St. Charles, MO

Hourly

12 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 33% Intermittent clouds

• RealFeel Shade™: 84°
• Heat Index: 87°
• Wind: E 9 mph
• Air Quality: Fair
• Max UV Index: 6.0 (High)
• Wind Gusts: 12 mph
• Humidity: 61%
• Indoor Humidity: 61% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 65%
• Visibility: 10 mi
• Cloud Ceiling: 11100 ft

1 PM

84° 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 36% Intermittent clouds

• RealFeel Shade™: 82°
• Heat Index: 85°
• Wind: E 9 mph
• Air Quality: Poor
• Max UV Index: 5.6 (High)
• Wind Gusts: 13 mph
• Humidity: 54%
• Indoor Humidity: 54% (Humid)
• Dew Point: 66° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 7100 ft

2 PM

84° 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 47% Intermittent clouds

• RealFeel Shade™: 83°
• Heat Index: 86°
• Wind: E 9 mph
• Air Quality: Poor
• Max UV Index: 5.0 (Moderate)
• Wind Gusts: 14 mph
• Humidity: 54%
• Indoor Humidity: 54% (Humid)
• Dew Point: 65° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 7100 ft

3 PM

83° 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% Mostly cloudy w/ t-storms

• RealFeel Shade™: 79°
• Heat Index: 85°
• Wind: E 9 mph
• Air Quality: Poor
• Max UV Index: 3.1 (Moderate)
• Wind Gusts: 14 mph
• Humidity: 56%
• Indoor Humidity: 56% (Humid)
• Dew Point: 66° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Rain: 0.04 in
• Visibility: 6 mi
• Cloud Ceiling: 3900 ft

4 PM

82° 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 47% Intermittent clouds

• RealFeel Shade™: 82°
• Heat Index: 84°
• Wind: E 8 mph
• Air Quality: Poor
• Max UV Index: 2.5 (Low)
• Wind Gusts: 14 mph
• Humidity: 57%
• Indoor Humidity: 57% (Humid)
• Dew Point: 66° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 7000 ft

5 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 34% Intermittent clouds

• RealFeel Shade™: 81°
• Heat Index: 84°
• Wind: E 8 mph
• Air Quality: Poor
• Max UV Index: 1.8 (Low)
• Wind Gusts: 14 mph
• Humidity: 57%
• Indoor Humidity: 57% (Humid)
• Dew Point: 65° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 9500 ft

6 PM

81° 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% Intermittent clouds

• RealFeel Shade™: 80°
• Heat Index: 83°
• Wind: E 8 mph
• Air Quality: Poor
• Max UV Index: 1.2 (Low)
• Wind Gusts: 14 mph
• Humidity: 56%
• Indoor Humidity: 56% (Humid)
• Dew Point: 64° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 12000 ft

7 PM

80° RealFeel® 80° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 34% Intermittent clouds

• RealFeel Shade™: 80°
• Heat Index: 82°
• Wind: E 8 mph
• Air Quality: Fair
• Max UV Index: 0.7 (Low)
• Wind Gusts: 13 mph
• Humidity: 57%
• Indoor Humidity: 57% (Humid)
• Dew Point: 64° F
• AccuLumen Brightness Index™: 4 (Dull)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 14600 ft

8 PM

79° RealFeel® 78° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 34% Intermittent clouds

• RealFeel Shade™: 78°
• Heat Index: 80°
• Wind: E 8 mph
• Air Quality: Fair
• Max UV Index: 0.1 (Low)
• Wind Gusts: 12 mph
• Humidity: 59%
• Indoor Humidity: 59% (Humid)
• Dew Point: 64° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

9 PM

77° RealFeel® 76° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 34% Intermittent clouds

• Wind: E 8 mph
• Air Quality: Fair
• Wind Gusts: 10 mph
• Humidity: 62%
• Indoor Humidity: 62% (Humid)
• Dew Point: 64° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

10 PM

75° RealFeel® 74° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 37% Intermittent clouds

• Wind: E 7 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 66%
• Indoor Humidity: 66% (Humid)
• Dew Point: 64° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

11 PM

75° RealFeel® 73° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 43% Intermittent clouds

• Wind: E 8 mph
• Air Quality: Fair
• Wind Gusts: 9 mph
• Humidity: 66%
• Indoor Humidity: 66% (Humid)
• Dew Point: 63° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 13500 ft