Mark, IL

Hourly

1 PM

89° RealFeel® 97° Hot RealFeel Guide Hot 90° to 100° Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 52% Thunderstorms

• RealFeel Shade™: 94°
• Wind: WNW 6 mph
• Air Quality: Fair
• Max UV Index: 2 (Low)
• Wind Gusts: 7 mph
• Humidity: 66%
• Indoor Humidity: 66% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 96%
• Rain: 0.05 in
• Visibility: 5 mi
• Cloud Ceiling: 4000 ft

2 PM

90° RealFeel® 99° Hot RealFeel Guide Hot 90° to 100° Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 47% Cloudy

• RealFeel Shade™: 96°
• Wind: WSW 6 mph
• Air Quality: Fair
• Max UV Index: 3 (Moderate)
• Wind Gusts: 9 mph
• Humidity: 58%
• Indoor Humidity: 58% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 96%
• Visibility: 10 mi
• Cloud Ceiling: 9600 ft

3 PM

91° RealFeel® 101° Very Hot RealFeel Guide Very Hot 101° to 107° Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 47% Intermittent clouds

• RealFeel Shade™: 96°
• Wind: SSW 7 mph
• Air Quality: Fair
• Max UV Index: 4 (Moderate)
• Wind Gusts: 10 mph
• Humidity: 56%
• Indoor Humidity: 56% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 12100 ft

4 PM

90° RealFeel® 95° Hot RealFeel Guide Hot 90° to 100° Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 51% Mostly cloudy w/ t-storms

• RealFeel Shade™: 93°
• Wind: SSW 7 mph
• Air Quality: Fair
• Max UV Index: 2 (Low)
• Wind Gusts: 13 mph
• Humidity: 58%
• Indoor Humidity: 58% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Rain: 0.05 in
• Visibility: 5 mi
• Cloud Ceiling: 4000 ft

5 PM

89° RealFeel® 97° Hot RealFeel Guide Hot 90° to 100° Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 39% Intermittent clouds

• RealFeel Shade™: 93°
• Wind: SSW 7 mph
• Air Quality: Fair
• Max UV Index: 3 (Moderate)
• Wind Gusts: 10 mph
• Humidity: 58%
• Indoor Humidity: 58% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 51%
• Visibility: 10 mi
• Cloud Ceiling: 19800 ft

6 PM

88° RealFeel® 95° Hot RealFeel Guide Hot 90° to 100° Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 33% Partly sunny

• RealFeel Shade™: 92°
• Wind: SW 7 mph
• Air Quality: Fair
• Max UV Index: 2 (Low)
• Wind Gusts: 8 mph
• Humidity: 61%
• Indoor Humidity: 61% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 46%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

7 PM

86° RealFeel® 93° Hot RealFeel Guide Hot 90° to 100° Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 39% Partly sunny

• RealFeel Shade™: 91°
• Wind: SW 7 mph
• Air Quality: Fair
• Max UV Index: 1 (Low)
• Wind Gusts: 8 mph
• Humidity: 65%
• Indoor Humidity: 65% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 46%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

82° RealFeel® 87° Very Warm RealFeel Guide Very Warm 82° to 89° Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine. LEARN MORE 51% Partly sunny w/ t-storms

• RealFeel Shade™: 87°
• Wind: S 6 mph
• Air Quality: Fair
• Max UV Index: 0 (Low)
• Wind Gusts: 13 mph
• Humidity: 78%
• Indoor Humidity: 78% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 2 (Dark)
• Cloud Cover: 45%
• Rain: 0.04 in
• Visibility: 7 mi
• Cloud Ceiling: 30000 ft

9 PM

80° RealFeel® 87° Very Warm RealFeel Guide Very Warm 82° to 89° Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine. LEARN MORE 47% Partly cloudy

• Wind: SE 6 mph
• Air Quality: Fair
• Wind Gusts: 14 mph
• Humidity: 82%
• Indoor Humidity: 82% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 31%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

78° RealFeel® 84° Very Warm RealFeel Guide Very Warm 82° to 89° Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine. LEARN MORE 40% Mostly clear

• Wind: SE 6 mph
• Air Quality: Fair
• Wind Gusts: 15 mph
• Humidity: 89%
• Indoor Humidity: 89% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 28%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

76° RealFeel® 82° Very Warm RealFeel Guide Very Warm 82° to 89° Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine. LEARN MORE 32% Mostly clear

• Wind: SSE 6 mph
• Air Quality: Fair
• Wind Gusts: 15 mph
• Humidity: 91%
• Indoor Humidity: 91% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 26%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft