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Monthly weather forecast in Herndon
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
2
+11
+3
2 March, sun
+11
+3
Feels like
+1
752 mmHg
63%
5.3
m/s
SW
2 March, Sunday. day, 11°; night, 3°; rain
3
+9
+2
3 March, mon
+9
+2
Feels like
0
754 mmHg
60%
5.4
m/s
SW
3 March, Monday. day, 9°; night, 2°; clear
4
+8
0
4 March, tue
+8
0
Feels like
−1
755 mmHg
58%
5.1
m/s
SW
4 March, Tuesday. day, 8°; night, 0°; clear
5
+10
+1
5 March, wed
+10
+1
Feels like
0
756 mmHg
58%
4.9
m/s
SW
5 March, Wednesday. day, 10°; night, 1°; partly cloudy
6
March
+7
+1
6 March, thu
+7
+1
Feels like
−4
740 mmHg
50%
9.4
m/s
NW
Climate normal
+10
+2
6 March, Thursday. day, 7°; night, 1°; partly cloudy
7
+13
+5
7 March, fri
+13
+5
Feels like
+3
747 mmHg
34%
6.6
m/s
W
Climate normal
+12
+2
7 March, Friday. day, 13°; night, 5°; partly cloudy
8
+10
−1
8 March, sat
+10
−1
Feels like
−1
746 mmHg
45%
7.3
m/s
NW
Climate normal
+13
+3
8 March, Saturday. day, 10°; night, -1°; partly cloudy
9
+12
+2
9 March, sun
+12
+2
Feels like
+1
751 mmHg
42%
4.6
m/s
W
Climate normal
+12
+3
9 March, Sunday. day, 12°; night, 2°; clear
10
+17
+4
10 March, mon
+17
+4
Feels like
+6
750 mmHg
42%
5.3
m/s
W
Climate normal
+12
+3
10 March, Monday. day, 17°; night, 4°; mostly clear
11
+22
+10
11 March, tue
+22
+10
Feels like
+11
751 mmHg
43%
5.2
m/s
SW
Climate normal
+13
+3
11 March, Tuesday. day, 22°; night, 10°; mostly clear
12
+24
+14
12 March, wed
+24
+14
Feels like
+14
750 mmHg
46%
5.5
m/s
S
Climate normal
+13
+4
12 March, Wednesday. day, 24°; night, 14°; partly cloudy
13
+18
+9
13 March, thu
+18
+9
Feels like
+12
746 mmHg
69%
5.8
m/s
S
Climate normal
+13
+3
13 March, Thursday. day, 18°; night, 9°; light rain
14
+18
+9
14 March, fri
+18
+9
Feels like
+9
748 mmHg
63%
6.3
m/s
NW
Climate normal
+14
+4
14 March, Friday. day, 18°; night, 9°; partly cloudy
15
+17
+5
15 March, sat
+17
+5
Feels like
+9
750 mmHg
69%
5.5
m/s
SE
Climate normal
+14
+5
15 March, Saturday. day, 17°; night, 5°; partly cloudy
16
+16
+7
16 March, sun
+16
+7
Feels like
+9
749 mmHg
64%
6
m/s
W
Climate normal
+13
+5
16 March, Sunday. day, 16°; night, 7°; light rain
17
+17
+9
17 March, mon
+17
+9
Feels like
+9
751 mmHg
63%
5.1
m/s
W
Climate normal
+12
+4
17 March, Monday. day, 17°; night, 9°; partly cloudy
18
+19
+12
18 March, tue
+19
+12
Feels like
+10
743 mmHg
64%
3.3
m/s
SW
Climate normal
+13
+4
18 March, Tuesday. day, 19°; night, 12°; clear
19
+18
−1
19 March, wed
+18
−1
Feels like
+9
734 mmHg
67%
7.9
m/s
SW
Climate normal
+13
+4
19 March, Wednesday. day, 18°; night, -1°; partly cloudy
20
+2
−2
20 March, thu
+2
−2
Feels like
−11
742 mmHg
43%
9.6
m/s
NW
Climate normal
+13
+4
20 March, Thursday. day, 2°; night, -2°; clear
21
+8
+1
21 March, fri
+8
+1
Feels like
−5
741 mmHg
53%
8.3
m/s
W
Climate normal
+13
+4
21 March, Friday. day, 8°; night, 1°; mostly clear
22
+5
−3
22 March, sat
+5
−3
Feels like
−6
741 mmHg
62%
8
m/s
NW
Climate normal
+13
+4
22 March, Saturday. day, 5°; night, -3°; sleet
23
+7
−4
23 March, sun
+7
−4
Feels like
−4
743 mmHg
48%
4.6
m/s
W
Climate normal
+13
+4
23 March, Sunday. day, 7°; night, -4°; mostly clear
24
+7
−2
24 March, mon
+7
−2
Feels like
−4
746 mmHg
52%
2.4
m/s
NW
Climate normal
+13
+4
24 March, Monday. day, 7°; night, -2°; clear
25
+8
+1
25 March, tue
+8
+1
Feels like
−2
748 mmHg
58%
2.5
m/s
E
Climate normal
+13
+5
25 March, Tuesday. day, 8°; night, 1°; light rain
26
+3
+2
26 March, wed
+3
+2
Feels like
−1
745 mmHg
94%
2.1
m/s
NE
Climate normal
+14
+6
26 March, Wednesday. day, 3°; night, 2°; sleet
27
+7
+2
27 March, thu
+7
+2
Feels like
+1
744 mmHg
90%
3.8
m/s
NW
Climate normal
+14
+5
27 March, Thursday. day, 7°; night, 2°; light rain
28
+8
+4
28 March, fri
+8
+4
Feels like
0
747 mmHg
78%
4.1
m/s
NW
Climate normal
+15
+6
28 March, Friday. day, 8°; night, 4°; partly cloudy
29
+11
+5
29 March, sat
+11
+5
Feels like
+3
745 mmHg
72%
4.1
m/s
SE
Climate normal
+16
+7
29 March, Saturday. day, 11°; night, 5°; partly cloudy
30
+11
0
30 March, sun
+11
0
Feels like
+3
737 mmHg
88%
5.8
m/s
NW
Climate normal
+16
+6
30 March, Sunday. day, 11°; night, 0°; rain
31
+7
−3
31 March, mon
+7
−3
Feels like
−3
751 mmHg
52%
3.8
m/s
E
Climate normal
+16
+7
31 March, Monday. day, 7°; night, -3°; clear
1 April
+12
+1
1 April, tue
+12
+1
Feels like
+1
750 mmHg
61%
3.8
m/s
SE
Climate normal
+16
+7
1 April, Tuesday. day, 12°; night, 1°; mostly clear
2
+17
+13
2 April, wed
+17
+13
Feels like
+8
746 mmHg
75%
4.8
m/s
S
Climate normal
+16
+7
2 April, Wednesday. day, 17°; night, 13°; clear
3
+18
+7
3 April, thu
+18
+7
Feels like
+11
741 mmHg
82%
5.4
m/s
NW
Climate normal
+17
+7
3 April, Thursday. day, 18°; night, 7°; partly cloudy
4
+11
−1
4 April, fri
+11
−1
Feels like
−2
738 mmHg
64%
9.8
m/s
SW
Climate normal
+18
+9
4 April, Friday. day, 11°; night, -1°; partly cloudy
Average data for 10 years
Next, the average data for 10 years
5
+17
+7
5 April, sat
+17
+7
Feels like
+6
753 mmHg
52%
5.1
m/s
SW
5 April, Saturday. day, 17°; night, 7°; clear
Average for 30 days
12
sunny days
6
days with precipitation
12
cloudy days
12 sunny days; 6 days with precipitation; 12 cloudy days;
61
%
air humidity
5.6
m/s
Wind
NW
7
mm of precipitation
(1% of annual average)
air humidity 61%; 7 millimeters of precipitation (1% of annual average); Wind north-westerly 5.6 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
NW
W
NW
W
W
SW
S
S
NW
SE
W
W
SW
SW
NW
W
NW
W
NW
E
NE
NW
NW
SE
NW
E
SE
S
NW
SW
6
Average data for 10 years
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
1
April
2
3
4
Daytime temperature
Night-time temperature
