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San Marcos, TX

99°F
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San Marcos, TX Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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6 PM

97°
RealFeel® 98°
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
rain drop 7%
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Mostly sunny
alerts

Heat Advisory

12:00 PM Saturday - 7:00 PM Saturday

RealFeel Shade™97°

Heat Index102°

WindSSE 13 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts23 mph

Humidity40%

Indoor Humidity40% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover17%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

94°
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
rain drop 5%
Chevron down
Sunny

RealFeel Shade™94°

Heat Index99°

WindSE 13 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts25 mph

Humidity42%

Indoor Humidity42% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

94°
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
rain drop 0%
Chevron down
Mostly clear

Heat Index99°

WindSSE 14 mph

Air QualityFair

Wind Gusts24 mph

Humidity45%

Indoor Humidity45% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

91°
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
rain drop 0%
Chevron down
Mostly clear

Heat Index97°

WindSSE 14 mph

Air QualityFair

Wind Gusts22 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

88°
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
rain drop 0%
Chevron down
Mostly clear

Heat Index95°

WindSSE 13 mph

Air QualityFair

Wind Gusts20 mph

Humidity61%

Indoor Humidity61% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

85°
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
rain drop 0%
Chevron down
Mostly clear

Heat Index92°

WindSSE 12 mph

Air QualityFair

Wind Gusts16 mph

Humidity68%

Indoor Humidity68% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for San Marcos

AccuWeather's hourly forecast for San Marcos provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 97° with a RealFeel® of 98°, mostly sunny with a 7% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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World North America United States Texas San Marcos

Weather Near San Marcos:

  • Austin, TX
  • Cedar Park, TX
  • Round Rock, TX
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