10-day forecast for Flat Run, VA: 55° to 95°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
90°
Best day: Sunday, August 9
69° · 1.02 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0990° / 71°0
Morning74°feels 76°
Afternoon90°feels 90°
Evening77°feels 77°
Overnight71°feels 72°
90 °
Flat Run, Sunday, 9 August
Overcast. High 90°, low 71°.
Pressure30.03 inHg
Wind2.1 mph NW
Humidity42%
Visibility6.2 mi
Dew point67°
Mon, 1095° / 71°0.19
Morning75°feels 75°
Afternoon92°feels 94°
Evening85°feels 86°
Overnight73°feels 74°
95 °
Flat Run, Monday, 10 August
Rain. High 95°, low 71°.
Pressure30.03 inHg
Wind3.6 mph N
Humidity37%
Visibility6.2 mi
Dew point64°
Tue, 1195° / 68°0.07
Morning72°feels 73°
Afternoon90°feels 91°
Evening83°feels 85°
Overnight69°feels 69°
95 °
Flat Run, Tuesday, 11 August
Light rain. High 95°, low 68°.
Pressure29.97 inHg
Wind3.9 mph W
Humidity44%
Visibility6.2 mi
Dew point63°
Wed, 1291° / 71°0.01
Morning74°feels 75°
Afternoon89°feels 91°
Evening82°feels 84°
Overnight72°feels 73°
91 °
Flat Run, Wednesday, 12 August
Light rain. High 91°, low 71°.
Pressure29.83 inHg
Wind1.7 mph NW
Humidity65%
Visibility6.2 mi
Dew point67°
Thu, 1393° / 71°0.06
Morning80°feels 80°
Afternoon91°feels 91°
Evening78°feels 78°
Overnight75°feels 75°
93 °
Flat Run, Thursday, 13 August
Light rain. High 93°, low 71°.
Pressure29.80 inHg
Wind8.5 mph NW
Humidity35%
Visibility—
Dew point59°
Fri, 1469° / 61°1.02
Morning63°feels 63°
Afternoon63°feels 63°
Evening61°feels 62°
Overnight61°feels 61°
69 °
Flat Run, Friday, 14 August
Heavy rain. High 69°, low 61°.
Pressure30.03 inHg
Wind7.6 mph NE
Humidity91%
Visibility—
Dew point60°
Sat, 1578° / 55°0
Morning65°feels 65°
Afternoon76°feels 75°
Evening67°feels 66°
Overnight63°feels 62°
78 °
Flat Run, Saturday, 15 August
Clear. High 78°, low 55°.
Pressure30.21 inHg
Wind6.8 mph N
Humidity40%
Visibility—
Dew point49°
Sun, 1681° / 56°0
Morning67°feels 66°
Afternoon79°feels 79°
Evening68°feels 68°
Overnight64°feels 63°
81 °
Flat Run, Sunday, 16 August
Clear. High 81°, low 56°.
Pressure30.27 inHg
Wind6.2 mph E
Humidity37%
Visibility—
Dew point50°
Mon, 1790° / 61°0
Morning73°feels 73°
Afternoon87°feels 87°
Evening79°feels 79°
Overnight73°feels 73°
90 °
Flat Run, Monday, 17 August
Partly cloudy. High 90°, low 61°.
Pressure30.09 inHg
Wind10.3 mph S
Humidity40%
Visibility—
Dew point58°
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 Flat Run, 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.