St. Charles, MO

Hourly

1 PM

82° RealFeel® 83° 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% Thunderstorms

• RealFeel Shade™: 79°
• Wind: WNW 15 mph
• Air Quality: Fair
• Max UV Index: 5 (Moderate)
• Wind Gusts: 28 mph
• Humidity: 64%
• Indoor Humidity: 64% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 2 (Dark)
• Cloud Cover: 91%
• Rain: 0.09 in
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

2 PM

83° 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 40% Mostly sunny

• RealFeel Shade™: 85°
• Wind: WNW 9 mph
• Air Quality: Fair
• Max UV Index: 10 (Very High)
• Wind Gusts: 24 mph
• Humidity: 63%
• Indoor Humidity: 63% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 20%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

3 PM

84° 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 34% Mostly sunny

• RealFeel Shade™: 86°
• Wind: WNW 9 mph
• Air Quality: Fair
• Max UV Index: 7 (High)
• Wind Gusts: 22 mph
• Humidity: 60%
• Indoor Humidity: 60% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 14%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

4 PM

85° RealFeel® 92° 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 37% Sunny

• RealFeel Shade™: 87°
• Wind: NW 8 mph
• Air Quality: Fair
• Max UV Index: 5 (Moderate)
• Wind Gusts: 21 mph
• Humidity: 58%
• Indoor Humidity: 58% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 7%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

5 PM

86° RealFeel® 92° 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 43% Sunny

• RealFeel Shade™: 88°
• Wind: NW 8 mph
• Air Quality: Fair
• Max UV Index: 3 (Moderate)
• Wind Gusts: 21 mph
• Humidity: 57%
• Indoor Humidity: 57% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 9%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

6 PM

85° RealFeel® 90° 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% Mostly sunny

• RealFeel Shade™: 87°
• Wind: NW 8 mph
• Air Quality: Fair
• Max UV Index: 2 (Low)
• Wind Gusts: 18 mph
• Humidity: 59%
• Indoor Humidity: 59% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 10%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

7 PM

83° 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 51% Partly sunny w/ t-storms

• RealFeel Shade™: 84°
• Wind: NW 7 mph
• Air Quality: Fair
• Max UV Index: 1 (Low)
• Wind Gusts: 17 mph
• Humidity: 67%
• Indoor Humidity: 67% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 12%
• Rain: 0.05 in
• Visibility: 5 mi
• Cloud Ceiling: 30000 ft

8 PM

82° 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 51% Partly sunny w/ t-storms

• RealFeel Shade™: 82°
• Wind: NW 7 mph
• Air Quality: Fair
• Max UV Index: 0 (Low)
• Wind Gusts: 15 mph
• Humidity: 68%
• Indoor Humidity: 68% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 28%
• Rain: 0.04 in
• Visibility: 6 mi
• Cloud Ceiling: 30000 ft

9 PM

80° 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 47% Intermittent clouds

• Wind: WNW 6 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 71%
• Indoor Humidity: 71% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 4000 ft

10 PM

78° 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 39% Intermittent clouds

• Wind: WNW 5 mph
• Air Quality: Fair
• Wind Gusts: 12 mph
• Humidity: 77%
• Indoor Humidity: 77% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 60%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

76° RealFeel® 80° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 29% Intermittent clouds

• Wind: NW 4 mph
• Air Quality: Fair
• Wind Gusts: 10 mph
• Humidity: 83%
• Indoor Humidity: 83% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 73%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft