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Storms to hammer Central, Eastern US with flood, wind threat Chevron right
Dangerous heat and humidity to grip the Southeast Chevron right

South Jacksonville, IL

76°F
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South Jacksonville

Illinois

76°
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South Jacksonville, IL Weather
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Winter Center

Today Hourly

Daily

Radar MinuteCast Monthly Air Quality Health & Activities
Heat Advisory

July 27 - September 9

Sun 7/27

86° /74°
65%
A couple of morning showers and a thunderstorm; otherwise, partly sunny and very humid
alerts

Heat Advisory

10:00 AM Wednesday - 7:00 PM Sunday

RealFeel®103°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindSW 6 mph

Mon 7/28

93° /74°
3%
Mostly sunny, hot and very humid; caution advised if doing strenuous activities outside

RealFeel®110°

RealFeel Shade™101°

Max UV Index10 (Very High)

WindWSW 6 mph

Tue 7/29

93° /70°
25%
Mostly sunny, hot and very humid; caution advised if doing strenuous activities outside

RealFeel®111°

RealFeel Shade™105°

Max UV Index10 (Very High)

WindSW 5 mph

Wed 7/30

85° /66°
42%
Variable cloudiness with a thunderstorm in one or two spots; very humid

RealFeel®100°

RealFeel Shade™93°

Max UV Index5 (Moderate)

WindNW 7 mph

Thu 7/31

77° /56°
40%
Low clouds and humid with a thunderstorm in spots

RealFeel®80°

RealFeel Shade™78°

Max UV Index3 (Moderate)

WindNE 9 mph

Fri 8/1

76° /58°
15%
Mostly cloudy; comfortable, less humid

RealFeel®80°

RealFeel Shade™73°

Max UV Index8 (Very High)

WindENE 7 mph

Sat 8/2

77° /61°
14%
Sun and areas of high clouds

RealFeel®82°

RealFeel Shade™74°

Max UV Index10 (Very High)

WindE 7 mph

Sun 8/3

81° /65°
1%
Sunshine and a few clouds

RealFeel®90°

RealFeel Shade™80°

Max UV Index9 (Very High)

WindENE 5 mph

Mon 8/4

85° /68°
1%
Mostly sunny

RealFeel®94°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindNNE 2 mph

Tue 8/5

86° /68°
1%
Mostly sunny and humid

RealFeel®103°

RealFeel Shade™97°

Max UV Index9 (Very High)

WindSE 2 mph

Wed 8/6

86° /65°
72%
Mostly cloudy and humid; a morning thunderstorm in parts of the area followed by periods of rain in the afternoon

RealFeel®101°

RealFeel Shade™101°

Max UV Index4 (Moderate)

WindSSW 6 mph

Thu 8/7

84° /66°
7%
Cloudy and humid

RealFeel®94°

RealFeel Shade™93°

Max UV Index2 (Low)

WindE 2 mph

Fri 8/8

86° /67°
2%
Partly sunny and humid

RealFeel®103°

RealFeel Shade™97°

Max UV Index9 (Very High)

WindN 5 mph

Sat 8/9

86° /65°
58%
A couple of showers in the morning; otherwise, cloudy and humid

RealFeel®99°

RealFeel Shade™99°

Max UV Index2 (Low)

WindESE 5 mph

Sun 8/10

84° /68°
25%
Humid with sun followed by increasing clouds

RealFeel®89°

RealFeel Shade™88°

Max UV Index9 (Very High)

WindSSW 13 mph

Mon 8/11

84° /62°
70%
Cloudy with showers and thunderstorms, mainly later

RealFeel®85°

RealFeel Shade™85°

Max UV Index2 (Low)

WindN 8 mph

Tue 8/12

80° /61°
20%
Mostly sunny and less humid

RealFeel®86°

RealFeel Shade™80°

Max UV Index9 (Very High)

WindN 5 mph

Wed 8/13

81° /64°
25%
Clouds and occasional sunshine

RealFeel®84°

RealFeel Shade™84°

Max UV Index4 (Moderate)

WindSSE 6 mph

Thu 8/14

83° /68°
20%
Turning cloudy and uncomfortably humid

RealFeel®94°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindS 10 mph

Fri 8/15

86° /68°
65%
Humid with variable cloudiness; a couple of showers and a thunderstorm in the afternoon

RealFeel®90°

RealFeel Shade™90°

Max UV Index4 (Moderate)

WindN 6 mph

Sat 8/16

82° /67°
65%
Increasing cloudiness and humid; a couple of afternoon showers and a thunderstorm

RealFeel®91°

RealFeel Shade™91°

Max UV Index6 (High)

WindESE 4 mph

Sun 8/17

84° /68°
25%
Uncomfortably humid with clouds giving way to some sun

RealFeel®98°

RealFeel Shade™97°

Max UV Index6 (High)

WindSSE 6 mph

Mon 8/18

89° /69°
5%
Uncomfortably humid with plenty of sunshine

RealFeel®102°

RealFeel Shade™100°

Max UV Index8 (Very High)

WindSSW 8 mph

Tue 8/19

89° /68°
20%
Very humid with plenty of sunshine

RealFeel®101°

RealFeel Shade™99°

Max UV Index8 (Very High)

WindSSW 7 mph

Wed 8/20

88° /68°
39%
Mostly sunny and uncomfortably humid; a thunderstorm in spots in the afternoon

RealFeel®101°

RealFeel Shade™99°

Max UV Index8 (Very High)

WindWSW 6 mph

Thu 8/21

88° /67°
20%
Clouds to start, then sunshine returns and very humid

RealFeel®101°

RealFeel Shade™97°

Max UV Index8 (Very High)

WindSSW 6 mph

Fri 8/22

87° /66°
10%
Less humid with abundant sunshine

RealFeel®91°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindN 8 mph

Sat 8/23

81° /62°
10%
Brilliant sunshine with low humidity

RealFeel®89°

RealFeel Shade™80°

Max UV Index8 (Very High)

WindESE 2 mph

Sun 8/24

82° /66°
56%
A little rain in the morning; otherwise, humid with considerable cloudiness

RealFeel®84°

RealFeel Shade™84°

Max UV Index2 (Low)

WindSSW 5 mph

Mon 8/25

86° /65°
25%
Mostly cloudy and humid

RealFeel®87°

RealFeel Shade™85°

Max UV Index4 (Moderate)

WindENE 9 mph

Tue 8/26

81° /60°
63%
Rain

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindE 12 mph

Wed 8/27

78° /61°
20%
Times of clouds and sun

RealFeel®79°

RealFeel Shade™76°

Max UV Index5 (Moderate)

WindNE 8 mph

Thu 8/28

79° /57°
20%
Sunny to partly cloudy

RealFeel®86°

RealFeel Shade™77°

Max UV Index7 (High)

WindN 1 mph

Fri 8/29

79° /62°
20%
Clouds and sunshine

RealFeel®78°

RealFeel Shade™77°

Max UV Index4 (Moderate)

WindS 8 mph

Sat 8/30

81° /59°
10%
Sunny

RealFeel®84°

RealFeel Shade™78°

Max UV Index7 (High)

WindWNW 7 mph

Sun 8/31

79° /61°
25%
Clouds and breaks of sun

RealFeel®77°

RealFeel Shade™77°

Max UV Index4 (Moderate)

WindNNW 8 mph

Mon 9/1

78° /62°
25%
Turning cloudy

RealFeel®81°

RealFeel Shade™76°

Max UV Index7 (High)

WindN 8 mph

Tue 9/2

78° /57°
10%
Mostly sunny

RealFeel®82°

RealFeel Shade™76°

Max UV Index7 (High)

WindN 6 mph

Wed 9/3

77° /55°
5%
Sunny

RealFeel®82°

RealFeel Shade™75°

Max UV Index7 (High)

WindN 5 mph

Thu 9/4

77° /56°
55%
Sun yielding to clouds with a couple of showers in the afternoon

RealFeel®82°

RealFeel Shade™75°

Max UV Index7 (High)

WindSSE 5 mph

Fri 9/5

78° /59°
60%
Times of clouds and sun with a shower in the afternoon

RealFeel®77°

RealFeel Shade™75°

Max UV Index3 (Moderate)

WindNE 5 mph

Sat 9/6

77° /54°
10%
Mostly sunny

RealFeel®82°

RealFeel Shade™75°

Max UV Index7 (High)

WindNE 4 mph

Sun 9/7

78° /56°
25%
Increasing cloudiness

RealFeel®76°

RealFeel Shade™76°

Max UV Index5 (Moderate)

WindSE 6 mph

Mon 9/8

87° /63°
40%
Partly sunny, warmer and humid; a thunderstorm in spots in the afternoon

RealFeel®89°

RealFeel Shade™87°

Max UV Index6 (High)

WindS 10 mph

Tue 9/9

86° /52°
3%
Mostly sunny

RealFeel®86°

RealFeel Shade™84°

Max UV Index6 (High)

WindSSE 13 mph

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World North America United States Illinois South Jacksonville

Weather Near South Jacksonville:

  • Champaign, IL
  • Decatur, IL
  • Springfield, IL
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