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Big heat is coming to the Northeast, so are more downpours Chevron right
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Herndon, VA

64°F
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Herndon, VA Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities

June 15 - July 29

Sun 6/15

69° /63°
70%
Humid with low clouds; areas of drizzle this morning followed by a brief shower or two this afternoon; outdoor plans can be impacted on Father's Day

RealFeel®70°

RealFeel Shade™68°

Max UV Index2 (Low)

WindE 7 mph

Mon 6/16

71° /65°
84%
Cloudy with a couple of showers

RealFeel®72°

RealFeel Shade™71°

Max UV Index3 (Moderate)

WindN 7 mph

Tue 6/17

82° /70°
77%
Warmer; a couple of showers and a heavy thunderstorm in the afternoon; storms can bring flooding downpours, hail, damaging wind gusts, and an isolated tornado

RealFeel®89°

RealFeel Shade™85°

Max UV Index4 (Moderate)

WindSE 7 mph

Wed 6/18

88° /71°
40%
Humid with clouds giving way to some sun; a thunderstorm in spots in the afternoon

RealFeel®97°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindW 7 mph

Thu 6/19

88° /68°
55%
Partly sunny and humid; a gusty thunderstorm in the afternoon; thunderstorms can bring hail and damaging winds

RealFeel®98°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindWSW 7 mph

Fri 6/20

85° /63°
1%
Mostly sunny and less humid

RealFeel®83°

RealFeel Shade™75°

Max UV Index11 (Extreme)

WindNW 7 mph

Sat 6/21

87° /67°
3%
Mostly sunny and humid

RealFeel®96°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindSSW 4 mph

Sun 6/22

91° /71°
64%
Cloudy and hot; a couple of afternoon thunderstorms

RealFeel®100°

RealFeel Shade™97°

Max UV Index6 (High)

WindW 5 mph

Mon 6/23

96° /70°
4%
Mostly sunny, hot and humid

RealFeel®106°

RealFeel Shade™102°

Max UV Index11 (Extreme)

WindW 4 mph

Tue 6/24

98° /74°
38%
Mostly cloudy and hot; widely separated thunderstorms in the afternoon

RealFeel®105°

RealFeel Shade™102°

Max UV Index11 (Extreme)

WindWSW 5 mph

Wed 6/25

92° /68°
59%
Variable cloudiness with a couple of thunderstorms; hot

RealFeel®92°

RealFeel Shade™90°

Max UV Index8 (Very High)

WindNW 10 mph

Thu 6/26

89° /68°
0%
Plenty of sunshine

RealFeel®94°

RealFeel Shade™88°

Max UV Index11 (Extreme)

WindNNW 6 mph

Fri 6/27

87° /69°
55%
Mostly cloudy with a bit of rain in the afternoon

RealFeel®88°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindSSW 7 mph

Sat 6/28

88° /67°
5%
Sunny

RealFeel®92°

RealFeel Shade™86°

Max UV Index11 (Extreme)

WindS 7 mph

Sun 6/29

87° /68°
10%
Mostly sunny and humid

RealFeel®97°

RealFeel Shade™91°

Max UV Index11 (Extreme)

WindWNW 4 mph

Mon 6/30

88° /69°
20%
Mostly sunny and humid

RealFeel®97°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindWNW 8 mph

Tue 7/1

89° /68°
25%
Mostly cloudy and humid

RealFeel®94°

RealFeel Shade™93°

Max UV Index3 (Moderate)

WindSE 5 mph

Wed 7/2

88° /69°
20%
Partly sunny and humid

RealFeel®97°

RealFeel Shade™91°

Max UV Index11 (Extreme)

WindWSW 7 mph

Thu 7/3

89° /69°
25%
Partly sunny and humid

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindNNW 6 mph

Fri 7/4

87° /70°
10%
Uncomfortably humid with variable cloudiness

RealFeel®98°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindS 1 mph

Sat 7/5

89° /69°
25%
Mostly cloudy and humid

RealFeel®96°

RealFeel Shade™94°

Max UV Index3 (Moderate)

WindSSW 6 mph

Sun 7/6

89° /70°
25%
Mostly cloudy and uncomfortably humid

RealFeel®99°

RealFeel Shade™99°

Max UV Index7 (High)

WindNW 4 mph

Mon 7/7

88° /70°
25%
Uncomfortably humid with sunshine and a few clouds

RealFeel®99°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindSSE 4 mph

Tue 7/8

88° /69°
25%
Mostly cloudy and uncomfortably humid

RealFeel®98°

RealFeel Shade™95°

Max UV Index3 (Moderate)

WindSSW 5 mph

Wed 7/9

89° /69°
25%
Uncomfortably humid with intervals of clouds and sunshine

RealFeel®97°

RealFeel Shade™95°

Max UV Index7 (High)

WindWNW 6 mph

Thu 7/10

84° /68°
63%
Considerable cloudiness; a couple of morning showers and a thunderstorm followed by a little rain in the afternoon

RealFeel®88°

RealFeel Shade™84°

Max UV Index4 (Moderate)

WindE 7 mph

Fri 7/11

83° /67°
25%
Cloudy most of the time

RealFeel®85°

RealFeel Shade™83°

Max UV Index4 (Moderate)

WindSE 6 mph

Sat 7/12

83° /70°
25%
Mostly cloudy

RealFeel®89°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindSSW 7 mph

Sun 7/13

89° /71°
25%
Turning cloudy and uncomfortably humid

RealFeel®96°

RealFeel Shade™96°

Max UV Index7 (High)

WindW 7 mph

Mon 7/14

89° /70°
5%
Plenty of sunshine

RealFeel®97°

RealFeel Shade™89°

Max UV Index11 (Extreme)

WindNNW 7 mph

Tue 7/15

88° /69°
25%
Increasing cloudiness

RealFeel®94°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindW 5 mph

Wed 7/16

89° /70°
57%
A morning thunderstorm; otherwise, very humid with increasing amounts of sun

RealFeel®101°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindNW 4 mph

Thu 7/17

89° /67°
10%
Sunshine and less humid

RealFeel®93°

RealFeel Shade™86°

Max UV Index11 (Extreme)

WindNW 8 mph

Fri 7/18

84° /64°
10%
Abundant sunshine

RealFeel®90°

RealFeel Shade™82°

Max UV Index11 (Extreme)

WindNNW 4 mph

Sat 7/19

83° /66°
20%
Sunshine and a few clouds

RealFeel®90°

RealFeel Shade™81°

Max UV Index11 (Extreme)

WindENE 4 mph

Sun 7/20

86° /69°
65%
A thick cloud cover with a couple of showers and a thunderstorm in the afternoon

RealFeel®90°

RealFeel Shade™90°

Max UV Index3 (Moderate)

WindSSE 6 mph

Mon 7/21

83° /67°
20%
Partly sunny

RealFeel®87°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindNNW 8 mph

Tue 7/22

83° /65°
25%
Sunshine

RealFeel®91°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindESE 4 mph

Wed 7/23

84° /69°
56%
Mostly sunny and humid; a passing shower in the afternoon

RealFeel®94°

RealFeel Shade™89°

Max UV Index10 (Very High)

WindSW 1 mph

Thu 7/24

84° /65°
5%
Less humid with plenty of sunshine

RealFeel®88°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindNW 6 mph

Fri 7/25

83° /67°
20%
Sunshine and a few clouds

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindWNW 2 mph

Sat 7/26

84° /69°
25%
Mostly cloudy

RealFeel®90°

RealFeel Shade™88°

Max UV Index5 (Moderate)

WindENE 4 mph

Sun 7/27

85° /69°
25%
Mostly cloudy and humid

RealFeel®93°

RealFeel Shade™93°

Max UV Index4 (Moderate)

WindESE 4 mph

Mon 7/28

85° /64°
57%
Intervals of clouds and sun with a couple of showers and a thunderstorm

RealFeel®92°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindNNW 5 mph

Tue 7/29

84° /64°
0%
Mostly sunny and less humid

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindNE 5 mph

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