Herndon Tomorrow Weather – Forecast, Trends & News - United States of America
Herndon, Virginia, United States of America
Updated every 10 min
Today Conditions
4.5°C
/
-2.4°C
Overcast
Temperature AVG :
1.1°C
Wind:
24.1 km/h
Humidity: 84%
Visibility:
10.0 km
Astronomy
Sunrise
07:18 AM
Sunset
04:47 PM
Moon Phase
Waning Gibbous
UV Index
0.1 Good for going out
Moon illumination
69%
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 24-Hour Tomorrow Forecast
00:00
Partly Cloudy
-2.1°C
15.1 km/h
0%
01:00
Clear
-1.7°C
16.6 km/h
0%
02:00
Clear
-1.5°C
16.2 km/h
0%
03:00
Clear
-1.3°C
15.5 km/h
0%
04:00
Clear
-1.3°C
17.3 km/h
0%
05:00
Clear
-1.2°C
17.6 km/h
0%
06:00
Clear
-0.9°C
18.0 km/h
0%
07:00
Clear
-0.6°C
19.1 km/h
0%
08:00
Sunny
-0.4°C
19.4 km/h
0%
09:00
Overcast
-0.0°C
22.3 km/h
0%
10:00
Overcast
0.3°C
23.0 km/h
0%
11:00
Overcast
0.7°C
23.8 km/h
0%
12:00
Overcast
1.3°C
24.1 km/h
0%
13:00
Overcast
1.8°C
23.0 km/h
0%
14:00
Overcast
2.3°C
23.8 km/h
0%
15:00
Overcast
3.0°C
22.3 km/h
0%
16:00
Overcast
3.5°C
20.9 km/h
0%
17:00
Overcast
4.0°C
20.2 km/h
0%
18:00
Overcast
4.2°C
20.5 km/h
0%
19:00
Partly Cloudy
3.6°C
19.8 km/h
0%
20:00
Clear
3.1°C
16.2 km/h
0%
21:00
Clear
2.8°C
13.3 km/h
0%
22:00
Clear
3.5°C
13.0 km/h
0%
23:00
Patchy rain nearby
2.5°C
16.6 km/h
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%