Reston, VA

Hourly

1 PM

88° 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 77% Thunderstorms

• RealFeel Shade™: 91°
• Heat Index: 95°
• Wind: W 7 mph
• Air Quality: Fair
• Max UV Index: 1.9 (Low)
• Wind Gusts: 10 mph
• Humidity: 61%
• Indoor Humidity: 61% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 99%
• Rain: 0.01 in
• Visibility: 4 mi
• Cloud Ceiling: 10000 ft

2 PM

91° 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 40% Partly sunny

• RealFeel Shade™: 99°
• Heat Index: 104°
• Wind: W 7 mph
• Air Quality: Fair
• Max UV Index: 6.3 (High)
• Wind Gusts: 13 mph
• Humidity: 63%
• Indoor Humidity: 63% (Extremely Humid)
• Dew Point: 77° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 45%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

3 PM

94° RealFeel® 104° 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 34% Intermittent clouds

• RealFeel Shade™: 98°
• Heat Index: 102°
• Wind: WSW 7 mph
• Air Quality: Fair
• Max UV Index: 4.8 (Moderate)
• Wind Gusts: 10 mph
• Humidity: 49%
• Indoor Humidity: 49% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 57%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

4 PM

92° 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 37% Intermittent clouds

• RealFeel Shade™: 97°
• Heat Index: 100°
• Wind: SW 7 mph
• Air Quality: Fair
• Max UV Index: 3.0 (Moderate)
• Wind Gusts: 9 mph
• Humidity: 51%
• Indoor Humidity: 51% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 72%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

5 PM

87° 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 47% Mostly cloudy

• RealFeel Shade™: 92°
• Heat Index: 94°
• Wind: SW 7 mph
• Air Quality: Fair
• Max UV Index: 1.6 (Low)
• Wind Gusts: 8 mph
• Humidity: 61%
• Indoor Humidity: 61% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 4 (Dull)
• Cloud Cover: 82%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

6 PM

82° 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 51% Thunderstorms

• RealFeel Shade™: 90°
• Heat Index: 90°
• Wind: SSW 7 mph
• Air Quality: Fair
• Max UV Index: 0.8 (Low)
• Wind Gusts: 8 mph
• Humidity: 87%
• Indoor Humidity: 87% (Dangerously Humid)
• Dew Point: 78° F
• AccuLumen Brightness Index™: 4 (Dull)
• Cloud Cover: 79%
• Rain: 0.13 in
• Visibility: 4 mi
• Cloud Ceiling: 30000 ft

7 PM

83° 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™: 88°
• Heat Index: 89°
• Wind: S 6 mph
• Air Quality: Fair
• Max UV Index: 0.3 (Low)
• Wind Gusts: 9 mph
• Humidity: 69%
• Indoor Humidity: 69% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

83° 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 34% Intermittent clouds

• Heat Index: 87°
• Wind: SW 6 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 69%
• Indoor Humidity: 69% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 65%
• Visibility: 10 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 34% Intermittent clouds

• Heat Index: 84°
• Wind: SSW 6 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 76%
• Indoor Humidity: 76% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 69%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

77° 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 37% Intermittent clouds

• Wind: SSW 6 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 82%
• Indoor Humidity: 82% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 70%
• 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 43% Intermittent clouds

• Wind: SSW 6 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 87%
• Indoor Humidity: 87% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft