10-day forecast for Herndon, VA: 38° to 73°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Friday, October 30
68° · 0.8 in
Worst day: Thursday, November 5
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 3073° / 52°0
Morning57°feels 56°
Afternoon73°feels 71°
Evening58°feels 56°
Overnight55°feels 55°
73 °
Herndon, Friday, 30 October
Clear. High 73°, low 52°.
Pressure30.18 inHg
Wind9.9 mph NW
Humidity52%
Visibility6.2 mi
Dew point51°
Sat, 3160° / 46°0
Morning47°feels 44°
Afternoon59°feels 57°
Evening54°feels 52°
Overnight49°feels 46°
60 °
Herndon, Saturday, 31 October
Overcast. High 60°, low 46°.
Pressure30.47 inHg
Wind2.9 mph N
Humidity55%
Visibility6.2 mi
Dew point41°
Sun, 0161° / 50°0
Morning50°feels 49°
Afternoon60°feels 58°
Evening55°feels 53°
Overnight51°feels 50°
61 °
Herndon, Sunday, 1 November
Overcast. High 61°, low 50°.
Pressure30.50 inHg
Wind4.2 mph S
Humidity50%
Visibility6.2 mi
Dew point41°
Mon, 0268° / 47°0
Morning47°feels 45°
Afternoon68°feels 67°
Evening65°feels 64°
Overnight49°feels 48°
68 °
Herndon, Monday, 2 November
Overcast. High 68°, low 47°.
Pressure30.36 inHg
Wind5.8 mph S
Humidity56%
Visibility6.2 mi
Dew point46°
Tue, 0372° / 50°0
Morning56°feels 55°
Afternoon64°feels 63°
Evening68°feels 67°
Overnight56°feels 55°
72 °
Herndon, Tuesday, 3 November
Clear. High 72°, low 50°.
Pressure30.27 inHg
Wind7.7 mph SE
Humidity55%
Visibility—
Dew point45°
Wed, 0469° / 50°0
Morning54°feels 53°
Afternoon62°feels 62°
Evening65°feels 65°
Overnight58°feels 57°
69 °
Herndon, Wednesday, 4 November
Partly cloudy. High 69°, low 50°.
Pressure30.21 inHg
Wind9.4 mph SE
Humidity76%
Visibility—
Dew point52°
Thu, 0568° / 58°0.8
Morning61°feels 61°
Afternoon65°feels 65°
Evening65°feels 66°
Overnight61°feels 61°
68 °
Herndon, Thursday, 5 November
Heavy rain. High 68°, low 58°.
Pressure29.83 inHg
Wind12.2 mph SE
Humidity92%
Visibility—
Dew point61°
Fri, 0659° / 46°0
Morning58°feels 58°
Afternoon57°feels 56°
Evening53°feels 50°
Overnight48°feels 44°
59 °
Herndon, Friday, 6 November
Partly cloudy. High 59°, low 46°.
Pressure29.74 inHg
Wind16.6 mph NW
Humidity66%
Visibility—
Dew point47°
Sat, 0753° / 38°0
Morning42°feels 38°
Afternoon49°feels 46°
Evening51°feels 48°
Overnight43°feels 42°
53 °
Herndon, Saturday, 7 November
Partly cloudy. High 53°, low 38°.
Pressure30.33 inHg
Wind7.4 mph NW
Humidity46%
Visibility—
Dew point27°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Herndon, VA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.