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
3.2°C
/
-4.8°C
Sunny
Temperature AVG :
-0.9°C
Wind:
19.4 km/h
Humidity: 60%
Visibility:
10.0 km
Astronomy
Sunrise
07:17 AM
Sunset
04:47 PM
Moon Phase
Waning Gibbous
UV Index
0.2 Good for going out
Moon illumination
87%
Air Quality
1
Good
AQI
PM2.5
5.95 µg/m³
PM10
6.85 µg/m³
O₃
61.0 μg/m3
NO₂
11.05 μg/m3
Herndon next 24-Hour Forecast
Wind
9.0 km/h
Feels Like
-2.4°C
Humidity
96%
Dew Point
-1.3°C
°
Pressure
1021.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
10.4 km/h
Feels Like
-3.3°C
Humidity
90%
Dew Point
-3.0°C
°
Pressure
1021.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
14.0 km/h
Feels Like
-3.7°C
Humidity
92%
Dew Point
-3.0°C
°
Pressure
1021.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
18.4 km/h
Feels Like
-4.0°C
Humidity
94%
Dew Point
-2.9°C
°
Pressure
1021.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.1 km/h
Feels Like
-4.6°C
Humidity
88%
Dew Point
-3.4°C
°
Pressure
1021.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.4 km/h
Feels Like
-5.0°C
Humidity
83%
Dew Point
-3.8°C
°
Pressure
1022.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.4 km/h
Feels Like
-5.6°C
Humidity
80%
Dew Point
-4.1°C
°
Pressure
1022.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
18.4 km/h
Feels Like
-5.9°C
Humidity
66%
Dew Point
-6.5°C
°
Pressure
1023.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
17.3 km/h
Feels Like
-6.1°C
Humidity
65%
Dew Point
-6.7°C
°
Pressure
1024.0 mb
UV Index
0.0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
17.6 km/h
Feels Like
-6.2°C
Humidity
63%
Dew Point
-7.3°C
°
Pressure
1025.0 mb
UV Index
0.3
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.1 km/h
Feels Like
-5.6°C
Humidity
60%
Dew Point
-7.7°C
°
Pressure
1026.0 mb
UV Index
0.5
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.4 km/h
Feels Like
-5.2°C
Humidity
57%
Dew Point
-7.5°C
°
Pressure
1026.0 mb
UV Index
1.0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
19.4 km/h
Feels Like
-4.0°C
Humidity
51%
Dew Point
-8.6°C
°
Pressure
1026.0 mb
UV Index
0.9
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
18.7 km/h
Feels Like
-2.7°C
Humidity
43%
Dew Point
-9.3°C
°
Pressure
1026.0 mb
UV Index
1.0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
17.6 km/h
Feels Like
-1.7°C
Humidity
32%
Dew Point
-11.9°C
°
Pressure
1026.0 mb
UV Index
0.6
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
16.6 km/h
Feels Like
-1.0°C
Humidity
33%
Dew Point
-11.3°C
°
Pressure
1025.0 mb
UV Index
0.4
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
14.8 km/h
Feels Like
-2.2°C
Humidity
32%
Dew Point
-11.9°C
°
Pressure
1025.0 mb
UV Index
0.1
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
12.6 km/h
Feels Like
-2.2°C
Humidity
29%
Dew Point
-15.7°C
°
Pressure
1024.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
11.9 km/h
Feels Like
-4.5°C
Humidity
34%
Dew Point
-14.4°C
°
Pressure
1025.0 mb
UV Index
0
( Good for going out
)
Visibility
16.0 km
Chance of rain
0%
Wind
10.8 km/h
Feels Like
-5.8°C
Humidity
48%
Dew Point
-11.8°C
°
Pressure
1026.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
9.4 km/h
Feels Like
-6.7°C
Humidity
53%
Dew Point
-11.6°C
°
Pressure
1027.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
8.6 km/h
Feels Like
-7.3°C
Humidity
57%
Dew Point
-11.5°C
°
Pressure
1027.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
8.3 km/h
Feels Like
-7.4°C
Humidity
59%
Dew Point
-11.5°C
°
Pressure
1027.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Wind
6.8 km/h
Feels Like
-7.8°C
Humidity
48%
Dew Point
-13.7°C
°
Pressure
1027.0 mb
UV Index
0
( Good for going out
)
Visibility
10.0 km
Chance of rain
0%
Herndon 5-Day Forecast
Today
Sunny
3.2°C
/
-4.8°C
0%
2025-12-09
Partly Cloudy
4.1°C
/
-6.3°C
0%
2025-12-10
Overcast
5.9°C
/
-0.3°C
0%
2025-12-11
Partly Cloudy
6.2°C
/
-0.6°C
0%
2025-12-12
Patchy rain nearby
4.8°C
/
-1.4°C
86%