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Dangerous heat wave to impact 170 million people in Midwest and Northeast. Details here Chevron right

Cortland, IL

69°F
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Cortland

Illinois

69°
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Cortland, IL Weather
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Winter Center

Today Hourly

Daily

Radar MinuteCast Monthly Air Quality Health & Activities
Heat Advisory

June 20 - August 3

Fri 6/20

84° /71°
80%
Times of clouds and sun, breezy and humid with a couple of brief showers, mainly midday

RealFeel®83°

RealFeel Shade™81°

Max UV Index7 (High)

WindSSW 16 mph

Sat 6/21

93° /72°
3%
Mostly sunny; windy, warmer and humid; start of an extended heat wave; stay hydrated
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel®96°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSSW 21 mph

Sun 6/22

94° /72°
5%
Windy, hot and humid with sunshine mixing with some clouds; stay hydrated when outside in the heat
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel®96°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSSW 17 mph

Mon 6/23

94° /72°
13%
Breezy and very hot with the temperature approaching the record of 95 last reached in 1995 with plenty of sunshine; stay hydrated when outside in the heat
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel®95°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 15 mph

Tue 6/24

90° /68°
25%
Hot with intervals of clouds and sun

RealFeel®96°

RealFeel Shade™90°

Max UV Index6 (High)

WindSW 8 mph

Wed 6/25

89° /69°
88%
Partial sunshine with a couple of showers and a thunderstorm; warm

RealFeel®97°

RealFeel Shade™89°

Max UV Index11 (Extreme)

WindSW 8 mph

Thu 6/26

87° /67°
40%
Periods of clouds and sunshine with a thunderstorm in spots; warm

RealFeel®92°

RealFeel Shade™86°

Max UV Index11 (Extreme)

WindSW 12 mph

Fri 6/27

89° /66°
61%
Remaining warm with intervals of clouds and sunshine; a couple of thunderstorms in the afternoon

RealFeel®92°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindSW 12 mph

Sat 6/28

85° /68°
61%
Cloudy and humid with a couple of thunderstorms, especially early in the day

RealFeel®87°

RealFeel Shade™85°

Max UV Index4 (Moderate)

WindSSW 9 mph

Sun 6/29

83° /64°
0%
Humid with times of clouds and sun

RealFeel®89°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindW 5 mph

Mon 6/30

82° /62°
56%
Cloudy with a touch of rain

RealFeel®84°

RealFeel Shade™80°

Max UV Index3 (Moderate)

WindSW 6 mph

Tue 7/1

82° /62°
1%
Mostly sunny

RealFeel®89°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindWSW 4 mph

Wed 7/2

81° /63°
55%
Clouds breaking for some sun; a little rain in the morning followed by a shower in spots in the afternoon

RealFeel®87°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindENE 5 mph

Thu 7/3

84° /62°
40%
Mostly cloudy and humid; a thunderstorm in spots in the afternoon

RealFeel®87°

RealFeel Shade™83°

Max UV Index4 (Moderate)

WindNE 4 mph

Fri 7/4

80° /66°
20%
Mostly sunny and less humid

RealFeel®88°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindE 5 mph

Sat 7/5

82° /67°
25%
Sunny and humid

RealFeel®90°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindSSW 5 mph

Sun 7/6

84° /67°
65%
Mainly cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®91°

RealFeel Shade™90°

Max UV Index5 (Moderate)

WindSSE 4 mph

Mon 7/7

83° /66°
55%
Considerable cloudiness with a thunderstorm; humid

RealFeel®90°

RealFeel Shade™90°

Max UV Index2 (Low)

WindW 5 mph

Tue 7/8

82° /66°
40%
A thunderstorm in spots in the morning; otherwise, partly sunny and humid

RealFeel®86°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindWNW 12 mph

Wed 7/9

78° /62°
20%
Sunny to partly cloudy and less humid

RealFeel®82°

RealFeel Shade™75°

Max UV Index10 (Very High)

WindWNW 9 mph

Thu 7/10

78° /61°
10%
Abundant sunshine

RealFeel®83°

RealFeel Shade™76°

Max UV Index10 (Very High)

WindW 7 mph

Fri 7/11

79° /63°
25%
Partly sunny

RealFeel®85°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindS 4 mph

Sat 7/12

79° /64°
62%
Mostly cloudy and humid with a couple of showers and a thunderstorm

RealFeel®83°

RealFeel Shade™81°

Max UV Index2 (Low)

WindSSW 9 mph

Sun 7/13

80° /60°
10%
Sunny and less humid

RealFeel®87°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindW 6 mph

Mon 7/14

78° /60°
25%
Increasing clouds

RealFeel®83°

RealFeel Shade™76°

Max UV Index10 (Very High)

WindESE 5 mph

Tue 7/15

78° /65°
70%
Cloudy and humid; thunderstorms in the afternoon

RealFeel®82°

RealFeel Shade™82°

Max UV Index2 (Low)

WindS 12 mph

Wed 7/16

80° /66°
25%
Mostly cloudy and humid

RealFeel®85°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindW 6 mph

Thu 7/17

81° /66°
25%
Sunny and humid

RealFeel®90°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindSSW 4 mph

Fri 7/18

84° /68°
65%
Humid with variable cloudiness; a couple of afternoon thunderstorms

RealFeel®89°

RealFeel Shade™89°

Max UV Index5 (Moderate)

WindS 9 mph

Sat 7/19

83° /67°
70%
Cloudy and very humid with showers and thunderstorms, mainly later

RealFeel®91°

RealFeel Shade™91°

Max UV Index2 (Low)

WindSSW 9 mph

Sun 7/20

83° /66°
10%
Mostly sunny and humid

RealFeel®89°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindNNW 6 mph

Mon 7/21

79° /63°
10%
Mostly sunny and less humid

RealFeel®86°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindE 5 mph

Tue 7/22

80° /67°
58%
A couple of showers in the morning; otherwise, cloudy and humid

RealFeel®87°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindSSE 7 mph

Wed 7/23

84° /67°
25%
Uncomfortably humid with clouds and sun

RealFeel®93°

RealFeel Shade™91°

Max UV Index5 (Moderate)

WindSSW 8 mph

Thu 7/24

85° /65°
59%
A couple of morning showers; otherwise, mostly cloudy and humid

RealFeel®90°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindN 7 mph

Fri 7/25

79° /62°
25%
Mostly cloudy and less humid

RealFeel®83°

RealFeel Shade™80°

Max UV Index5 (Moderate)

WindNNE 5 mph

Sat 7/26

79° /65°
25%
Mostly cloudy and humid

RealFeel®83°

RealFeel Shade™83°

Max UV Index7 (High)

WindESE 4 mph

Sun 7/27

83° /67°
25%
Humid with intervals of clouds and sunshine

RealFeel®90°

RealFeel Shade™88°

Max UV Index7 (High)

WindS 2 mph

Mon 7/28

85° /67°
25%
Humid with times of clouds and sun

RealFeel®92°

RealFeel Shade™89°

Max UV Index5 (Moderate)

WindS 7 mph

Tue 7/29

85° /68°
20%
Mostly sunny and uncomfortably humid

RealFeel®95°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindSSW 6 mph

Wed 7/30

86° /67°
25%
Mostly sunny and uncomfortably humid

RealFeel®96°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindSSW 7 mph

Thu 7/31

85° /68°
10%
Mostly sunny and humid

RealFeel®93°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindSW 8 mph

Fri 8/1

78° /59°
0%
Mostly sunny

RealFeel®82°

RealFeel Shade™76°

Max UV Index9 (Very High)

WindNE 6 mph

Sat 8/2

78° /65°
0%
Partly sunny

RealFeel®83°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindSSE 6 mph

Sun 8/3

80° /61°
57%
Occasional morning rain; otherwise, mostly cloudy

RealFeel®82°

RealFeel Shade™80°

Max UV Index3 (Moderate)

WindS 8 mph

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World North America United States Illinois Cortland

Weather Near Cortland:

  • Chicago, IL
  • Joliet, IL
  • Naperville, IL
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