National Harbor, MD

Hourly

2 PM

89° 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% Partly sunny

• RealFeel Shade™: 90°
• Heat Index: 92°
• Wind: E 6 mph
• Air Quality: Poor
• Max UV Index: 7.9 (Very High)
• Wind Gusts: 7 mph
• Humidity: 47%
• Indoor Humidity: 47% (Very Humid)
• Dew Point: 67° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 39%
• Visibility: 10 mi
• Cloud Ceiling: 33400 ft

3 PM

90° RealFeel® 99° 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™: 91°
• Heat Index: 93°
• Wind: E 6 mph
• Air Quality: Poor
• Max UV Index: 5.9 (High)
• Wind Gusts: 8 mph
• Humidity: 47%
• Indoor Humidity: 47% (Very Humid)
• Dew Point: 67° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 45%
• Visibility: 10 mi
• Cloud Ceiling: 29900 ft

4 PM

89° 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 0% Partly sunny

• RealFeel Shade™: 91°
• Heat Index: 93°
• Wind: E 6 mph
• Air Quality: Poor
• Max UV Index: 4.1 (Moderate)
• Wind Gusts: 9 mph
• Humidity: 53%
• Indoor Humidity: 53% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 45%
• Visibility: 10 mi
• Cloud Ceiling: 29900 ft

5 PM

86° 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™: 88°
• Heat Index: 90°
• Wind: E 6 mph
• Air Quality: Poor
• Max UV Index: 2.7 (Moderate)
• Wind Gusts: 10 mph
• Humidity: 57%
• Indoor Humidity: 57% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 45%
• Visibility: 10 mi
• Cloud Ceiling: 29900 ft

6 PM

84° RealFeel® 89° 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% Partly sunny

• RealFeel Shade™: 86°
• Heat Index: 88°
• Wind: E 6 mph
• Air Quality: Poor
• Max UV Index: 1.7 (Low)
• Wind Gusts: 7 mph
• Humidity: 61%
• Indoor Humidity: 61% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 45%
• Visibility: 10 mi
• Cloud Ceiling: 29900 ft

7 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 0% Partly sunny

• RealFeel Shade™: 87°
• Heat Index: 87°
• Wind: ESE 6 mph
• Air Quality: Poor
• Max UV Index: 0.7 (Low)
• Wind Gusts: 7 mph
• Humidity: 62%
• Indoor Humidity: 62% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 4 (Dull)
• Cloud Cover: 45%
• Visibility: 10 mi
• Cloud Ceiling: 29900 ft

8 PM

81° 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 1% Cloudy

• RealFeel Shade™: 83°
• Heat Index: 84°
• Wind: ESE 6 mph
• Air Quality: Fair
• Max UV Index: 0.0 (Low)
• Wind Gusts: 9 mph
• Humidity: 66%
• Indoor Humidity: 66% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 90%
• Visibility: 10 mi
• Cloud Ceiling: 14700 ft

9 PM

78° RealFeel® 81° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 1% Mostly cloudy

• Wind: ESE 6 mph
• Air Quality: Fair
• Wind Gusts: 8 mph
• Humidity: 74%
• Indoor Humidity: 74% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 83%
• Visibility: 10 mi
• Cloud Ceiling: 19800 ft

10 PM

76° RealFeel® 79° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 1% Intermittent clouds

• Wind: ESE 5 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 80%
• Indoor Humidity: 80% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 71%
• Visibility: 10 mi
• Cloud Ceiling: 24900 ft

11 PM

76° RealFeel® 78° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 1% Intermittent clouds

• Wind: ESE 5 mph
• Air Quality: Fair
• Wind Gusts: 6 mph
• Humidity: 82%
• Indoor Humidity: 82% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 65%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft