km/h
Humidity
99%
P.O.P
100%
Rain
10-15 mm
Historical AveragesMay 23
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity