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May weather forecast in National Harbor
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
28
+17
+13
28 April, sun
+17
+13
Feels like
+15
758 mmHg
72%
5.1
m/s
E
28 April, Sunday. day, 17°; night, 13°; rain
29
+18
+13
29 April, mon
+18
+13
Feels like
+17
758 mmHg
73%
4
m/s
SE
29 April, Monday. day, 18°; night, 13°; rain
30
+20
+14
30 April, tue
+20
+14
Feels like
+18
758 mmHg
68%
4.3
m/s
S
30 April, Tuesday. day, 20°; night, 14°; rain
1
+21
+15
1 May, wed
+21
+15
Feels like
+20
757 mmHg
68%
4.4
m/s
S
1 May, Wednesday. day, 21°; night, 15°; overcast
2
+22
+17
2 May, thu
+22
+17
Feels like
+21
757 mmHg
67%
4.9
m/s
S
2 May, Thursday. day, 22°; night, 17°; overcast
3
+20
+15
3 May, fri
+20
+15
Feels like
+19
757 mmHg
68%
5.1
m/s
SE
3 May, Friday. day, 20°; night, 15°; clear
4
+20
+14
4 May, sat
+20
+14
Feels like
+19
756 mmHg
68%
4.9
m/s
NE
4 May, Saturday. day, 20°; night, 14°; rain
5
+20
+14
5 May, sun
+20
+14
Feels like
+19
755 mmHg
74%
4.5
m/s
SE
5 May, Sunday. day, 20°; night, 14°; rain
6
+19
+14
6 May, mon
+19
+14
Feels like
+18
756 mmHg
73%
4.3
m/s
SE
6 May, Monday. day, 19°; night, 14°; rain
7
+22
+15
7 May, tue
+22
+15
Feels like
+21
755 mmHg
63%
4.8
m/s
SW
7 May, Tuesday. day, 22°; night, 15°; clear
8
+21
+16
8 May, wed
+21
+16
Feels like
+20
756 mmHg
66%
4.9
m/s
SW
8 May, Wednesday. day, 21°; night, 16°; partly cloudy
9
+21
+16
9 May, thu
+21
+16
Feels like
+21
757 mmHg
66%
4.5
m/s
W
9 May, Thursday. day, 21°; night, 16°; clear
10
+18
+16
10 May, fri
+18
+16
Feels like
+17
758 mmHg
75%
4.4
m/s
SE
10 May, Friday. day, 18°; night, 16°; rain
11
+20
+14
11 May, sat
+20
+14
Feels like
+19
757 mmHg
68%
4.5
m/s
W
11 May, Saturday. day, 20°; night, 14°; clear
12
+18
+14
12 May, sun
+18
+14
Feels like
+16
759 mmHg
72%
5.3
m/s
NW
12 May, Sunday. day, 18°; night, 14°; overcast
13
+21
+13
13 May, mon
+21
+13
Feels like
+21
759 mmHg
68%
5
m/s
SW
13 May, Monday. day, 21°; night, 13°; rain
14
+23
+17
14 May, tue
+23
+17
Feels like
+22
756 mmHg
66%
5.3
m/s
SW
14 May, Tuesday. day, 23°; night, 17°; rain
15
+23
+18
15 May, wed
+23
+18
Feels like
+23
756 mmHg
66%
4.9
m/s
SW
15 May, Wednesday. day, 23°; night, 18°; rain
16
+21
+17
16 May, thu
+21
+17
Feels like
+21
757 mmHg
68%
4.6
m/s
SW
16 May, Thursday. day, 21°; night, 17°; rain
17
+20
+16
17 May, fri
+20
+16
Feels like
+19
758 mmHg
68%
4.4
m/s
N
17 May, Friday. day, 20°; night, 16°; rain
18
+21
+15
18 May, sat
+21
+15
Feels like
+21
758 mmHg
68%
3.2
m/s
SW
18 May, Saturday. day, 21°; night, 15°; partly cloudy
19
+22
+16
19 May, sun
+22
+16
Feels like
+21
759 mmHg
62%
4.3
m/s
NW
19 May, Sunday. day, 22°; night, 16°; rain
20
+22
+16
20 May, mon
+22
+16
Feels like
+22
758 mmHg
68%
3.9
m/s
SE
20 May, Monday. day, 22°; night, 16°; partly cloudy
21
+23
+17
21 May, tue
+23
+17
Feels like
+23
756 mmHg
75%
4.1
m/s
S
21 May, Tuesday. day, 23°; night, 17°; clear
22
+22
+17
22 May, wed
+22
+17
Feels like
+22
756 mmHg
73%
4.4
m/s
SW
22 May, Wednesday. day, 22°; night, 17°; clear
23
+22
+16
23 May, thu
+22
+16
Feels like
+22
757 mmHg
69%
4.4
m/s
W
23 May, Thursday. day, 22°; night, 16°; rain
24
+24
+17
24 May, fri
+24
+17
Feels like
+24
757 mmHg
67%
4.4
m/s
W
24 May, Friday. day, 24°; night, 17°; rain
25
+26
+18
25 May, sat
+26
+18
Feels like
+26
758 mmHg
62%
4.5
m/s
SW
25 May, Saturday. day, 26°; night, 18°; rain
26
+27
+19
26 May, sun
+27
+19
Feels like
+28
757 mmHg
67%
4.1
m/s
S
26 May, Sunday. day, 27°; night, 19°; overcast
27
+26
+20
27 May, mon
+26
+20
Feels like
+29
757 mmHg
76%
4
m/s
S
27 May, Monday. day, 26°; night, 20°; rain
28
+25
+20
28 May, tue
+25
+20
Feels like
+27
758 mmHg
72%
4.1
m/s
SE
28 May, Tuesday. day, 25°; night, 20°; partly cloudy
29
+27
+19
29 May, wed
+27
+19
Feels like
+29
758 mmHg
67%
4.1
m/s
S
29 May, Wednesday. day, 27°; night, 19°; rain
30
+28
+21
30 May, thu
+28
+21
Feels like
+30
757 mmHg
66%
3.9
m/s
S
30 May, Thursday. day, 28°; night, 21°; clear
31
+27
+20
31 May, fri
+27
+20
Feels like
+29
757 mmHg
63%
4.1
m/s
SW
31 May, Friday. day, 27°; night, 20°; rain
1
+27
+21
1 June, sat
+27
+21
Feels like
+28
756 mmHg
64%
4.9
m/s
SW
1 June, Saturday. day, 27°; night, 21°; partly cloudy
Average data for 10 years
National Harbor May
7
sunny days
16
days with precipitation
8
cloudy days
7 sunny days; 16 days with precipitation; 8 cloudy days;
68
%
air humidity
3.2
m/s
Wind
SW
93
mm of precipitation
(11% of annual average)
air humidity 68%; 93 millimeters of precipitation (11% of annual average); Wind south-westerly 3.2 Meters per second
Weather graphs for May
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
S
S
SE
NE
SE
SE
SW
SW
W
SE
W
NW
SW
SW
SW
SW
N
SW
NW
SE
S
SW
W
W
SW
S
S
SE
S
S
SW
1
Average data for 10 years
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Daytime temperature
Night-time temperature
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