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May weather forecast in Reston
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
27
+18
+15
27 April, sun
+18
+15
Feels like
+16
753 mmHg
64%
5.3
m/s
SW
27 April, Sunday. day, 18°; night, 15°; rain
28
+16
+12
28 April, mon
+16
+12
Feels like
+15
754 mmHg
72%
5
m/s
SE
28 April, Monday. day, 16°; night, 12°; rain
29
+18
+12
29 April, tue
+18
+12
Feels like
+17
754 mmHg
73%
3.9
m/s
SE
29 April, Tuesday. day, 18°; night, 12°; rain
30
+19
+13
30 April, wed
+19
+13
Feels like
+18
754 mmHg
69%
4.3
m/s
S
30 April, Wednesday. day, 19°; night, 13°; rain
1
+21
+14
1 May, thu
+21
+14
Feels like
+20
753 mmHg
68%
4.4
m/s
S
1 May, Thursday. day, 21°; night, 14°; overcast
2
+22
+17
2 May, fri
+22
+17
Feels like
+21
753 mmHg
67%
4.5
m/s
S
2 May, Friday. day, 22°; night, 17°; overcast
3
+20
+15
3 May, sat
+20
+15
Feels like
+19
753 mmHg
68%
5.1
m/s
SE
3 May, Saturday. day, 20°; night, 15°; rain
4
+19
+14
4 May, sun
+19
+14
Feels like
+18
752 mmHg
68%
4.8
m/s
SE
4 May, Sunday. day, 19°; night, 14°; rain
5
+20
+14
5 May, mon
+20
+14
Feels like
+19
751 mmHg
73%
4.3
m/s
SE
5 May, Monday. day, 20°; night, 14°; rain
6
+19
+14
6 May, tue
+19
+14
Feels like
+18
752 mmHg
73%
4.3
m/s
S
6 May, Tuesday. day, 19°; night, 14°; rain
7
+22
+15
7 May, wed
+22
+15
Feels like
+21
751 mmHg
63%
4.9
m/s
SW
7 May, Wednesday. day, 22°; night, 15°; partly cloudy
8
+21
+15
8 May, thu
+21
+15
Feels like
+19
752 mmHg
66%
5
m/s
SW
8 May, Thursday. day, 21°; night, 15°; partly cloudy
9
+21
+15
9 May, fri
+21
+15
Feels like
+20
753 mmHg
64%
4.5
m/s
W
9 May, Friday. day, 21°; night, 15°; clear
10
+18
+15
10 May, sat
+18
+15
Feels like
+17
754 mmHg
74%
4.3
m/s
SE
10 May, Saturday. day, 18°; night, 15°; clear
11
+20
+14
11 May, sun
+20
+14
Feels like
+19
753 mmHg
68%
4.9
m/s
W
11 May, Sunday. day, 20°; night, 14°; clear
12
+17
+14
12 May, mon
+17
+14
Feels like
+16
755 mmHg
72%
5.3
m/s
NW
12 May, Monday. day, 17°; night, 14°; overcast
13
+21
+13
13 May, tue
+21
+13
Feels like
+21
755 mmHg
68%
4.9
m/s
SW
13 May, Tuesday. day, 21°; night, 13°; rain
14
+23
+17
14 May, wed
+23
+17
Feels like
+22
752 mmHg
66%
5
m/s
SW
14 May, Wednesday. day, 23°; night, 17°; rain
15
+23
+17
15 May, thu
+23
+17
Feels like
+23
752 mmHg
64%
4.8
m/s
SW
15 May, Thursday. day, 23°; night, 17°; rain
16
+21
+17
16 May, fri
+21
+17
Feels like
+20
753 mmHg
66%
4.9
m/s
SW
16 May, Friday. day, 21°; night, 17°; overcast
17
+20
+15
17 May, sat
+20
+15
Feels like
+18
754 mmHg
67%
4.5
m/s
E
17 May, Saturday. day, 20°; night, 15°; partly cloudy
18
+21
+15
18 May, sun
+21
+15
Feels like
+21
754 mmHg
68%
3.2
m/s
SW
18 May, Sunday. day, 21°; night, 15°; partly cloudy
19
+21
+15
19 May, mon
+21
+15
Feels like
+20
755 mmHg
62%
4.1
m/s
NW
19 May, Monday. day, 21°; night, 15°; partly cloudy
20
+22
+16
20 May, tue
+22
+16
Feels like
+22
754 mmHg
68%
3.9
m/s
SE
20 May, Tuesday. day, 22°; night, 16°; partly cloudy
21
+23
+16
21 May, wed
+23
+16
Feels like
+23
752 mmHg
74%
4.4
m/s
S
21 May, Wednesday. day, 23°; night, 16°; clear
22
+21
+16
22 May, thu
+21
+16
Feels like
+21
752 mmHg
72%
4.4
m/s
SW
22 May, Thursday. day, 21°; night, 16°; clear
23
+22
+16
23 May, fri
+22
+16
Feels like
+22
753 mmHg
69%
4.1
m/s
W
23 May, Friday. day, 22°; night, 16°; rain
24
+24
+16
24 May, sat
+24
+16
Feels like
+24
753 mmHg
66%
4.5
m/s
W
24 May, Saturday. day, 24°; night, 16°; rain
25
+25
+18
25 May, sun
+25
+18
Feels like
+26
754 mmHg
62%
4.5
m/s
SW
25 May, Sunday. day, 25°; night, 18°; rain
26
+26
+19
26 May, mon
+26
+19
Feels like
+28
753 mmHg
66%
4
m/s
S
26 May, Monday. day, 26°; night, 19°; overcast
27
+26
+20
27 May, tue
+26
+20
Feels like
+29
753 mmHg
76%
4
m/s
S
27 May, Tuesday. day, 26°; night, 20°; rain
28
+25
+20
28 May, wed
+25
+20
Feels like
+26
754 mmHg
69%
4
m/s
SE
28 May, Wednesday. day, 25°; night, 20°; clear
29
+27
+19
29 May, thu
+27
+19
Feels like
+29
754 mmHg
64%
4.1
m/s
S
29 May, Thursday. day, 27°; night, 19°; rain
30
+28
+20
30 May, fri
+28
+20
Feels like
+30
753 mmHg
62%
4
m/s
S
30 May, Friday. day, 28°; night, 20°; clear
31
+27
+20
31 May, sat
+27
+20
Feels like
+28
753 mmHg
62%
4.1
m/s
SW
31 May, Saturday. day, 27°; night, 20°; rain
Average data for 10 years
Reston May
7
sunny days
13
days with precipitation
11
cloudy days
7 sunny days; 13 days with precipitation; 11 cloudy days;
68
%
air humidity
3
m/s
Wind
S
95
mm of precipitation
(12% of annual average)
air humidity 68%; 95 millimeters of precipitation (12% of annual average); Wind southerly 3 Meters per second
Weather graphs for May
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
S
S
SE
SE
SE
S
SW
SW
W
SE
W
NW
SW
SW
SW
SW
E
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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