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St. Charles, IL

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St. Charles, IL Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities
Air Quality Alert

July 4 - August 17

Fri 7/4

90° /69°
2%
Mainly clear and humid; good viewing conditions for fireworks
alerts

Air Quality Alert

11:10 AM Thursday - 11:00 PM Friday

RealFeel®69°

Cloud Cover20%

WindSSW 7 mph

Wind Gusts14 mph

Sat 7/5

92° /71°
2%
Breezy and hot with some sun; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®95°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindSSW 15 mph

Sun 7/6

83° /62°
41%
Low clouds and not as hot but humid with widely separated thunderstorms

RealFeel®89°

RealFeel Shade™86°

Max UV Index2 (Low)

WindNNE 8 mph

Mon 7/7

84° /62°
3%
Mostly sunny, pleasant and less humid

RealFeel®93°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindN 5 mph

Tue 7/8

87° /67°
8%
Partly sunny

RealFeel®96°

RealFeel Shade™86°

Max UV Index9 (Very High)

WindSW 5 mph

Wed 7/9

85° /66°
73%
Mostly cloudy and humid with a couple of showers and a thunderstorm, mainly later

RealFeel®93°

RealFeel Shade™88°

Max UV Index5 (Moderate)

WindSW 2 mph

Thu 7/10

84° /66°
25%
Cloudy in the morning, then intervals of clouds and sunshine in the afternoon

RealFeel®94°

RealFeel Shade™83°

Max UV Index9 (Very High)

WindNE 5 mph

Fri 7/11

87° /65°
5%
Sunny and humid

RealFeel®98°

RealFeel Shade™89°

Max UV Index10 (Very High)

WindNE 6 mph

Sat 7/12

86° /67°
57%
Partly sunny and humid; a couple of showers in the afternoon

RealFeel®99°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindWNW 1 mph

Sun 7/13

82° /64°
58%
Occasional morning rain; otherwise, cloudy and humid

RealFeel®92°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindNE 5 mph

Mon 7/14

87° /67°
66%
Periods of rain

RealFeel®95°

RealFeel Shade™90°

Max UV Index5 (Moderate)

WindENE 5 mph

Tue 7/15

86° /66°
1%
Humid with plenty of sunshine

RealFeel®100°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindNE 7 mph

Wed 7/16

87° /69°
0%
Humid with plenty of sunshine

RealFeel®101°

RealFeel Shade™95°

Max UV Index10 (Very High)

WindNE 8 mph

Thu 7/17

86° /63°
40%
Cloudy and humid with a thundershower in spots

RealFeel®97°

RealFeel Shade™97°

Max UV Index2 (Low)

WindSW 2 mph

Fri 7/18

86° /67°
20%
Humid with partial sunshine

RealFeel®95°

RealFeel Shade™89°

Max UV Index7 (High)

WindWNW 2 mph

Sat 7/19

87° /68°
25%
Humid with increasing cloudiness

RealFeel®95°

RealFeel Shade™88°

Max UV Index9 (Very High)

WindSW 6 mph

Sun 7/20

88° /68°
25%
Clouds giving way to some sun and humid

RealFeel®101°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindWNW 4 mph

Mon 7/21

87° /67°
20%
Humid with times of clouds and sun

RealFeel®94°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindSSE 6 mph

Tue 7/22

88° /67°
10%
Mostly sunny and warm

RealFeel®92°

RealFeel Shade™86°

Max UV Index10 (Very High)

WindNW 8 mph

Wed 7/23

80° /64°
56%
Mostly sunny and not as warm; a passing shower in the afternoon

RealFeel®88°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindNNE 5 mph

Thu 7/24

79° /63°
25%
Partly sunny

RealFeel®88°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindWSW 2 mph

Fri 7/25

80° /64°
5%
Plenty of sunshine

RealFeel®89°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindWNW 2 mph

Sat 7/26

85° /67°
25%
Cloudy

RealFeel®85°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindNNE 2 mph

Sun 7/27

86° /68°
25%
Considerable cloudiness

RealFeel®89°

RealFeel Shade™84°

Max UV Index4 (Moderate)

WindSSE 4 mph

Mon 7/28

86° /68°
25%
Intervals of clouds and sunshine

RealFeel®91°

RealFeel Shade™86°

Max UV Index6 (High)

WindS 1 mph

Tue 7/29

87° /67°
20%
Mostly sunny

RealFeel®93°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindNW 5 mph

Wed 7/30

86° /67°
10%
Sunny and warm

RealFeel®95°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindSSW 5 mph

Thu 7/31

87° /68°
25%
Warm and humid with times of clouds and sun

RealFeel®90°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindSW 9 mph

Fri 8/1

88° /68°
20%
Partly sunny, warm and humid

RealFeel®98°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindSE 6 mph

Sat 8/2

87° /69°
25%
Mostly cloudy, warm and humid

RealFeel®91°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindSW 9 mph

Sun 8/3

88° /68°
25%
Humid and remaining warm with decreasing clouds

RealFeel®97°

RealFeel Shade™92°

Max UV Index8 (Very High)

WindENE 6 mph

Mon 8/4

86° /68°
5%
Sunny and humid

RealFeel®96°

RealFeel Shade™89°

Max UV Index9 (Very High)

WindS 6 mph

Tue 8/5

88° /69°
25%
Warm and humid with a blend of sun and clouds

RealFeel®89°

RealFeel Shade™87°

Max UV Index4 (Moderate)

WindSW 7 mph

Wed 8/6

87° /67°
57%
Partly sunny, warm and humid; a thunderstorm in the afternoon

RealFeel®94°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindWSW 5 mph

Thu 8/7

85° /67°
63%
Cloudy and humid with a couple of showers and a thunderstorm

RealFeel®86°

RealFeel Shade™86°

Max UV Index2 (Low)

WindNE 9 mph

Fri 8/8

78° /65°
25%
Less humid with a thick cloud cover

RealFeel®76°

RealFeel Shade™76°

Max UV Index2 (Low)

WindENE 12 mph

Sat 8/9

77° /62°
76%
Remaining cloudy with a couple of showers, then a steadier rain

RealFeel®72°

RealFeel Shade™72°

Max UV Index2 (Low)

WindNE 16 mph

Sun 8/10

77° /60°
20%
Mostly sunny

RealFeel®80°

RealFeel Shade™75°

Max UV Index8 (Very High)

WindW 9 mph

Mon 8/11

78° /65°
25%
Times of clouds and sun

RealFeel®80°

RealFeel Shade™79°

Max UV Index4 (Moderate)

WindSW 7 mph

Tue 8/12

81° /66°
25%
Cloudy and humid

RealFeel®83°

RealFeel Shade™83°

Max UV Index2 (Low)

WindSW 4 mph

Wed 8/13

78° /66°
25%
Cloudy and humid

RealFeel®80°

RealFeel Shade™80°

Max UV Index2 (Low)

WindE 4 mph

Thu 8/14

79° /65°
68%
Periods of rain in the morning; otherwise, cloudy and humid

RealFeel®85°

RealFeel Shade™84°

Max UV Index2 (Low)

WindS 4 mph

Fri 8/15

78° /58°
25%
Less humid with a blend of sun and clouds

RealFeel®80°

RealFeel Shade™76°

Max UV Index4 (Moderate)

WindNE 9 mph

Sat 8/16

77° /57°
0%
Mostly sunny with low humidity

RealFeel®79°

RealFeel Shade™74°

Max UV Index8 (Very High)

WindNE 8 mph

Sun 8/17

77° /56°
0%
Plenty of sun

RealFeel®80°

RealFeel Shade™75°

Max UV Index8 (Very High)

WindNE 8 mph

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World North America United States Illinois St. Charles

Weather Near St. Charles:

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