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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
19
+5
0
19 January, sun
+5
0
Feels like
+1
754 mmHg
68%
4.4
m/s
W
19 January, Sunday. day, 5°; night, 0°; partly cloudy
20
January
−6
−14
20 January, mon
−6
−14
Feels like
−16
761 mmHg
54%
7
m/s
NW
Climate normal
+3
+1
20 January, Monday. day, -6°; night, -14°; partly cloudy
21
−8
−15
21 January, tue
−8
−15
Feels like
−15
764 mmHg
58%
2.5
m/s
NW
Climate normal
+1
−1
21 January, Tuesday. day, -8°; night, -15°; overcast
22
−10
−13
22 January, wed
−10
−13
Feels like
−19
765 mmHg
58%
5
m/s
NW
Climate normal
0
−3
22 January, Wednesday. day, -10°; night, -13°; mostly clear
23
−2
−12
23 January, thu
−2
−12
Feels like
−11
758 mmHg
64%
3.1
m/s
NE
Climate normal
+2
−2
23 January, Thursday. day, -2°; night, -12°; partly cloudy
24
0
−8
24 January, fri
0
−8
Feels like
−10
755 mmHg
60%
4
m/s
NW
Climate normal
+2
−1
24 January, Friday. day, 0°; night, -8°; clear
25
+4
0
25 January, sat
+4
0
Feels like
−7
759 mmHg
61%
4.2
m/s
SW
Climate normal
+5
−1
25 January, Saturday. day, 4°; night, 0°; partly cloudy
26
+7
0
26 January, sun
+7
0
Feels like
−1
756 mmHg
60%
3.9
m/s
W
Climate normal
+4
+1
26 January, Sunday. day, 7°; night, 0°; overcast
27
+6
+1
27 January, mon
+6
+1
Feels like
−3
751 mmHg
67%
4.9
m/s
W
Climate normal
+3
+1
27 January, Monday. day, 6°; night, 1°; partly cloudy
28
+3
−2
28 January, tue
+3
−2
Feels like
−4
749 mmHg
58%
4.8
m/s
W
Climate normal
+3
−1
28 January, Tuesday. day, 3°; night, -2°; sleet
29
+6
−6
29 January, wed
+6
−6
Feels like
−4
751 mmHg
61%
5.2
m/s
W
Climate normal
+3
−1
29 January, Wednesday. day, 6°; night, -6°; partly cloudy
30
0
−5
30 January, thu
0
−5
Feels like
−8
755 mmHg
64%
4.9
m/s
W
Climate normal
+4
0
30 January, Thursday. day, 0°; night, -5°; overcast
31
0
−3
31 January, fri
0
−3
Feels like
−8
756 mmHg
69%
4.6
m/s
W
Climate normal
+5
−1
31 January, Friday. day, 0°; night, -3°; overcast
1 February
+4
+3
1 February, sat
+4
+3
Feels like
0
746 mmHg
89%
2.2
m/s
E
Climate normal
+7
+2
1 February, Saturday. day, 4°; night, 3°; light rain
2
+6
+3
2 February, sun
+6
+3
Feels like
+1
744 mmHg
95%
1.8
m/s
S
Climate normal
+7
+3
2 February, Sunday. day, 6°; night, 3°; partly cloudy
3
+8
+2
3 February, mon
+8
+2
Feels like
0
744 mmHg
85%
3.5
m/s
NW
Climate normal
+4
0
3 February, Monday. day, 8°; night, 2°; mostly clear
4
+8
+2
4 February, tue
+8
+2
Feels like
+1
749 mmHg
83%
2.1
m/s
W
Climate normal
+4
0
4 February, Tuesday. day, 8°; night, 2°; mostly clear
5
+8
0
5 February, wed
+8
0
Feels like
−1
746 mmHg
77%
3.8
m/s
NW
Climate normal
+4
+1
5 February, Wednesday. day, 8°; night, 0°; mostly clear
6
+6
0
6 February, thu
+6
0
Feels like
−3
740 mmHg
73%
5.3
m/s
W
Climate normal
+6
+1
6 February, Thursday. day, 6°; night, 0°; partly cloudy
7
+3
−4
7 February, fri
+3
−4
Feels like
−6
743 mmHg
63%
4.3
m/s
NW
Climate normal
+8
+2
7 February, Friday. day, 3°; night, -4°; partly cloudy
8
−2
−7
8 February, sat
−2
−7
Feels like
−10
747 mmHg
51%
4.4
m/s
NE
Climate normal
+7
+3
8 February, Saturday. day, -2°; night, -7°; partly cloudy
9
−4
−9
9 February, sun
−4
−9
Feels like
−13
753 mmHg
26%
5.4
m/s
N
Climate normal
+3
+1
9 February, Sunday. day, -4°; night, -9°; clear
10
−2
−5
10 February, mon
−2
−5
Feels like
−10
754 mmHg
23%
2.2
m/s
E
Climate normal
+3
0
10 February, Monday. day, -2°; night, -5°; partly cloudy
11
0
−6
11 February, tue
0
−6
Feels like
−10
733 mmHg
96%
8.1
m/s
NW
Climate normal
+5
−1
11 February, Tuesday. day, 0°; night, -6°; snow
12
−4
−7
12 February, wed
−4
−7
Feels like
−15
732 mmHg
85%
9.7
m/s
W
Climate normal
+3
+1
12 February, Wednesday. day, -4°; night, -7°; partly cloudy
13
0
+1
13 February, thu
0
+1
Feels like
−9
742 mmHg
88%
5.5
m/s
SW
Climate normal
+3
−1
13 February, Thursday. day, 0°; night, 1°; sleet
14
+4
−8
14 February, fri
+4
−8
Feels like
−6
742 mmHg
91%
7.6
m/s
NW
Climate normal
+5
−1
14 February, Friday. day, 4°; night, -8°; sleet
15
−1
−5
15 February, sat
−1
−5
Feels like
−10
758 mmHg
66%
2.4
m/s
NW
Climate normal
+4
0
15 February, Saturday. day, -1°; night, -5°; mostly clear
16
0
−1
16 February, sun
0
−1
Feels like
−5
753 mmHg
87%
2.5
m/s
SE
Climate normal
+2
−1
16 February, Sunday. day, 0°; night, -1°; sleet
17
+3
0
17 February, mon
+3
0
Feels like
−3
752 mmHg
98%
2.6
m/s
E
Climate normal
+5
−1
17 February, Monday. day, 3°; night, 0°; partly cloudy
18
+9
+10
18 February, tue
+9
+10
Feels like
+1
745 mmHg
100%
4.5
m/s
SW
Climate normal
+9
+2
18 February, Tuesday. day, 9°; night, 10°; sleet
Average data for 10 years
Next, the average data for 10 years
19
+6
+3
19 February, wed
+6
+3
Feels like
+1
754 mmHg
62%
7.3
m/s
W
19 February, Wednesday. day, 6°; night, 3°; clear
20
+5
+1
20 February, thu
+5
+1
Feels like
0
758 mmHg
61%
5.5
m/s
W
20 February, Thursday. day, 5°; night, 1°; partly cloudy
21
+6
+1
21 February, fri
+6
+1
Feels like
+2
757 mmHg
67%
5.5
m/s
SW
21 February, Friday. day, 6°; night, 1°; overcast
22
+7
+2
22 February, sat
+7
+2
Feels like
+3
756 mmHg
76%
4.1
m/s
SE
22 February, Saturday. day, 7°; night, 2°; rain
Average for 30 days
7
sunny days
7
days with precipitation
16
cloudy days
7 sunny days; 7 days with precipitation; 16 cloudy days;
70
%
air humidity
4.4
m/s
Wind
NW
8
mm of precipitation
(1% of annual average)
air humidity 70%; 8 millimeters of precipitation (1% of annual average); Wind north-westerly 4.4 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
NW
NW
NW
NE
NW
SW
W
W
W
W
W
W
E
S
NW
W
NW
W
NW
NE
N
E
NW
W
SW
NW
NW
SE
E
SW
20
Average data for 10 years
21
22
23
24
25
26
27
28
29
30
31
1
February
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Daytime temperature
Night-time temperature
