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100 F heat from Utah to the Dakotas; 90-100 from Minnesota to Pennsylvania this week. Click for more. Chevron right
Rounds of storms in the South to raise the risk for flooding into early next week. Get the latest. Chevron right

Crystal Lake, IL

86°F
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Crystal Lake, IL Weather
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July 12 - July 26

Sun 7/12

87° /64°
0%
Sunshine

RealFeel®97°

RealFeel Shade™86°

Max UV Index10.0 (Very High)

WindENE 6 mph

Mon 7/13

90° /69°
0%
Hot and more humid with plenty of sunshine

RealFeel®99°

RealFeel Shade™91°

Max UV Index10.0 (Very High)

WindWNW 7 mph

Tue 7/14

95° /71°
3%
Mostly sunny, hot and humid; caution advised if outside for extended periods of time

RealFeel®105°

RealFeel Shade™98°

Max UV Index10.0 (Very High)

WindW 6 mph

Wed 7/15

92° /70°
6%
Mostly sunny and toasty conditions; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®104°

RealFeel Shade™95°

Max UV Index10.0 (Very High)

WindNNW 7 mph

Thu 7/16

90° /72°
30%
Hot with times of clouds and sun; a thunderstorm possible in the afternoon

RealFeel®97°

RealFeel Shade™90°

Max UV Index7.0 (High)

WindWSW 7 mph

Fri 7/17

92° /70°
30%
Sun and some clouds with a thunderstorm possible; hot

RealFeel®98°

RealFeel Shade™93°

Max UV Index7.0 (High)

WindWSW 10 mph

Sat 7/18

94° /68°
55%
Hot with clouds and some glimpses of blue sky; a thunderstorm in spots in the afternoon

RealFeel®98°

RealFeel Shade™94°

Max UV Index6.0 (High)

WindW 12 mph

Hours of Precipitation1

Hours of Rain1

Sun 7/19

89° /68°
55%
Variable clouds with a strong thunderstorm in spots in the afternoon

RealFeel®95°

RealFeel Shade™93°

Max UV Index10.0 (Very High)

WindWSW 12 mph

Hours of Precipitation0.5

Hours of Rain0.5

Mon 7/20

86° /64°
1%
Less humid with plenty of sunshine

RealFeel®88°

RealFeel Shade™83°

Max UV Index10.0 (Very High)

WindNNW 10 mph

Tue 7/21

86° /64°
3%
Increasing cloudiness

RealFeel®87°

RealFeel Shade™83°

Max UV Index10.0 (Very High)

WindW 9 mph

Wed 7/22

82° /64°
2%
Mostly sunny

RealFeel®95°

RealFeel Shade™85°

Max UV Index10.0 (Very High)

WindSE 4 mph

Thu 7/23

84° /65°
16%
Sunshine dimmed by high clouds in the morning, then mostly cloudy in the afternoon

RealFeel®87°

RealFeel Shade™86°

Max UV Index7.0 (High)

WindS 10 mph

Fri 7/24

85° /64°
49%
A morning shower in places; otherwise, decreasing clouds and humid

RealFeel®88°

RealFeel Shade™85°

Max UV Index10.0 (Very High)

WindW 14 mph

Hours of Precipitation1

Hours of Rain1

Sat 7/25

84° /63°
5%
Sunshine

RealFeel®93°

RealFeel Shade™85°

Max UV Index9.0 (Very High)

WindWSW 4 mph

Sun 7/26

90° /69°
10%
Mostly sunny, hot and humid

RealFeel®101°

RealFeel Shade™92°

Max UV Index9.0 (Very High)

WindWSW 5 mph

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Weather Near Crystal Lake:

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  • Joliet, IL
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