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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Charlestown, MD
Content continues below
May
Average Temperature
High
23°
Feels 23
Low
13°
Feels 12
Average Precipitation
12 Days
Rain amount
70.8mm
Snow amount
0cm
Content continues below
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
18
19
32°
20
32°
21
14°
22
17°
23
12°
24
17°
25
17°
26
22°
27
25°
28
26°
29
24°
30
23°
31
23°
Forecast
Tuesday, May 19, 2026
Day
32°
Feels 34
Wind
19 km/h SW
Gust
28 km/h
Humidity
42%
P.O.P
40%
Rain
<1 mm
Night
20°
Feels 20
Wind
8 km/h SW
Gust
13 km/h
Humidity
86%
P.O.P
30%
Historical Averages
May 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.