Extreme Heat Watch

June 20 - August 3

Fri 6/20

86° /67°

Breezy and less humid with plenty of sunshine

RealFeel®90°

RealFeel Shade™82°

Max UV Index11 (Extreme)

WindW 15 mph

Sat 6/21

91° /73°

Partly sunny and hot; caution advised if doing strenuous activities outside

RealFeel®96°

RealFeel Shade™89°

Max UV Index11 (Extreme)

WindWSW 8 mph

Sun 6/22

96° /78°

Sun through high clouds, hot and humid; start of an extended heat wave; stay cool and hydrated

RealFeel®101°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindWSW 9 mph

Mon 6/23

99° /80°

Record-breaking temperatures and humid with sunshine; one of the hottest days of the year so far; stay cool and well hydrated

alerts

Extreme Heat Watch

8:00 AM Monday - 8:00 PM Wednesday

RealFeel®108°

RealFeel Shade™101°

Max UV Index11 (Extreme)

WindNW 5 mph

Tue 6/24

99° /80°

Record-tying temperatures and humid with hazy sun; stay hydrated with temperatures remaining dangerously high

alerts

Extreme Heat Watch

8:00 AM Monday - 8:00 PM Wednesday

RealFeel®105°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindNW 8 mph

Wed 6/25

96° /77°

Mostly sunny and hot with the temperature approaching the record of 98 set in 1952; heat wave continues; no relief for days

alerts

Extreme Heat Watch

8:00 AM Monday - 8:00 PM Wednesday

RealFeel®103°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindNW 5 mph

Thu 6/26

94° /74°

67%

Hot with sun yielding to clouds; a couple of thunderstorms in the afternoon

RealFeel®103°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindNNW 5 mph

Fri 6/27

92° /75°

25%

Hot and less humid with considerable cloudiness

RealFeel®91°

RealFeel Shade™90°

Max UV Index3 (Moderate)

WindE 8 mph

Sat 6/28

93° /76°

68%

Cloudy and hot with thunderstorms

RealFeel®100°

RealFeel Shade™98°

Max UV Index3 (Moderate)

WindSSW 6 mph

Sun 6/29

96° /77°

65%

Times of clouds and sun, hot and humid with a couple of thunderstorms

RealFeel®104°

RealFeel Shade™101°

Max UV Index7 (High)

WindWSW 5 mph

Mon 6/30

87° /72°

75%

Low clouds with afternoon rain

RealFeel®89°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindSE 4 mph

Tue 7/1

89° /73°

80%

Cloudy and humid; a couple of morning thunderstorms followed by rain in the afternoon

RealFeel®94°

RealFeel Shade™91°

Max UV Index7 (High)

WindSSW 7 mph

Wed 7/2

87° /70°

63%

Humid with periods of rain

RealFeel®91°

RealFeel Shade™90°

Max UV Index4 (Moderate)

WindSW 6 mph

Thu 7/3

86° /71°

57%

Remaining cloudy with a couple of thunderstorms

RealFeel®85°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindWSW 5 mph

Fri 7/4

86° /74°

10%

Humid with clouds and breaks of sun

RealFeel®96°

RealFeel Shade™93°

Max UV Index9 (Very High)

WindNNW 4 mph

Sat 7/5

88° /73°

25%

Humid with intervals of clouds and sunshine

RealFeel®95°

RealFeel Shade™92°

Max UV Index4 (Moderate)

WindSE 2 mph

Sun 7/6

88° /74°

25%

Turning cloudy and humid

RealFeel®95°

RealFeel Shade™95°

Max UV Index5 (Moderate)

WindSE 2 mph

Mon 7/7

89° /74°

25%

Partly sunny and humid

RealFeel®100°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindWSW 2 mph

Tue 7/8

91° /75°

39%

Hot and humid with times of clouds and sun; a thunderstorm in spots in the afternoon

RealFeel®99°

RealFeel Shade™96°

Max UV Index6 (High)

WindS 7 mph

Wed 7/9

90° /74°

39%

Mostly cloudy and humid; a morning shower in spots followed by a thunderstorm in spots in the afternoon

RealFeel®96°

RealFeel Shade™96°

Max UV Index5 (Moderate)

WindSW 6 mph

Thu 7/10

86° /74°

25%

Humid with times of clouds and sun

RealFeel®93°

RealFeel Shade™89°

Max UV Index5 (Moderate)

WindSSW 6 mph

Fri 7/11

87° /73°

25%

Mostly cloudy and humid

RealFeel®93°

RealFeel Shade™91°

Max UV Index3 (Moderate)

WindSW 6 mph

Sat 7/12

87° /75°

63%

A couple of showers in the morning; otherwise, mostly cloudy and very humid

RealFeel®94°

RealFeel Shade™93°

Max UV Index4 (Moderate)

WindSSW 8 mph

Sun 7/13

88° /75°

20%

Mostly sunny and uncomfortably humid

RealFeel®96°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindSSW 12 mph

Mon 7/14

91° /74°

65%

A couple of morning showers and a thunderstorm; otherwise, hot and humid with considerable clouds

RealFeel®98°

RealFeel Shade™98°

Max UV Index3 (Moderate)

WindSW 5 mph

Tue 7/15

86° /73°

55%

Humid with intervals of clouds and sunshine; a passing morning shower followed by a thunderstorm in spots in the afternoon

RealFeel®92°

RealFeel Shade™90°

Max UV Index5 (Moderate)

WindN 2 mph

Wed 7/16

86° /74°

39%

Very humid with considerable cloudiness; a shower in spots in the morning followed by a thunderstorm in spots in the afternoon

RealFeel®94°

RealFeel Shade™94°

Max UV Index3 (Moderate)

WindS 7 mph

Thu 7/17

88° /75°

59%

A brief shower in the morning; otherwise, partly sunny and very humid

RealFeel®99°

RealFeel Shade™95°

Max UV Index10 (Very High)

WindSW 6 mph

Fri 7/18

89° /75°

61%

Cloudy and humid; a couple of afternoon showers and a thunderstorm

RealFeel®96°

RealFeel Shade™96°

Max UV Index3 (Moderate)

WindWSW 6 mph

Sat 7/19

87° /74°

20%

Partly sunny and uncomfortably humid

RealFeel®97°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindSSW 7 mph

Sun 7/20

91° /76°

10%

Sunny, hot and humid

RealFeel®99°

RealFeel Shade™95°

Max UV Index10 (Very High)

WindSSW 9 mph

Mon 7/21

91° /75°

70%

Rain at times in the morning; otherwise, cloudy, hot and humid

RealFeel®100°

RealFeel Shade™100°

Max UV Index3 (Moderate)

WindWSW 4 mph

Tue 7/22

87° /75°

40%

A thunderstorm in spots in the morning; otherwise, overcast and humid

RealFeel®95°

RealFeel Shade™95°

Max UV Index3 (Moderate)

WindS 4 mph

Wed 7/23

86° /74°

64%

A couple of showers in the morning; otherwise, remaining cloudy and very humid

RealFeel®94°

RealFeel Shade™94°

Max UV Index3 (Moderate)

WindSSW 5 mph

Thu 7/24

86° /75°

57%

A passing morning shower; otherwise, very humid with periods of clouds and sunshine

RealFeel®96°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindSSW 9 mph

Fri 7/25

90° /75°

70%

Rain at times in the morning; otherwise, mostly cloudy, hot and humid

RealFeel®100°

RealFeel Shade™98°

Max UV Index5 (Moderate)

WindSW 5 mph

Sat 7/26

86° /74°

57%

A thick cloud cover and very humid with a thunderstorm or two

RealFeel®93°

RealFeel Shade™93°

Max UV Index2 (Low)

WindSSW 5 mph

Sun 7/27

86° /74°

65%

A couple of morning showers and a thunderstorm; otherwise, humid with considerable cloudiness

RealFeel®93°

RealFeel Shade™93°

Max UV Index2 (Low)

WindSSW 5 mph

Mon 7/28

85° /73°

55%

A couple of morning showers; otherwise, mostly cloudy and humid

RealFeel®93°

RealFeel Shade™92°

Max UV Index3 (Moderate)

WindW 4 mph

Tue 7/29

88° /75°

25%

Uncomfortably humid with times of clouds and sun

RealFeel®98°

RealFeel Shade™97°

Max UV Index7 (High)

WindWSW 6 mph

Wed 7/30

91° /75°

25%

Turning cloudy, hot and very humid

RealFeel®100°

RealFeel Shade™98°

Max UV Index9 (Very High)

WindW 6 mph

Thu 7/31

91° /74°

55%

A passing shower in the morning; otherwise, partly sunny, hot and very humid

RealFeel®102°

RealFeel Shade™99°

Max UV Index10 (Very High)

WindWSW 6 mph

Fri 8/1

85° /69°

59%

Periods of rain

RealFeel®86°

RealFeel Shade™83°

Max UV Index6 (High)

WindNE 8 mph

Sat 8/2

86° /68°

Sunshine

RealFeel®92°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindNNW 5 mph

Sun 8/3

87° /68°

Sunshine

RealFeel®91°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindESE 5 mph

Yorktown, PA

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