Alton, IL

Hourly

8 PM

83° RealFeel® 91° 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 7% Mostly cloudy

• RealFeel Shade™: 91°
• Wind: WNW 6 mph
• Air Quality: Fair
• Max UV Index: 0 (Low)
• Wind Gusts: 14 mph
• Humidity: 79%
• Indoor Humidity: 79% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 77%
• Visibility: 10 mi
• Cloud Ceiling: 33300 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 7% Mostly cloudy

• Wind: NW 6 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 80%
• Indoor Humidity: 80% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 76%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

77° RealFeel® 81° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 7% Mostly cloudy

• Wind: NW 5 mph
• Air Quality: Fair
• Wind Gusts: 12 mph
• Humidity: 79%
• Indoor Humidity: 79% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 76%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

74° RealFeel® 77° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 7% Mostly cloudy

• Wind: NNW 5 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 87%
• Indoor Humidity: 87% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 76%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft