10-day forecast for Herndon, VA: 41° to 74°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Tuesday, November 3
74° · 0.44 in
Worst day: Thursday, November 5
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 0473° / 49°0
Morning55°feels 54°
Afternoon73°feels 72°
Evening60°feels 60°
Overnight51°feels 50°
73 °
Herndon, Wednesday, 4 November
Mostly clear. High 73°, low 49°.
Pressure30.09 inHg
Wind9.2 mph S
Humidity60%
Visibility6.2 mi
Dew point56°
Thu, 0574° / 57°0.44
Morning64°feels 65°
Afternoon73°feels 74°
Evening67°feels 68°
Overnight59°feels 59°
74 °
Herndon, Thursday, 5 November
Rain. High 74°, low 57°.
Pressure29.88 inHg
Wind11.7 mph S
Humidity86%
Visibility6.2 mi
Dew point65°
Fri, 0671° / 57°0
Morning58°feels 58°
Afternoon71°feels 70°
Evening58°feels 57°
Overnight62°feels 62°
71 °
Herndon, Friday, 6 November
Overcast. High 71°, low 57°.
Pressure29.88 inHg
Wind3.6 mph N
Humidity57%
Visibility6.2 mi
Dew point53°
Sat, 0759° / 47°0
Morning55°feels 53°
Afternoon58°feels 56°
Evening57°feels 54°
Overnight55°feels 54°
59 °
Herndon, Saturday, 7 November
Partly cloudy. High 59°, low 47°.
Pressure29.91 inHg
Wind10.8 mph NW
Humidity47%
Visibility6.2 mi
Dew point38°
Sun, 0858° / 48°0
Morning50°feels 47°
Afternoon56°feels 54°
Evening57°feels 55°
Overnight48°feels 45°
58 °
Herndon, Sunday, 8 November
Clear. High 58°, low 48°.
Pressure30.00 inHg
Wind12.2 mph NW
Humidity61%
Visibility—
Dew point41°
Mon, 0958° / 44°0
Morning47°feels 44°
Afternoon54°feels 52°
Evening56°feels 53°
Overnight46°feels 44°
58 °
Herndon, Monday, 9 November
Clear. High 58°, low 44°.
Pressure30.15 inHg
Wind11.2 mph NW
Humidity60%
Visibility—
Dew point38°
Tue, 1064° / 41°0
Morning46°feels 43°
Afternoon55°feels 53°
Evening61°feels 59°
Overnight50°feels 47°
64 °
Herndon, Tuesday, 10 November
Clear. High 64°, low 41°.
Pressure30.12 inHg
Wind9.7 mph NW
Humidity47%
Visibility—
Dew point33°
Wed, 1161° / 44°0
Morning49°feels 46°
Afternoon55°feels 53°
Evening57°feels 55°
Overnight48°feels 47°
61 °
Herndon, Wednesday, 11 November
Partly cloudy. High 61°, low 44°.
Pressure30.18 inHg
Wind7 mph N
Humidity48%
Visibility—
Dew point34°
Thu, 1252° / 47°0.02
Morning50°feels 49°
Afternoon52°feels 49°
Evening50°feels 49°
Overnight49°feels 48°
52 °
Herndon, Thursday, 12 November
Light rain. High 52°, low 47°.
Pressure30.12 inHg
Wind5.7 mph SE
Humidity57%
Visibility—
Dew point37°
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.