Herndon hour by hour Weather up to 120 hours – Forecast, Trends & News - United States of America
Herndon, Virginia, United States of America
Updated every 10 min
Today Conditions
3.7°C
/
-8.0°C
Sunny
Temperature AVG :
-3.2°C
Wind:
19.8 km/h
Humidity: 55%
Visibility:
10.0 km
Astronomy
Sunrise
07:17 AM
Sunset
04:47 PM
Moon Phase
Waning Gibbous
UV Index
0.3 Good for going out
Moon illumination
78%
Air Quality
1
Good
AQI
PM2.5
9.95 µg/m³
PM10
10.65 µg/m³
O₃
64.0 μg/m3
NO₂
8.65 μg/m3
Herndon next 48-Hour Forecast
Wind
10.1 km/h
Feels Like
-7.8°C
Humidity
43%
Dew Point
-15.0°C
°
Pressure
1027.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
9.4 km/h
Feels Like
-8.1°C
Humidity
45%
Dew Point
-15.2°C
°
Pressure
1026.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
8.6 km/h
Feels Like
-8.7°C
Humidity
43%
Dew Point
-16.3°C
°
Pressure
1026.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
7.2 km/h
Feels Like
-8.9°C
Humidity
48%
Dew Point
-15.3°C
°
Pressure
1025.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
6.5 km/h
Feels Like
-9.1°C
Humidity
52%
Dew Point
-14.5°C
°
Pressure
1025.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
5.8 km/h
Feels Like
-9.0°C
Humidity
59%
Dew Point
-13.2°C
°
Pressure
1025.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
4.7 km/h
Feels Like
-8.9°C
Humidity
63%
Dew Point
-12.7°C
°
Pressure
1025.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
4.0 km/h
Feels Like
-9.8°C
Humidity
60%
Dew Point
-13.5°C
°
Pressure
1025.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
1.4 km/h
Feels Like
-10.1°C
Humidity
59%
Dew Point
-14.4°C
°
Pressure
1025.0 mb
UV Index
0.0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
0.7 km/h
Feels Like
-8.1°C
Humidity
61%
Dew Point
-14.1°C
°
Pressure
1026.0 mb
UV Index
0.4
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
5.0 km/h
Feels Like
-6.6°C
Humidity
50%
Dew Point
-14.9°C
°
Pressure
1026.0 mb
UV Index
0.9
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
6.8 km/h
Feels Like
-5.7°C
Humidity
42%
Dew Point
-13.6°C
°
Pressure
1024.0 mb
UV Index
1.3
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
10.4 km/h
Feels Like
-3.2°C
Humidity
35%
Dew Point
-14.3°C
°
Pressure
1024.0 mb
UV Index
1.4
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
14.4 km/h
Feels Like
-1.5°C
Humidity
31%
Dew Point
-12.7°C
°
Pressure
1023.0 mb
UV Index
1.1
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
15.5 km/h
Feels Like
-3.5°C
Humidity
32%
Dew Point
-11.5°C
°
Pressure
1021.0 mb
UV Index
0.8
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
18.0 km/h
Feels Like
-3.3°C
Humidity
46%
Dew Point
-10.9°C
°
Pressure
1019.0 mb
UV Index
0.5
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
18.4 km/h
Feels Like
-2.6°C
Humidity
48%
Dew Point
-8.6°C
°
Pressure
1018.0 mb
UV Index
0.2
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.2 km/h
Feels Like
-4.3°C
Humidity
60%
Dew Point
-5.0°C
°
Pressure
1018.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.6 km/h
Feels Like
-4.3°C
Humidity
66%
Dew Point
-7.2°C
°
Pressure
1017.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
17.6 km/h
Feels Like
-6.3°C
Humidity
66%
Dew Point
-5.2°C
°
Pressure
1017.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
18.4 km/h
Feels Like
-7.3°C
Humidity
72%
Dew Point
-7.1°C
°
Pressure
1017.0 mb
UV Index
0
( Good for going out
)
Visibility
16.0 km
Chance of rain
0%
Wind
17.6 km/h
Feels Like
-8.1°C
Humidity
75%
Dew Point
-6.4°C
°
Pressure
1016.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.8 km/h
Feels Like
-8.1°C
Humidity
82%
Dew Point
-5.3°C
°
Pressure
1015.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.9 km/h
Feels Like
-7.1°C
Humidity
88%
Dew Point
-4.0°C
°
Pressure
1014.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
15.1 km/h
Feels Like
-7.2°C
Humidity
90%
Dew Point
-3.9°C
°
Pressure
1013.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.6 km/h
Feels Like
-7.2°C
Humidity
88%
Dew Point
-3.5°C
°
Pressure
1012.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.2 km/h
Feels Like
-6.9°C
Humidity
87%
Dew Point
-3.3°C
°
Pressure
1012.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
15.5 km/h
Feels Like
-6.5°C
Humidity
87%
Dew Point
-3.2°C
°
Pressure
1011.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
17.3 km/h
Feels Like
-6.2°C
Humidity
87%
Dew Point
-3.0°C
°
Pressure
1010.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
17.6 km/h
Feels Like
-6.0°C
Humidity
88%
Dew Point
-3.0°C
°
Pressure
1009.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
18.0 km/h
Feels Like
-6.0°C
Humidity
88%
Dew Point
-2.9°C
°
Pressure
1007.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.1 km/h
Feels Like
-5.9°C
Humidity
87%
Dew Point
-2.6°C
°
Pressure
1007.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.4 km/h
Feels Like
-6.0°C
Humidity
87%
Dew Point
-2.1°C
°
Pressure
1005.0 mb
UV Index
0.0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
22.3 km/h
Feels Like
-5.7°C
Humidity
85%
Dew Point
-2.3°C
°
Pressure
1004.0 mb
UV Index
0.2
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
23.0 km/h
Feels Like
-5.2°C
Humidity
83%
Dew Point
-2.2°C
°
Pressure
1004.0 mb
UV Index
0.5
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
23.8 km/h
Feels Like
-4.8°C
Humidity
84%
Dew Point
-1.7°C
°
Pressure
1003.0 mb
UV Index
0.6
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
24.1 km/h
Feels Like
-4.1°C
Humidity
83%
Dew Point
-1.4°C
°
Pressure
1001.0 mb
UV Index
0.6
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
23.0 km/h
Feels Like
-3.1°C
Humidity
82%
Dew Point
-0.9°C
°
Pressure
1000.0 mb
UV Index
0.6
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
23.8 km/h
Feels Like
-2.3°C
Humidity
82%
Dew Point
-0.4°C
°
Pressure
999.0 mb
UV Index
0.5
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
22.3 km/h
Feels Like
-1.4°C
Humidity
82%
Dew Point
0.1°C
°
Pressure
998.0 mb
UV Index
0.3
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
20.9 km/h
Feels Like
-0.6°C
Humidity
81%
Dew Point
0.6°C
°
Pressure
998.0 mb
UV Index
0.1
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
20.2 km/h
Feels Like
-0.0°C
Humidity
79%
Dew Point
0.9°C
°
Pressure
998.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
20.5 km/h
Feels Like
0.3°C
Humidity
79%
Dew Point
1.1°C
°
Pressure
998.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.8 km/h
Feels Like
-0.3°C
Humidity
80%
Dew Point
1.2°C
°
Pressure
999.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.2 km/h
Feels Like
-0.7°C
Humidity
83%
Dew Point
0.3°C
°
Pressure
999.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
13.3 km/h
Feels Like
-1.0°C
Humidity
82%
Dew Point
-0.2°C
°
Pressure
1000.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
13.0 km/h
Feels Like
-0.2°C
Humidity
82%
Dew Point
-0.4°C
°
Pressure
1000.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.6 km/h
Feels Like
-1.4°C
Humidity
83%
Dew Point
1.7°C
°
Pressure
999.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
79%
Herndon 5-Day Forecast
Today
Sunny
3.7°C
/
-8.0°C
0%
2025-12-10
Overcast
4.5°C
/
-2.4°C
0%
2025-12-11
Sunny
2.8°C
/
-3.6°C
0%
2025-12-12
Overcast
0.5°C
/
-3.7°C
0%
2025-12-13
Patchy rain nearby
3.4°C
/
-1.8°C
85%