Alton, MO

Hourly

5 PM

90° 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 75% Mostly cloudy w/ t-storms

• RealFeel Shade™: 91°
• Heat Index: 97°
• Wind: N 7 mph
• Air Quality: Fair
• Max UV Index: 0.9 (Low)
• Wind Gusts: 13 mph
• Humidity: 54%
• Indoor Humidity: 54% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 73%
• Rain: 0.17 in
• Visibility: 4 mi
• Cloud Ceiling: 8000 ft

6 PM

87° RealFeel® 89° 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 65% Thunderstorms

• RealFeel Shade™: 89°
• Heat Index: 92°
• Wind: WNW 6 mph
• Air Quality: Fair
• Max UV Index: 0.4 (Low)
• Wind Gusts: 12 mph
• Humidity: 60%
• Indoor Humidity: 60% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 98%
• Rain: 0.01 in
• Visibility: 10 mi
• Cloud Ceiling: 17200 ft

7 PM

83° RealFeel® 88° 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 49% Cloudy

• RealFeel Shade™: 88°
• Heat Index: 88°
• Wind: W 6 mph
• Air Quality: Fair
• Max UV Index: 0.1 (Low)
• Wind Gusts: 10 mph
• Humidity: 69%
• Indoor Humidity: 69% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 97%
• Visibility: 10 mi
• Cloud Ceiling: 20800 ft

8 PM

80° RealFeel® 85° 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 34% Mostly clear

• Heat Index: 83°
• Wind: N 6 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 78%
• Indoor Humidity: 78% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

77° 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 34% Mostly clear

• Wind: NNE 5 mph
• Air Quality: Fair
• Wind Gusts: 6 mph
• Humidity: 84%
• Indoor Humidity: 84% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

75° RealFeel® 80° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 40% Mostly clear

• Wind: NE 5 mph
• Air Quality: Fair
• Wind Gusts: 5 mph
• Humidity: 88%
• Indoor Humidity: 88% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

74° RealFeel® 75° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 51% Partly cloudy w/ t-storms

• Wind: NE 5 mph
• Air Quality: Fair
• Wind Gusts: 5 mph
• Humidity: 90%
• Indoor Humidity: 90% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Rain: 0.05 in
• Visibility: 5 mi
• Cloud Ceiling: 30000 ft