San Marcos, TX

Hourly

2 PM

96° RealFeel® 111° Dangerous Heat RealFeel Guide Dangerous Heat 108° to 115° 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 19% Mostly sunny

• RealFeel Shade™: 101°
• Heat Index: 105°
• Wind: NW 6 mph
• Air Quality: Fair
• Max UV Index: 10.6 (Extreme)
• Wind Gusts: 7 mph
• Humidity: 46%
• Indoor Humidity: 46% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

3 PM

97° RealFeel® 108° Dangerous Heat RealFeel Guide Dangerous Heat 108° to 115° 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 19% Mostly sunny

• RealFeel Shade™: 100°
• Heat Index: 104°
• Wind: N 7 mph
• Air Quality: Fair
• Max UV Index: 7.6 (Very High)
• Wind Gusts: 8 mph
• Humidity: 42%
• Indoor Humidity: 42% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 25%
• 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 24% Mostly sunny

• RealFeel Shade™: 101°
• Heat Index: 105°
• Wind: N 7 mph
• Air Quality: Fair
• Max UV Index: 4.7 (Moderate)
• Wind Gusts: 8 mph
• Humidity: 40%
• Indoor Humidity: 40% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

5 PM

96° RealFeel® 102° 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% Mostly sunny

• RealFeel Shade™: 99°
• Heat Index: 103°
• Wind: N 7 mph
• Air Quality: Fair
• Max UV Index: 3.1 (Moderate)
• Wind Gusts: 8 mph
• Humidity: 42%
• Indoor Humidity: 42% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 25%
• 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% Partly sunny w/ t-storms

• RealFeel Shade™: 94°
• Heat Index: 101°
• Wind: NNW 7 mph
• Air Quality: Fair
• Max UV Index: 1.8 (Low)
• Wind Gusts: 8 mph
• Humidity: 47%
• Indoor Humidity: 47% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 9 (Very Bright)
• Cloud Cover: 25%
• Rain: 0.04 in
• Visibility: 6 mi
• Cloud Ceiling: 30000 ft

7 PM

92° 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 47% Mostly sunny

• RealFeel Shade™: 96°
• Heat Index: 98°
• Wind: NNW 7 mph
• Air Quality: Fair
• Max UV Index: 0.7 (Low)
• Wind Gusts: 8 mph
• Humidity: 50%
• Indoor Humidity: 50% (Very Humid)
• Dew Point: 71° F
• AccuLumen Brightness Index™: 4 (Dull)
• Cloud Cover: 25%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

92° 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 47% Cloudy

• RealFeel Shade™: 96°
• Heat Index: 99°
• Wind: NNW 7 mph
• Air Quality: Fair
• Max UV Index: 0.0 (Low)
• Wind Gusts: 7 mph
• Humidity: 52%
• Indoor Humidity: 52% (Extremely Humid)
• Dew Point: 72° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 100%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

89° RealFeel® 91° 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% Thunderstorms

• Heat Index: 96°
• Wind: NW 7 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 59%
• Indoor Humidity: 59% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 96%
• Rain: 0.04 in
• Visibility: 6 mi
• Cloud Ceiling: 4000 ft

10 PM

86° RealFeel® 91° 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

• Heat Index: 92°
• Wind: WNW 7 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 65%
• Indoor Humidity: 65% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 75%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

83° 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 34% Partly cloudy

• Heat Index: 88°
• Wind: W 6 mph
• Air Quality: Fair
• Wind Gusts: 7 mph
• Humidity: 71%
• Indoor Humidity: 71% (Extremely Humid)
• Dew Point: 73° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 46%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft