Monthly Historical AveragesHerndon, VA
Average Temperature
High
13°
Feels 12
Low
2°
Feels 0
Average Precipitation
9 Days
43.4mm
7.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, March 30, 2026
Day
21°Feels 21
Wind
22 km/h SW
Gust
33 km/h
Humidity
47%
P.O.P
60%
Rain
1-3 mm
Night
14°Feels 13
Wind
20 km/h SW
Gust
30 km/h
Humidity
78%
P.O.P
40%
Rain
<1 mm
Historical AveragesMar 30
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity