Keystone, SD

Hourly

4 PM

70° RealFeel® 71° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 40% Partly sunny

• RealFeel Shade™: 67°
• Wind: ESE 9 mph
• Air Quality: Fair
• Max UV Index: 3.1 (Moderate)
• Wind Gusts: 21 mph
• Humidity: 48%
• Indoor Humidity: 48% (Ideal Humidity)
• Dew Point: 50° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 42%
• Visibility: 10 mi
• Cloud Ceiling: 33000 ft

5 PM

68° RealFeel® 64° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 70% Partly sunny w/ t-storms

• RealFeel Shade™: 61°
• Wind: SE 9 mph
• Air Quality: Fair
• Max UV Index: 2.0 (Low)
• Wind Gusts: 24 mph
• Humidity: 65%
• Indoor Humidity: 65% (Slightly Humid)
• Dew Point: 56° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 46%
• Rain: 0.15 in
• Visibility: 4 mi
• Cloud Ceiling: 30000 ft

6 PM

65° RealFeel® 63° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 49% Intermittent clouds

• RealFeel Shade™: 62°
• Wind: SE 12 mph
• Air Quality: Fair
• Max UV Index: 1.1 (Low)
• Wind Gusts: 27 mph
• Humidity: 69%
• Indoor Humidity: 62% (Ideal Humidity)
• Dew Point: 55° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 58%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

7 PM

62° RealFeel® 58° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 49% Intermittent clouds

• RealFeel Shade™: 58°
• Wind: SE 13 mph
• Air Quality: Fair
• Max UV Index: 0.2 (Low)
• Wind Gusts: 27 mph
• Humidity: 75%
• Indoor Humidity: 61% (Ideal Humidity)
• Dew Point: 54° F
• AccuLumen Brightness Index™: 1 (Dark)
• Cloud Cover: 70%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

61° RealFeel® 59° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 49% Cloudy

• Wind: SSE 7 mph
• Air Quality: Fair
• Wind Gusts: 17 mph
• Humidity: 72%
• Indoor Humidity: 57% (Ideal Humidity)
• Dew Point: 52° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 95%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

59° RealFeel® 57° Cool RealFeel Guide Cool 53° to 62° Light jacket or sweater may be appropriate. LEARN MORE 49% Cloudy

• Wind: S 7 mph
• Air Quality: Fair
• Wind Gusts: 16 mph
• Humidity: 80%
• Indoor Humidity: 57% (Ideal Humidity)
• Dew Point: 52° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 95%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

56° RealFeel® 48° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 60% Thunderstorms

• Wind: S 7 mph
• Air Quality: Fair
• Wind Gusts: 16 mph
• Humidity: 90%
• Indoor Humidity: 59% (Ideal Humidity)
• Dew Point: 53° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 96%
• Rain: 0.28 in
• Visibility: 3 mi
• Cloud Ceiling: 2000 ft

11 PM

58° RealFeel® 51° Chilly RealFeel Guide Chilly 40° to 52° Jacket or sweater is recommended. LEARN MORE 55% Thunderstorms

• Wind: S 8 mph
• Air Quality: Fair
• Wind Gusts: 15 mph
• Humidity: 86%
• Indoor Humidity: 60% (Ideal Humidity)
• Dew Point: 54° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 100%
• Rain: 0.14 in
• Visibility: 4 mi
• Cloud Ceiling: 2000 ft