10-day forecast for McLean, VA: 61° to 94°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Monday, August 10
91° · 0.19 in
Worst day: Wednesday, August 12
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1093° / 73°0.01
Morning77°feels 77°
Afternoon90°feels 88°
Evening86°feels 87°
Overnight76°feels 76°
93 °
McLean, Monday, 10 August
Light rain. High 93°, low 73°.
Pressure30.00 inHg
Wind3.7 mph W
Humidity33%
Visibility6.2 mi
Dew point60°
Tue, 1194° / 71°0.06
Morning74°feels 74°
Afternoon91°feels 92°
Evening84°feels 85°
Overnight76°feels 77°
94 °
McLean, Tuesday, 11 August
Light rain. High 94°, low 71°.
Pressure29.94 inHg
Wind8.7 mph NW
Humidity48%
Visibility6.2 mi
Dew point65°
Wed, 1291° / 72°0.19
Morning74°feels 74°
Afternoon88°feels 89°
Evening83°feels 87°
Overnight72°feels 73°
91 °
McLean, Wednesday, 12 August
Rain. High 91°, low 72°.
Pressure29.80 inHg
Wind8.2 mph W
Humidity51%
Visibility6.2 mi
Dew point63°
Thu, 1387° / 72°0.01
Morning76°feels 76°
Afternoon85°feels 84°
Evening77°feels 77°
Overnight73°feels 74°
87 °
McLean, Thursday, 13 August
Light rain. High 87°, low 72°.
Pressure29.83 inHg
Wind12.4 mph NW
Humidity35%
Visibility—
Dew point54°
Fri, 1481° / 65°0
Morning70°feels 69°
Afternoon78°feels 78°
Evening72°feels 72°
Overnight68°feels 68°
81 °
McLean, Friday, 14 August
Overcast. High 81°, low 65°.
Pressure30.06 inHg
Wind7.4 mph SW
Humidity33%
Visibility—
Dew point46°
Sat, 1581° / 62°0
Morning68°feels 68°
Afternoon78°feels 78°
Evening72°feels 71°
Overnight67°feels 66°
81 °
McLean, Saturday, 15 August
Overcast. High 81°, low 62°.
Pressure30.15 inHg
Wind9.2 mph NW
Humidity30%
Visibility—
Dew point44°
Sun, 1677° / 61°0
Morning67°feels 66°
Afternoon76°feels 75°
Evening72°feels 71°
Overnight68°feels 67°
77 °
McLean, Sunday, 16 August
Overcast. High 77°, low 61°.
Pressure30.15 inHg
Wind4.6 mph N
Humidity32%
Visibility—
Dew point43°
Mon, 1783° / 69°0.07
Morning73°feels 73°
Afternoon81°feels 82°
Evening71°feels 72°
Overnight69°feels 69°
83 °
McLean, Monday, 17 August
Light rain. High 83°, low 69°.
Pressure29.97 inHg
Wind4.7 mph E
Humidity51%
Visibility—
Dew point61°
Tue, 1887° / 66°0
Morning74°feels 74°
Afternoon85°feels 84°
Evening76°feels 77°
Overnight72°feels 73°
87 °
McLean, Tuesday, 18 August
Clear. High 87°, low 66°.
Pressure30.00 inHg
Wind5 mph SE
Humidity36%
Visibility—
Dew point55°
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 McLean, 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.