Chantilly, VA

Hourly

2 PM

95° RealFeel® 105° Very Hot RealFeel Guide Very Hot 101° to 107° Caution advised. 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™: 94°
• Wind: ESE 4 mph
• Air Quality: Poor
• Max UV Index: 9 (Very High)
• Wind Gusts: 5 mph
• Humidity: 34%
• Indoor Humidity: 34% (Slightly Humid)
• Dew Point: 62° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 37%
• Visibility: 10 mi
• Cloud Ceiling: 33400 ft

3 PM

96° RealFeel® 107° Very Hot RealFeel Guide Very Hot 101° to 107° Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 0% Mostly sunny

• RealFeel Shade™: 98°
• Wind: SE 4 mph
• Air Quality: Poor
• Max UV Index: 7 (High)
• Wind Gusts: 5 mph
• Humidity: 39%
• Indoor Humidity: 39% (Very Humid)
• Dew Point: 67° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

4 PM

97° RealFeel® 106° Very Hot RealFeel Guide Very Hot 101° to 107° Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 0% Mostly sunny

• RealFeel Shade™: 100°
• Wind: S 5 mph
• Air Quality: Poor
• Max UV Index: 5 (Moderate)
• Wind Gusts: 6 mph
• Humidity: 41%
• Indoor Humidity: 41% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

5 PM

96° RealFeel® 103° Very Hot RealFeel Guide Very Hot 101° to 107° Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 0% Mostly sunny

• RealFeel Shade™: 98°
• Wind: S 5 mph
• Air Quality: Poor
• Max UV Index: 3 (Moderate)
• Wind Gusts: 6 mph
• Humidity: 42%
• Indoor Humidity: 42% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 17%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

6 PM

94° RealFeel® 100° 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% Mostly sunny

• RealFeel Shade™: 97°
• Wind: S 5 mph
• Air Quality: Poor
• Max UV Index: 2 (Low)
• Wind Gusts: 6 mph
• Humidity: 46%
• Indoor Humidity: 46% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 18%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

7 PM

92° RealFeel® 98° 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% Mostly sunny

• RealFeel Shade™: 98°
• Wind: SSE 6 mph
• Air Quality: Fair
• Max UV Index: 1 (Low)
• Wind Gusts: 6 mph
• Humidity: 50%
• Indoor Humidity: 50% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 19%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

89° RealFeel® 95° 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™: 95°
• Wind: SE 6 mph
• Air Quality: Fair
• Max UV Index: 0 (Low)
• Wind Gusts: 13 mph
• Humidity: 60%
• Indoor Humidity: 60% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 39%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 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 0% Partly cloudy

• Wind: SE 6 mph
• Air Quality: Fair
• Wind Gusts: 14 mph
• Humidity: 68%
• Indoor Humidity: 68% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 32%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

82° 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 0% Mostly clear

• Wind: SSE 6 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 74%
• Indoor Humidity: 74% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

78° 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 0% Mostly clear

• Wind: SSE 6 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 82%
• Indoor Humidity: 82% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 18%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft