Reston, VA

Hourly

1 PM

81° RealFeel® 94° 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 56% Thunderstorms

• RealFeel Shade™: 89°
• Heat Index: 88°
• Wind: SSE 6 mph
• Air Quality: Fair
• Max UV Index: 2.4 (Low)
• Wind Gusts: 7 mph
• Humidity: 87%
• Indoor Humidity: 87% (Extremely Humid)
• Dew Point: 77° F
• AccuLumen Brightness Index™: 2 (Dark)
• Cloud Cover: 92%
• Visibility: 5 mi
• Cloud Ceiling: 1700 ft

2 PM

82° RealFeel® 96° 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 46% Intermittent clouds

• RealFeel Shade™: 90°
• Heat Index: 89°
• Wind: SSE 6 mph
• Air Quality: Fair
• Max UV Index: 3.7 (Moderate)
• Wind Gusts: 9 mph
• Humidity: 81%
• Indoor Humidity: 81% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 2000 ft

3 PM

83° 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 54% Mostly cloudy w/ t-storms

• RealFeel Shade™: 88°
• Heat Index: 91°
• Wind: SSE 7 mph
• Air Quality: Fair
• Max UV Index: 2.4 (Low)
• Wind Gusts: 10 mph
• Humidity: 79%
• Indoor Humidity: 79% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Rain: 0.06 in
• Visibility: 5 mi
• Cloud Ceiling: 3700 ft

4 PM

84° RealFeel® 96° 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 49% Intermittent clouds

• RealFeel Shade™: 91°
• Heat Index: 93°
• Wind: S 7 mph
• Air Quality: Fair
• Max UV Index: 2.1 (Low)
• Wind Gusts: 10 mph
• Humidity: 76%
• Indoor Humidity: 76% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 5400 ft

5 PM

83° RealFeel® 94° 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% Intermittent clouds

• RealFeel Shade™: 90°
• Heat Index: 91°
• Wind: S 7 mph
• Air Quality: Fair
• Max UV Index: 1.6 (Low)
• Wind Gusts: 10 mph
• Humidity: 79%
• Indoor Humidity: 79% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 65%
• Visibility: 10 mi
• Cloud Ceiling: 7100 ft

6 PM

82° 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 47% Intermittent clouds

• RealFeel Shade™: 89°
• Heat Index: 89°
• Wind: S 7 mph
• Air Quality: Fair
• Max UV Index: 1.1 (Low)
• Wind Gusts: 10 mph
• Humidity: 80%
• Indoor Humidity: 80% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

7 PM

81° RealFeel® 87° 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™: 87°
• Heat Index: 87°
• Wind: S 6 mph
• Air Quality: Fair
• Max UV Index: 0.4 (Low)
• Wind Gusts: 9 mph
• Humidity: 84%
• Indoor Humidity: 84% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 4 (Dull)
• Cloud Cover: 62%
• Rain: 0.06 in
• Visibility: 5 mi
• Cloud Ceiling: 4000 ft

8 PM

79° 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 43% Intermittent clouds

• RealFeel Shade™: 88°
• Heat Index: 84°
• Wind: SSE 6 mph
• Air Quality: Fair
• Max UV Index: 0.0 (Low)
• Wind Gusts: 8 mph
• Humidity: 87%
• Indoor Humidity: 87% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

78° 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

• Heat Index: 80°
• Wind: SSE 6 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 90%
• Indoor Humidity: 90% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 66%
• Rain: 0.04 in
• Visibility: 6 mi
• Cloud Ceiling: 4000 ft

10 PM

77° 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: SSE 6 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 93%
• Indoor Humidity: 93% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 66%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

76° 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

• Wind: S 6 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 95%
• Indoor Humidity: 95% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 65%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft