Williamstown, IA

Hourly

2 PM

85° 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 0% Intermittent clouds

• RealFeel Shade™: 91°
• Wind: SSE 13 mph
• Air Quality: Fair
• Max UV Index: 5 (Moderate)
• Wind Gusts: 23 mph
• Humidity: 74%
• Indoor Humidity: 74% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 62%
• Visibility: 10 mi
• Cloud Ceiling: 6700 ft

3 PM

86° 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 0% Mostly cloudy

• RealFeel Shade™: 92°
• Wind: SSE 13 mph
• Air Quality: Fair
• Max UV Index: 2 (Low)
• Wind Gusts: 24 mph
• Humidity: 72%
• Indoor Humidity: 72% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 3 (Dull)
• Cloud Cover: 86%
• Visibility: 10 mi
• Cloud Ceiling: 2600 ft

4 PM

87° 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 0% Cloudy

• RealFeel Shade™: 94°
• Wind: SSE 13 mph
• Air Quality: Fair
• Max UV Index: 1 (Low)
• Wind Gusts: 27 mph
• Humidity: 70%
• Indoor Humidity: 70% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 98%
• Visibility: 10 mi
• Cloud Ceiling: 2600 ft

5 PM

86° 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 0% Mostly cloudy

• RealFeel Shade™: 92°
• Wind: SSE 13 mph
• Air Quality: Fair
• Max UV Index: 2 (Low)
• Wind Gusts: 24 mph
• Humidity: 73%
• Indoor Humidity: 73% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 78%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

6 PM

85° 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 0% Intermittent clouds

• RealFeel Shade™: 92°
• Wind: SSE 12 mph
• Air Quality: Fair
• Max UV Index: 2 (Low)
• Wind Gusts: 23 mph
• Humidity: 76%
• Indoor Humidity: 76% (Extremely Humid)
• Dew Point: 77° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 59%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

7 PM

83° 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 2% Partly sunny

• RealFeel Shade™: 90°
• Wind: SSE 10 mph
• Air Quality: Fair
• Max UV Index: 1 (Low)
• Wind Gusts: 22 mph
• Humidity: 81%
• Indoor Humidity: 81% (Extremely Humid)
• Dew Point: 77° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 40%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

81° 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 47% Mostly sunny

• RealFeel Shade™: 89°
• Wind: SSE 10 mph
• Air Quality: Fair
• Max UV Index: 0 (Low)
• Wind Gusts: 22 mph
• Humidity: 88%
• Indoor Humidity: 88% (Extremely Humid)
• Dew Point: 77° F
• AccuLumen Brightness Index™: 2 (Dark)
• Cloud Cover: 26%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

79° 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 51% Partly cloudy w/ t-storms

• Wind: SSE 10 mph
• Air Quality: Fair
• Wind Gusts: 22 mph
• Humidity: 90%
• Indoor Humidity: 90% (Extremely Humid)
• Dew Point: 76° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 26%
• Rain: 0.15 in
• Visibility: 4 mi
• Cloud Ceiling: 30000 ft

10 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 47% Mostly clear

• Wind: SSE 9 mph
• Air Quality: Fair
• Wind Gusts: 22 mph
• Humidity: 92%
• Indoor Humidity: 92% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 26%
• 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 9% Mostly clear

• Wind: SSE 9 mph
• Air Quality: Fair
• Wind Gusts: 21 mph
• Humidity: 97%
• Indoor Humidity: 95% (Extremely Humid)
• Dew Point: 75° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 26%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft