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Chantilly, VA

89°F
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Chantilly, VA Weather
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July 9 - July 23

Thu 7/9

89° /69°
97%
Humid this morning; partly sunny with a couple of showers and a heavy thunderstorm; thunderstorms can bring flash flooding and localized damaging wind gusts
alerts

Severe Thunderstorm Watch

2:30 PM Thursday - 10:00 PM Thursday
alerts

Flood Watch

2:00 PM Thursday - 11:00 PM Thursday

RealFeel®107°

RealFeel Shade™98°

Max UV Index10.0 (Very High)

WindSW 7 mph

Hours of Precipitation4.5

Hours of Rain4.5

Fri 7/10

90° /73°
80%
Humid with times of clouds and sun; a heavy thunderstorm in the afternoon; thunderstorms can bring flash flooding and localized damaging wind gusts

RealFeel®100°

RealFeel Shade™93°

Max UV Index7.0 (High)

WindW 7 mph

Hours of Precipitation1

Hours of Rain1

Sat 7/11

85° /69°
87%
Rather cloudy and humid; a couple of morning showers followed by a thunderstorm in spots in the afternoon

RealFeel®92°

RealFeel Shade™89°

Max UV Index3.0 (Moderate)

WindNNW 7 mph

Hours of Precipitation1.5

Hours of Rain1.5

Sun 7/12

85° /66°
25%
Times of clouds and sun; nicest day of the week

RealFeel®93°

RealFeel Shade™86°

Max UV Index6.0 (High)

WindENE 6 mph

Mon 7/13

85° /62°
9%
Partly sunny

RealFeel®96°

RealFeel Shade™84°

Max UV Index11.0 (Extreme)

WindSE 2 mph

Tue 7/14

90° /64°
25%
Mostly sunny

RealFeel®97°

RealFeel Shade™88°

Max UV Index11.0 (Extreme)

WindS 5 mph

Wed 7/15

98° /71°
9%
Mostly sunny and very hot with the temperature approaching the record high of 99 set in 2024

RealFeel®102°

RealFeel Shade™97°

Max UV Index11.0 (Extreme)

WindWSW 7 mph

Thu 7/16

93° /69°
1%
Mostly sunny and hot

RealFeel®104°

RealFeel Shade™92°

Max UV Index11.0 (Extreme)

WindW 5 mph

Fri 7/17

92° /68°
0%
Hot with plenty of sunshine

RealFeel®93°

RealFeel Shade™89°

Max UV Index11.0 (Extreme)

WindWNW 9 mph

Sat 7/18

94° /71°
55%
Hot with more sunshine than clouds; a thunderstorm in spots in the afternoon

RealFeel®96°

RealFeel Shade™92°

Max UV Index11.0 (Extreme)

WindW 7 mph

Hours of Precipitation1

Hours of Rain1

Sun 7/19

89° /66°
12%
Uncomfortably humid with sun through high clouds

RealFeel®103°

RealFeel Shade™97°

Max UV Index6.0 (High)

WindSW 5 mph

Mon 7/20

90° /68°
2%
Mostly sunny and less humid

RealFeel®90°

RealFeel Shade™87°

Max UV Index10.0 (Very High)

WindWNW 10 mph

Tue 7/21

91° /67°
0%
Intervals of clouds and sunshine

RealFeel®92°

RealFeel Shade™88°

Max UV Index10.0 (Very High)

WindNW 10 mph

Wed 7/22

90° /65°
25%
Mostly sunny

RealFeel®98°

RealFeel Shade™89°

Max UV Index10.0 (Very High)

WindN 1 mph

Thu 7/23

83° /64°
20%
Sunny to partly cloudy

RealFeel®93°

RealFeel Shade™83°

Max UV Index10.0 (Very High)

WindNNE 2 mph

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