Johnston, IA

Hourly

4 PM

85° 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 19% Mostly cloudy

• RealFeel Shade™: 88°
• Heat Index: 90°
• Wind: NE 6 mph
• Air Quality: Fair
• Max UV Index: 3.8 (Moderate)
• Wind Gusts: 14 mph
• Humidity: 62%
• Indoor Humidity: 62% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 76%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

5 PM

84° RealFeel® 93° 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™: 89°
• Heat Index: 89°
• Wind: NE 6 mph
• Air Quality: Fair
• Max UV Index: 2.7 (Moderate)
• Wind Gusts: 13 mph
• Humidity: 68%
• Indoor Humidity: 68% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 76%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

6 PM

82° RealFeel® 86° 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% Thunderstorms

• RealFeel Shade™: 86°
• Heat Index: 88°
• Wind: NE 6 mph
• Air Quality: Fair
• Max UV Index: 0.7 (Low)
• Wind Gusts: 12 mph
• Humidity: 78%
• Indoor Humidity: 78% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 76%
• Rain: 0.15 in
• Visibility: 4 mi
• Cloud Ceiling: 2000 ft

7 PM

80° RealFeel® 86° 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% Mostly cloudy

• RealFeel Shade™: 86°
• Heat Index: 83°
• Wind: NE 6 mph
• Air Quality: Fair
• Max UV Index: 0.8 (Low)
• Wind Gusts: 13 mph
• Humidity: 76%
• Indoor Humidity: 76% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 2 (Dark)
• Cloud Cover: 88%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

80° RealFeel® 86° 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% Mostly cloudy

• RealFeel Shade™: 86°
• Heat Index: 84°
• Wind: E 6 mph
• Air Quality: Fair
• Max UV Index: 0.3 (Low)
• Wind Gusts: 6 mph
• Humidity: 76%
• Indoor Humidity: 76% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 85%
• 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 34% Mostly cloudy

• Wind: ESE 5 mph
• Air Quality: Fair
• Wind Gusts: 6 mph
• Humidity: 84%
• Indoor Humidity: 84% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 87%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

76° RealFeel® 81° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 37% Mostly cloudy

• Wind: ESE 5 mph
• Air Quality: Fair
• Wind Gusts: 6 mph
• Humidity: 88%
• Indoor Humidity: 88% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 88%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

74° RealFeel® 79° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 48% Mostly cloudy

• Wind: ESE 5 mph
• Air Quality: Fair
• Wind Gusts: 5 mph
• Humidity: 94%
• Indoor Humidity: 94% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 89%
• Visibility: 10 mi
• Cloud Ceiling: 24900 ft