10-day forecast for Herndon, WV: 54° to 90°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
90°
Best day: Monday, August 10
89° · 1.41 in
Worst day: Wednesday, August 12
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1090° / 67°0
Morning70°feels 71°
Afternoon83°feels 83°
Evening77°feels 78°
Overnight68°feels 69°
90 °
Herndon, Monday, 10 August
Clear. High 90°, low 67°.
Pressure30.12 inHg
Wind7.4 mph W
Humidity57%
Visibility6.2 mi
Dew point64°
Tue, 1188° / 64°0.56
Morning66°feels 67°
Afternoon86°feels 88°
Evening68°feels 68°
Overnight68°feels 69°
88 °
Herndon, Tuesday, 11 August
Heavy rain. High 88°, low 64°.
Pressure30.06 inHg
Wind10.4 mph W
Humidity69%
Visibility6.2 mi
Dew point68°
Wed, 1289° / 63°1.41
Morning67°feels 67°
Afternoon89°feels 91°
Evening65°feels 66°
Overnight64°feels 65°
89 °
Herndon, Wednesday, 12 August
Heavy rain. High 89°, low 63°.
Pressure29.88 inHg
Wind11.4 mph W
Humidity71%
Visibility6.2 mi
Dew point70°
Thu, 1377° / 62°0.03
Morning65°feels 66°
Afternoon68°feels 69°
Evening69°feels 69°
Overnight62°feels 62°
77 °
Herndon, Thursday, 13 August
Light rain. High 77°, low 62°.
Pressure30.00 inHg
Wind7.7 mph W
Humidity95%
Visibility—
Dew point65°
Fri, 1465° / 59°0.77
Morning64°feels 64°
Afternoon61°feels 62°
Evening62°feels 63°
Overnight61°feels 62°
65 °
Herndon, Friday, 14 August
Heavy rain. High 65°, low 59°.
Pressure30.12 inHg
Wind7.3 mph NE
Humidity99%
Visibility—
Dew point61°
Sat, 1572° / 55°0
Morning59°feels 59°
Afternoon64°feels 64°
Evening62°feels 61°
Overnight57°feels 56°
72 °
Herndon, Saturday, 15 August
Overcast. High 72°, low 55°.
Pressure30.24 inHg
Wind4.4 mph N
Humidity72%
Visibility—
Dew point55°
Sun, 1680° / 54°0
Morning64°feels 64°
Afternoon78°feels 79°
Evening67°feels 68°
Overnight63°feels 63°
80 °
Herndon, Sunday, 16 August
Partly cloudy. High 80°, low 54°.
Pressure30.12 inHg
Wind7.6 mph W
Humidity55%
Visibility—
Dew point60°
Mon, 1778° / 60°0
Morning68°feels 69°
Afternoon77°feels 77°
Evening67°feels 67°
Overnight61°feels 61°
78 °
Herndon, Monday, 17 August
Overcast. High 78°, low 60°.
Pressure30.00 inHg
Wind8.6 mph NW
Humidity55%
Visibility—
Dew point59°
Tue, 1880° / 55°0
Morning65°feels 65°
Afternoon78°feels 78°
Evening65°feels 65°
Overnight60°feels 60°
80 °
Herndon, Tuesday, 18 August
Clear. High 80°, low 55°.
Pressure30.00 inHg
Wind5.6 mph NW
Humidity36%
Visibility—
Dew point48°
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, WV 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.