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St. Johns, IL

91°F
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St. Johns

Illinois

91°
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St. Johns, IL Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities

July 16 - August 29

Wed 7/16

92° /74°
40%
Turning cloudy and uncomfortably humid; a shower in places this afternoon

RealFeel®109°

RealFeel Shade™99°

Max UV Index11 (Extreme)

WindSW 7 mph

Thu 7/17

88° /71°
89%
Some sun, then clouds and humid; a couple of afternoon showers and a thunderstorm; thunderstorms can bring flash flooding and localized damaging wind gusts

RealFeel®106°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindWNW 7 mph

Fri 7/18

85° /72°
88%
Cloudy and very humid with a couple of showers and a thunderstorm

RealFeel®99°

RealFeel Shade™92°

Max UV Index6 (High)

WindSW 7 mph

Sat 7/19

87° /75°
80%
Clouds and sunshine with a thunderstorm; very humid

RealFeel®103°

RealFeel Shade™97°

Max UV Index8 (Very High)

WindSSW 9 mph

Sun 7/20

90° /72°
40%
Uncomfortably humid with times of sun and clouds; a thunderstorm in spots in the afternoon

RealFeel®107°

RealFeel Shade™98°

Max UV Index9 (Very High)

WindWSW 6 mph

Mon 7/21

90° /75°
25%
Uncomfortably humid with a blend of sun and clouds

RealFeel®109°

RealFeel Shade™99°

Max UV Index11 (Extreme)

WindSSE 5 mph

Tue 7/22

92° /75°
12%
Mostly sunny, hot and very humid

RealFeel®109°

RealFeel Shade™100°

Max UV Index11 (Extreme)

WindS 6 mph

Wed 7/23

97° /74°
58%
Partly sunny, very hot and humid with a couple of thunderstorms

RealFeel®113°

RealFeel Shade™106°

Max UV Index7 (High)

WindSSE 5 mph

Thu 7/24

96° /75°
4%
Plenty of sun, hot and humid

RealFeel®112°

RealFeel Shade™104°

Max UV Index11 (Extreme)

WindSSE 5 mph

Fri 7/25

93° /72°
4%
Partly sunny, hot and humid

RealFeel®107°

RealFeel Shade™102°

Max UV Index10 (Very High)

WindSSE 6 mph

Sat 7/26

91° /72°
80%
Cloudy with rain and a thunderstorm in the afternoon

RealFeel®101°

RealFeel Shade™97°

Max UV Index10 (Very High)

WindE 5 mph

Sun 7/27

89° /70°
65%
Humid with times of clouds and sun; an afternoon thunderstorm or two

RealFeel®103°

RealFeel Shade™96°

Max UV Index10 (Very High)

WindNE 5 mph

Mon 7/28

90° /73°
20%
Humid; mostly cloudy in the morning followed by sun through high clouds in the afternoon

RealFeel®99°

RealFeel Shade™99°

Max UV Index6 (High)

WindENE 7 mph

Tue 7/29

87° /67°
74%
Variable cloudiness with a couple of showers and a thunderstorm in the afternoon

RealFeel®91°

RealFeel Shade™87°

Max UV Index7 (High)

WindNW 5 mph

Wed 7/30

90° /72°
25%
Increasing clouds

RealFeel®93°

RealFeel Shade™92°

Max UV Index5 (Moderate)

WindSW 7 mph

Thu 7/31

89° /71°
25%
Cloudy and humid

RealFeel®96°

RealFeel Shade™95°

Max UV Index3 (Moderate)

WindSW 2 mph

Fri 8/1

90° /72°
10%
Mostly sunny and less humid

RealFeel®94°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindSW 8 mph

Sat 8/2

90° /71°
42%
Variable clouds; a shower in spots in the morning followed by a thunderstorm in spots in the afternoon

RealFeel®95°

RealFeel Shade™95°

Max UV Index5 (Moderate)

WindW 5 mph

Sun 8/3

87° /70°
65%
Uncomfortably humid with considerable cloudiness; a thunderstorm or two in the afternoon

RealFeel®99°

RealFeel Shade™94°

Max UV Index3 (Moderate)

WindENE 4 mph

Mon 8/4

83° /67°
25%
Less humid with considerable cloudiness

RealFeel®85°

RealFeel Shade™83°

Max UV Index3 (Moderate)

WindNE 7 mph

Tue 8/5

83° /64°
5%
Low humidity with plenty of sunshine

RealFeel®88°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindNE 6 mph

Wed 8/6

84° /64°
20%
Mostly sunny

RealFeel®92°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindENE 4 mph

Thu 8/7

84° /68°
25%
Increasing cloudiness

RealFeel®85°

RealFeel Shade™84°

Max UV Index6 (High)

WindSSW 7 mph

Fri 8/8

89° /69°
59%
A morning thunderstorm; otherwise, humid with clouds yielding to sun

RealFeel®98°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindNW 6 mph

Sat 8/9

83° /67°
20%
Mostly sunny and humid

RealFeel®93°

RealFeel Shade™83°

Max UV Index9 (Very High)

WindNNE 6 mph

Sun 8/10

83° /67°
10%
Sunny

RealFeel®93°

RealFeel Shade™83°

Max UV Index9 (Very High)

WindNE 5 mph

Mon 8/11

84° /66°
20%
Mostly sunny

RealFeel®95°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindESE 4 mph

Tue 8/12

86° /69°
10%
Mostly sunny

RealFeel®93°

RealFeel Shade™86°

Max UV Index9 (Very High)

WindS 6 mph

Wed 8/13

88° /69°
10%
Mostly sunny

RealFeel®94°

RealFeel Shade™89°

Max UV Index9 (Very High)

WindS 7 mph

Thu 8/14

89° /70°
65%
Humid with intervals of clouds and sunshine; a couple of showers and a thunderstorm in the afternoon

RealFeel®95°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindS 10 mph

Fri 8/15

89° /70°
25%
Humid with times of clouds and sun

RealFeel®95°

RealFeel Shade™93°

Max UV Index9 (Very High)

WindS 8 mph

Sat 8/16

88° /69°
20%
Sunny to partly cloudy and humid

RealFeel®97°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindSE 6 mph

Sun 8/17

89° /69°
5%
Sunny and uncomfortably humid

RealFeel®102°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindSE 4 mph

Mon 8/18

90° /70°
5%
Sunny and humid

RealFeel®102°

RealFeel Shade™94°

Max UV Index9 (Very High)

WindSSE 5 mph

Tue 8/19

90° /70°
5%
Sunshine and uncomfortably humid

RealFeel®103°

RealFeel Shade™96°

Max UV Index9 (Very High)

WindS 5 mph

Wed 8/20

89° /69°
20%
Mostly sunny and uncomfortably humid

RealFeel®100°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindS 7 mph

Thu 8/21

89° /69°
10%
Mostly sunny and uncomfortably humid

RealFeel®103°

RealFeel Shade™95°

Max UV Index8 (Very High)

WindS 5 mph

Fri 8/22

90° /68°
20%
Mostly sunny and humid

RealFeel®103°

RealFeel Shade™95°

Max UV Index8 (Very High)

WindESE 5 mph

Sat 8/23

90° /69°
25%
Hot and humid with intervals of clouds and sunshine

RealFeel®98°

RealFeel Shade™95°

Max UV Index3 (Moderate)

WindE 5 mph

Sun 8/24

89° /69°
20%
Warm and humid with sunshine

RealFeel®99°

RealFeel Shade™91°

Max UV Index8 (Very High)

WindSSE 5 mph

Mon 8/25

90° /68°
20%
Partly sunny, hot and humid

RealFeel®97°

RealFeel Shade™91°

Max UV Index7 (High)

WindSW 5 mph

Tue 8/26

89° /69°
5%
Warm and humid with plenty of sunshine

RealFeel®102°

RealFeel Shade™94°

Max UV Index8 (Very High)

WindSSW 2 mph

Wed 8/27

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

RealFeel®97°

RealFeel Shade™94°

Max UV Index4 (Moderate)

WindNNW 2 mph

Thu 8/28

88° /69°
65%
A couple of morning showers and a thunderstorm; otherwise, humid and remaining warm with variable cloudiness

RealFeel®97°

RealFeel Shade™92°

Max UV Index2 (Low)

WindNNW 4 mph

Fri 8/29

84° /66°
5%
Mostly cloudy and humid

RealFeel®91°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindENE 6 mph

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Weather Near St. Johns:

  • Cape Girardeau, MO
  • Carbondale, IL
  • Paducah, KY
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