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in Herndon mainly cloudy, no precipitation, +15 °C

Herndon 14-Day Weather Forecast

Air temperature, °C

+17
+6
+19
+8
+9
+1
+12
−2
+14
+5
+19
+8
+18
+10
+19
+9
+18
+9
+12
+9
+19
+12
+17
+10
+11
+7
+10
+5

Real feel, °C

+17
+6
+19
+5
+7
−2
+11
−2
+14
+5
+19
+8
+18
+10
+19
+9
+18
+9
+12
+9
+19
+11
+17
+10
+9
+6
+8
+3

Average daily temperature, °C

+13
+15
+4
+6
+9
+13
+14
+14
+14
+11
+14
+13
+9
+7

Average wind speed, m/s

7
8
7
6
3
2
2
2
3
3
4
4
3
4

Wind gusts, m/s

16
18
17
12
6
5
5
5
7
9
9
11
12
11

Wind direction

S
NW
N
N
N
N
SE
S
E
SW
W
N
N
NW

Precipitation in liquid equivalent, mm

0.8
11.4
0
1.2
5.2
0
0
0
0
14.2
0.1
1.7
35.1
2.7
0
0
0
0
0
0
0
0

Pressure, mmHg

753
748
752
741
765
756
766
762
761
758
761
758
759
756
756
753
757
752
751
745
751
747
748
744
752
748
752
751

Relative humidity, %

81
76
41
60
87
86
83
83
84
87
79
82
77
70
2
1
5
5
1
2
3
2
2
0
2
1
2
2
2
3
1
1
2
2
2
2
2
2
2
2
2
2