Mount Vernon, PA

Humid with some sun, then turning cloudy; a couple of afternoon showers and a thunderstorm

RealFeel®99°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindW 8 mph

Mon 7/21

81° /59°

Less humid; mostly sunny in the morning followed by sun and areas of high clouds

RealFeel®86°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindN 6 mph

Tue 7/22

82° /64°

Plenty of sun

RealFeel®89°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindE 6 mph

Wed 7/23

88° /71°

Mostly sunny and very warm

RealFeel®99°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindS 2 mph

Thu 7/24

92° /73°

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

RealFeel®100°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindSSW 6 mph

Fri 7/25

88° /73°

43%

Partly sunny, very warm and humid; a thunderstorm in a couple of spots in the afternoon

RealFeel®95°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindWSW 10 mph

Sat 7/26

87° /71°

58%

Mostly cloudy and very humid with a thunderstorm or two

RealFeel®95°

RealFeel Shade™91°

Max UV Index4 (Moderate)

WindSW 8 mph

Sun 7/27

85° /72°

74%

Partly sunny and humid; a couple of thunderstorms in the afternoon

RealFeel®93°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindSSW 7 mph

Mon 7/28

84° /69°

59%

Humid; occasional rain and a thunderstorm in the morning with plenty of clouds, then times of clouds and sun in the afternoon with a thunderstorm in spots

RealFeel®91°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindNW 7 mph

Tue 7/29

84° /67°

70%

Turning cloudy and humid; a couple of afternoon thunderstorms

RealFeel®95°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindWSW 2 mph

Wed 7/30

83° /65°

69%

Humid with periods of clouds and sunshine; a couple of afternoon thunderstorms

RealFeel®90°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindSW 5 mph

Thu 7/31

84° /66°

66%

Variably cloudy with a couple of thunderstorms, mainly early in the day

RealFeel®87°

RealFeel Shade™83°

Max UV Index5 (Moderate)

WindNW 6 mph

Fri 8/1

86° /69°

Plenty of sun

RealFeel®88°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindNW 7 mph

Sat 8/2

84° /62°

Clouds giving way to a brightening sky

RealFeel®87°

RealFeel Shade™81°

Max UV Index5 (Moderate)

WindESE 6 mph

Sun 8/3

81° /63°

20%

Mostly sunny

RealFeel®87°

RealFeel Shade™79°

Max UV Index9 (Very High)

WindESE 5 mph

Mon 8/4

85° /68°

Partly sunny with a passing shower in the afternoon

RealFeel®87°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindS 8 mph

Tue 8/5

83° /68°

63%

Mostly cloudy and humid with a couple of showers and a thunderstorm

RealFeel®87°

RealFeel Shade™86°

Max UV Index2 (Low)

WindSSW 7 mph

Wed 8/6

83° /67°

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

RealFeel®84°

RealFeel Shade™82°

Max UV Index2 (Low)

WindW 8 mph

Thu 8/7

79° /63°

20%

Mostly sunny

RealFeel®88°

RealFeel Shade™78°

Max UV Index9 (Very High)

WindS 4 mph

Fri 8/8

79° /67°

70%

Cloudy and humid; a little rain in the morning followed by showers and thunderstorms in the afternoon

RealFeel®82°

RealFeel Shade™82°

Max UV Index2 (Low)

WindSE 5 mph

Sat 8/9

77° /67°

70%

Cloudy and humid with showers and thunderstorms becoming more widespread

RealFeel®82°

RealFeel Shade™82°

Max UV Index2 (Low)

WindE 2 mph

Sun 8/10

78° /66°

Cloudy and humid with a little rain

RealFeel®78°

RealFeel Shade™78°

Max UV Index2 (Low)

WindNE 6 mph

Mon 8/11

77° /67°

57%

A couple of showers in the morning; still cloudy and humid

RealFeel®80°

RealFeel Shade™80°

Max UV Index2 (Low)

WindS 5 mph

Tue 8/12

78° /67°

61%

Rather cloudy and humid; a couple of afternoon showers and a thunderstorm

RealFeel®89°

RealFeel Shade™81°

Max UV Index9 (Very High)

WindSSE 6 mph

Wed 8/13

79° /66°

39%

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

RealFeel®89°

RealFeel Shade™83°

Max UV Index9 (Very High)

WindSE 6 mph

Thu 8/14

79° /67°

58%

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

RealFeel®87°

RealFeel Shade™83°

Max UV Index9 (Very High)

WindSSE 8 mph

Fri 8/15

82° /66°

40%

Cloudy and humid; a thunderstorm in spots in the afternoon

RealFeel®87°

RealFeel Shade™87°

Max UV Index2 (Low)

WindS 6 mph

Sat 8/16

81° /67°

62%

Mostly cloudy and humid; a couple of afternoon showers

RealFeel®87°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindS 4 mph

Sun 8/17

80° /66°

Mostly cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®83°

RealFeel Shade™83°

Max UV Index3 (Moderate)

WindSW 6 mph

Mon 8/18

78° /66°

Humid with plenty of clouds

RealFeel®80°

RealFeel Shade™78°

Max UV Index3 (Moderate)

WindNNE 4 mph

Tue 8/19

77° /64°

Mostly cloudy

RealFeel®77°

RealFeel Shade™77°

Max UV Index2 (Low)

WindENE 6 mph

Wed 8/20

77° /64°

Cloudy; a little morning rain followed by areas of drizzle in the afternoon

RealFeel®75°

RealFeel Shade™75°

Max UV Index2 (Low)

WindE 8 mph

Thu 8/21

76° /62°

59%

A thick cloud cover; a morning shower in spots followed by a little rain in the afternoon

RealFeel®74°

RealFeel Shade™74°

Max UV Index2 (Low)

WindENE 7 mph

Fri 8/22

76° /59°

10%

Sunshine

RealFeel®83°

RealFeel Shade™73°

Max UV Index8 (Very High)

WindNE 5 mph

Sat 8/23

77° /62°

Times of clouds and sun

RealFeel®79°

RealFeel Shade™79°

Max UV Index5 (Moderate)

WindNE 2 mph

Sun 8/24

77° /63°

10%

Sunny to partly cloudy

RealFeel®81°

RealFeel Shade™75°

Max UV Index8 (Very High)

WindS 6 mph

Mon 8/25

78° /65°

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

RealFeel®80°

RealFeel Shade™80°

Max UV Index2 (Low)

WindSW 10 mph

Tue 8/26

76° /63°

Cloudy; a little morning rain followed by a shower in spots in the afternoon

RealFeel®75°

RealFeel Shade™75°

Max UV Index2 (Low)

WindNNW 5 mph

Wed 8/27

75° /60°

20%

Sunshine and a few clouds

RealFeel®83°

RealFeel Shade™73°

Max UV Index7 (High)

WindSE 5 mph

Thu 8/28

77° /65°

67%

Mostly cloudy and humid with rain tapering off

RealFeel®78°

RealFeel Shade™77°

Max UV Index2 (Low)

WindWSW 8 mph

Fri 8/29

78° /63°

Periods of clouds and sunshine

RealFeel®80°

RealFeel Shade™79°

Max UV Index2 (Low)

WindNNE 2 mph

Sat 8/30

76° /61°