St. Charles, MO

Hourly

2 PM

90° 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 0% Partly sunny

• RealFeel Shade™: 87°
• Wind: WNW 12 mph
• Air Quality: Poor
• Max UV Index: 4.9 (Moderate)
• Wind Gusts: 15 mph
• Humidity: 33%
• Indoor Humidity: 33% (Slightly Humid)
• Dew Point: 58° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 38%
• Visibility: 10 mi
• Cloud Ceiling: 34000 ft

3 PM

87° RealFeel® 86° 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 0% Intermittent clouds

• RealFeel Shade™: 84°
• Wind: NW 15 mph
• Air Quality: Poor
• Max UV Index: 3.0 (Moderate)
• Wind Gusts: 22 mph
• Humidity: 35%
• Indoor Humidity: 35% (Slightly Humid)
• Dew Point: 57° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 64%
• Visibility: 10 mi
• Cloud Ceiling: 17900 ft

4 PM

84° RealFeel® 81° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 0% Cloudy

• RealFeel Shade™: 80°
• Wind: NNW 17 mph
• Air Quality: Poor
• Max UV Index: 1.3 (Low)
• Wind Gusts: 29 mph
• Humidity: 38%
• Indoor Humidity: 38% (Slightly Humid)
• Dew Point: 56° F
• AccuLumen Brightness Index™: 2 (Dark)
• Cloud Cover: 90%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

5 PM

76° RealFeel® 72° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 0% Cloudy

• RealFeel Shade™: 72°
• Wind: NNW 20 mph
• Air Quality: Poor
• Max UV Index: 0.7 (Low)
• Wind Gusts: 29 mph
• Humidity: 45%
• Indoor Humidity: 45% (Ideal Humidity)
• Dew Point: 53° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

6 PM

67° RealFeel® 63° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 0% Cloudy

• RealFeel Shade™: 63°
• Wind: N 22 mph
• Air Quality: Poor
• Max UV Index: 0.3 (Low)
• Wind Gusts: 30 mph
• Humidity: 48%
• Indoor Humidity: 47% (Ideal Humidity)
• Dew Point: 47° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

7 PM

61° RealFeel® 54° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 0% Cloudy

• RealFeel Shade™: 54°
• Wind: N 22 mph
• Air Quality: Fair
• Max UV Index: 0.0 (Low)
• Wind Gusts: 33 mph
• Humidity: 50%
• Indoor Humidity: 39% (Ideal Humidity)
• Dew Point: 42° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 90%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

8 PM

59° RealFeel® 52° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 3% Intermittent clouds

• Wind: N 21 mph
• Air Quality: Fair
• Wind Gusts: 30 mph
• Humidity: 49%
• Indoor Humidity: 36% (Slightly Dry)
• Dew Point: 40° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 66%
• Visibility: 10 mi
• Cloud Ceiling: 19800 ft

9 PM

56° RealFeel® 49° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 3% Partly cloudy

• Wind: N 18 mph
• Air Quality: Fair
• Wind Gusts: 28 mph
• Humidity: 51%
• Indoor Humidity: 33% (Slightly Dry)
• Dew Point: 38° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 46%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

53° RealFeel® 45° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 3% Partly cloudy

• Wind: N 17 mph
• Air Quality: Fair
• Wind Gusts: 24 mph
• Humidity: 53%
• Indoor Humidity: 32% (Slightly Dry)
• Dew Point: 37° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 46%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

51° RealFeel® 42° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 3% Partly cloudy

• Wind: N 15 mph
• Air Quality: Fair
• Wind Gusts: 23 mph
• Humidity: 56%
• Indoor Humidity: 30% (Slightly Dry)
• Dew Point: 35° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 46%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft