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High risk for severe weather in the central, eastern US. Get the forecast details. Chevron right
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San Marcos, TX

93°F
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San Marcos

Texas

93°
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San Marcos, TX Weather
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4 PM

97°
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.
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rain drop 0%
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Mostly sunny
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

RealFeel Shade™93°

WindW 17 mph

Air QualityFair

Max UV Index3.3 (Moderate)

Wind Gusts27 mph

Humidity23%

Indoor Humidity23% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling33000 ft

5 PM

93°
RealFeel® 90°
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 sunny
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

RealFeel Shade™89°

WindNW 17 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts23 mph

Humidity23%

Indoor Humidity23% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover21%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

88°
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.
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rain drop 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

RealFeel Shade™84°

WindNNW 18 mph

Air QualityPoor

Max UV Index1.0 (Low)

Wind Gusts22 mph

Humidity23%

Indoor Humidity23% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

82°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

RealFeel Shade™78°

WindN 21 mph

Air QualityPoor

Max UV Index0.0 (Low)

Wind Gusts24 mph

Humidity24%

Indoor Humidity24% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover19%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

83°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 0%
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Mostly clear
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

WindN 23 mph

Air QualityUnhealthy

Wind Gusts28 mph

Humidity20%

Indoor Humidity20% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

74°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 0%
Chevron down
Mostly clear
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

WindN 28 mph

Air QualityPoor

Wind Gusts33 mph

Humidity24%

Indoor Humidity24% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

67°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
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rain drop 0%
Chevron down
Mostly clear
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

WindNNE 30 mph

Air QualityPoor

Wind Gusts45 mph

Humidity27%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover21%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

64°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy
alerts

Red Flag Warning

12:00 PM Sunday - 8:00 PM Monday
alerts

Wind Advisory

3:00 PM Sunday - 5:00 AM Monday

WindNNE 30 mph

Air QualityPoor

Wind Gusts40 mph

Humidity26%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover37%

Visibility10 mi

Cloud Ceiling30000 ft

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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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