Herndon, GA

Hourly

2 PM

97° 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 40% Mostly cloudy w/ t-storms

alerts Heat Advisory 12:00 PM Monday - 8:00 PM Monday

• RealFeel Shade™: 101°
• Wind: WNW 7 mph
• Air Quality: Fair
• Max UV Index: 6 (High)
• Wind Gusts: 13 mph
• Humidity: 46%
• Indoor Humidity: 46% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 71%
• Visibility: 10 mi
• Cloud Ceiling: 14000 ft

3 PM

97° 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 40% Thunderstorms

alerts Heat Advisory 12:00 PM Monday - 8:00 PM Monday

• RealFeel Shade™: 100°
• Wind: WNW 7 mph
• Air Quality: Fair
• Max UV Index: 3 (Moderate)
• Wind Gusts: 12 mph
• Humidity: 44%
• Indoor Humidity: 44% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

4 PM

98° 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 37% Intermittent clouds

alerts Heat Advisory 12:00 PM Monday - 8:00 PM Monday

• RealFeel Shade™: 101°
• Wind: WNW 7 mph
• Air Quality: Fair
• Max UV Index: 5 (Moderate)
• Wind Gusts: 12 mph
• Humidity: 42%
• Indoor Humidity: 42% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 63%
• 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 47% Intermittent clouds

alerts Heat Advisory 12:00 PM Monday - 8:00 PM Monday

• RealFeel Shade™: 100°
• Wind: WNW 7 mph
• Air Quality: Fair
• Max UV Index: 3 (Moderate)
• Wind Gusts: 12 mph
• Humidity: 43%
• Indoor Humidity: 43% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 65%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

6 PM

94° RealFeel® 97° 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% Mostly cloudy w/ t-storms

alerts Heat Advisory 12:00 PM Monday - 8:00 PM Monday

• RealFeel Shade™: 97°
• Wind: WNW 7 mph
• Air Quality: Fair
• Max UV Index: 1 (Low)
• Wind Gusts: 10 mph
• Humidity: 48%
• Indoor Humidity: 48% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 6 (Medium)
• Cloud Cover: 70%
• Rain: 0.04 in
• Visibility: 6 mi
• Cloud Ceiling: 4000 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 47% Intermittent clouds

alerts Heat Advisory 12:00 PM Monday - 8:00 PM Monday

• RealFeel Shade™: 98°
• Wind: W 6 mph
• Air Quality: Fair
• Max UV Index: 1 (Low)
• Wind Gusts: 7 mph
• Humidity: 52%
• Indoor Humidity: 52% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 4 (Dull)
• Cloud Cover: 62%
• 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 12% Partly sunny

• RealFeel Shade™: 95°
• Wind: WSW 7 mph
• Air Quality: Fair
• Max UV Index: 0 (Low)
• Wind Gusts: 12 mph
• Humidity: 62%
• Indoor Humidity: 62% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 45%
• 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 12% Partly cloudy

• Wind: WSW 6 mph
• Air Quality: Fair
• Wind Gusts: 12 mph
• Humidity: 71%
• Indoor Humidity: 71% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 40%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

81° 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 12% Partly cloudy

• Wind: W 6 mph
• Air Quality: Fair
• Wind Gusts: 10 mph
• Humidity: 78%
• Indoor Humidity: 78% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 30%
• 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 12% Mostly clear

• Wind: WNW 6 mph
• Air Quality: Fair
• Wind Gusts: 10 mph
• Humidity: 87%
• Indoor Humidity: 87% (Extremely Humid)
• Dew Point: 74° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 26%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft