Sylvan Lake, IL

More clouds than sun; humid with widely separated thunderstorms

RealFeel®98°

RealFeel Shade™93°

Max UV Index9 (Very High)

WindWSW 12 mph

Fri 6/27

85° /68°

80%

Cloudy most of the time with a thunderstorm; humid

RealFeel®95°

RealFeel Shade™89°

Max UV Index10 (Very High)

WindWSW 8 mph

Sat 6/28

92° /68°

Partly sunny with widely separated thunderstorms; hot and humid; caution advised if doing strenuous activities outside

RealFeel®101°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindNNE 4 mph

Sun 6/29

87° /69°

Mostly cloudy, very warm and humid

RealFeel®100°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindS 4 mph

Mon 6/30

83° /65°

Cloudy and humid with widely separated thunderstorms

RealFeel®89°

RealFeel Shade™85°

Max UV Index2 (Low)

WindWNW 5 mph

Tue 7/1

82° /64°

Less humid with plenty of sunshine; air quality will be very unhealthy

RealFeel®86°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindNW 7 mph

Wed 7/2

84° /63°

Clouds and sun; air quality will be very unhealthy

RealFeel®85°

RealFeel Shade™81°

Max UV Index7 (High)

WindWNW 7 mph

Thu 7/3

84° /65°

64%

A blend of sun and clouds with a couple of thunderstorms, especially early in the day

RealFeel®87°

RealFeel Shade™84°

Max UV Index4 (Moderate)

WindW 7 mph

Fri 7/4

80° /65°

30%

Clouds and sun with a thunderstorm possible

RealFeel®83°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindSSW 10 mph

Sat 7/5

85° /64°

83%

Considerable cloudiness; rain and a thunderstorm in the morning followed by a thunderstorm in parts of the area in the afternoon

RealFeel®87°

RealFeel Shade™82°

Max UV Index4 (Moderate)

WindSW 8 mph

Sun 7/6

84° /67°

Low clouds in the morning followed by clouds yielding to sun

RealFeel®88°

RealFeel Shade™84°

Max UV Index5 (Moderate)

WindNE 8 mph

Mon 7/7

82° /62°

Partly sunny and humid

RealFeel®91°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindENE 2 mph

Tue 7/8

78° /61°

Increasing cloudiness

RealFeel®84°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindSE 4 mph

Wed 7/9

Humid with times of clouds and sun; a couple of afternoon showers

RealFeel®88°

RealFeel Shade™86°

Max UV Index5 (Moderate)

WindSSE 6 mph

Thu 7/10

86° /66°

Very warm and humid with brilliant sunshine

RealFeel®93°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindWSW 6 mph

Fri 7/11

85° /68°

Humid with clouds and sunshine

RealFeel®91°

RealFeel Shade™87°

Max UV Index7 (High)

WindSSW 10 mph

Sat 7/12

84° /66°

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

RealFeel®86°

RealFeel Shade™86°

Max UV Index3 (Moderate)

WindSW 9 mph

Sun 7/13

81° /66°

Sunshine and humid

RealFeel®89°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindNNW 6 mph

Mon 7/14

78° /64°

Clouds rolling in

RealFeel®81°

RealFeel Shade™78°

Max UV Index5 (Moderate)

WindESE 5 mph

Tue 7/15

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

RealFeel®86°

RealFeel Shade™85°

Max UV Index2 (Low)

WindWNW 6 mph

Wed 7/16

78° /66°

A thick cloud cover

RealFeel®79°

RealFeel Shade™78°

Max UV Index3 (Moderate)

WindENE 9 mph

Thu 7/17

78° /65°

Humid with considerable cloudiness

RealFeel®80°

RealFeel Shade™79°

Max UV Index3 (Moderate)

WindE 7 mph

Fri 7/18

62%

Cloudy and humid with a couple of showers and a thunderstorm

RealFeel®86°

RealFeel Shade™86°

Max UV Index2 (Low)

WindSE 5 mph

Sat 7/19

Remaining cloudy and humid

RealFeel®86°

RealFeel Shade™86°

Max UV Index3 (Moderate)

WindW 4 mph

Sun 7/20

83° /67°

Partly sunny and uncomfortably humid

RealFeel®94°

RealFeel Shade™91°

Max UV Index10 (Very High)

WindSW 6 mph

Mon 7/21

85° /67°

64%

Uncomfortably humid with variable cloudiness; a couple of afternoon showers and a thunderstorm

RealFeel®94°

RealFeel Shade™94°

Max UV Index7 (High)

WindWSW 4 mph

Tue 7/22

Mostly sunny and less humid

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindNW 7 mph

Wed 7/23

Sunshine and a few clouds

RealFeel®88°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindSW 4 mph

Thu 7/24

83° /63°

Periods of clouds and sunshine with a thundershower in spots; humid

RealFeel®91°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindNE 5 mph

Fri 7/25

78° /62°

Mostly sunny and less humid

RealFeel®81°

RealFeel Shade™75°

Max UV Index9 (Very High)

WindNNE 9 mph

Sat 7/26

77° /60°

Intervals of clouds and sunshine

RealFeel®78°

RealFeel Shade™75°

Max UV Index5 (Moderate)

WindENE 5 mph

Sun 7/27

78° /63°

Abundant sunshine

RealFeel®84°

RealFeel Shade™76°

Max UV Index9 (Very High)

WindNE 4 mph

Mon 7/28

80° /64°

Sunny to partly cloudy

RealFeel®88°

RealFeel Shade™81°

Max UV Index9 (Very High)

WindNE 2 mph

Tue 7/29

Mostly sunny

RealFeel®89°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindWNW 5 mph

Wed 7/30

76%

Cloudy with rain in the afternoon

RealFeel®84°

RealFeel Shade™83°

Max UV Index4 (Moderate)

WindENE 5 mph

Thu 7/31

82° /67°

Clouds giving way to some sun and humid

RealFeel®85°

RealFeel Shade™81°

Max UV Index8 (Very High)

WindSSW 10 mph

Fri 8/1

86° /63°

Partly sunny, very warm and humid

RealFeel®90°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindNNW 9 mph

Sat 8/2

80° /60°

Less humid with increasing clouds

RealFeel®80°

RealFeel Shade™78°

Max UV Index6 (High)

WindNNE 7 mph

Sun 8/3

77° /59°

Some sun, then increasing clouds

RealFeel®77°

RealFeel Shade™76°

Max UV Index6 (High)

WindENE 6 mph

Mon 8/4

81° /66°