SAN MARCOS, TX 78666 Weather Forecast & Current Conditions

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78666 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
SAN MARCOS, TX Current Weather
11:56 AM CST NOV 4, 2025
Clear 77°F
Feels Like:	79°F
Dewpoint:	55°F
Rel. Hum.:	47%
Visibility:	10 miles
Wind:	SW at 14 mph, gusts to 17
Pressure:	30.27 inches
Last 72 hours
Local Area Snow Depth
Texas Current Weather
Texas MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

78666 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	SAN MARCOS, TX 78666 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Sunny. Highs in the upper 70s. South winds 5 to 10 mph with gusts up to 20 mph.

TONIGHT
Mostly clear. Lows in the mid 50s. South winds around 5 mph.

WEDNESDAY
Mostly sunny. Highs in the lower 80s. South winds 5 to 10 mph with gusts up to 20 mph.

WEDNESDAY NIGHT
Clear. Lows in the mid 50s. South winds around 5 mph.

THURSDAY
Mostly sunny. Highs in the lower 80s. South winds 5 to 10 mph with gusts up to 20 mph.

THURSDAY NIGHT THROUGH SATURDAY NIGHT
Clear. Lows in the upper 50s. Highs in the upper 80s.

SUNDAY AND SUNDAY NIGHT
Mostly clear. Highs in the mid 70s. Lows in the upper 40s.

MONDAY
Sunny. Highs around 70.

78666 WEATHER SATELLITE LOOPS

Visible Weather Satellite
SAN MARCOS, TX 78666

Infrared Weather Satellite
SAN MARCOS, TX 78666

78666 WEATHER RADAR LOOP

NEXRAD Weather Radar
SAN MARCOS, TX 78666

MOS COMPUTER WEATHER FORECAST

SAN MARCOS, TX 3 hourly weather forecast

weather forecast created 7:00 AM EST 11/ 4/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
CST

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Tuesday
4 NOV 2025

12 PM

75°

Clear

0% Thunder
( 0% severe)

SSW 13

50%

55°

High 81°

3 PM

80°

Clear

S 12

38%

52°

Clear

6 PM

72°

Clear

0% Thunder
( 0% severe)

S 7

49%

52°

9 PM

64°

Clear

S 7

67%

53°

Wednesday
5 NOV 2025

12 AM

59°

58°

Clear

0% Thunder
( 0% severe)

S 8

87%

55°

Low 54°

3 AM

56°

54°

Partly Cloudy

SW 7

93%

54°

High 84°

6 AM

56°

55°

Partly Cloudy

0% Thunder
( 0% severe)

SSW 6

93%

54°

Partly Cloudy

9 AM

67°

Partly Cloudy

SSW 9

78%

60°

12 PM

79°

80°

Partly Cloudy

0% Thunder
( 0% severe)

SSW 13

52%

60°

3 PM

83°

82°

Clear

SSW 10

40%

56°

6 PM

75°

Clear

0% Thunder
( 0% severe)

S 7

50%

55°

9 PM

67°

Clear

S 5

65%

55°

Thursday
6 NOV 2025

12 AM

61°

Clear

0% Thunder
( 0% severe)

S 6

84%

56°

Low 56°

3 AM

59°

58°

Partly Cloudy

SSW 6

90%

56°

High 86°

6 AM

58°

Partly Cloudy

0% Thunder
( 0% severe)

SSW 5

93%

56°

Partly Cloudy

9 AM

68°

Partly Cloudy

SSW 7

81%

62°

12 PM

80°

81°

Clear

0% Thunder
( 0% severe)

S 12

52%

61°

3 PM

84°

83°

Clear

S 12

41%

58°

6 PM

77°

79°

Clear

S 9

48%

56°


SAN MARCOS, TX extended weather forecast
Friday 7 NOV 2025	Saturday 8 NOV 2025	Sunday 9 NOV 2025	Monday 10 NOV 2025	Tuesday 11 NOV 2025
Low 56°	Low 56°	Low 52°	Low 37°	Low 33°
High 88°	High 88°	High 71°	High 67°	High 77°

Clear 2% Rain	Clear 3% Rain	Clear 13% Rain	Clear 8% Rain	Clear 5% Rain

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SAN MARCOS, TX 78666 Weather Forecast & Current Conditions

SAN MARCOS, TX Current Weather

SAN MARCOS, TX 78666 Weather Forecast

SAN MARCOS, TX 3 hourly weather forecast

SAN MARCOS, TX extended weather forecast

SAN MARCOS, TX
Current Weather

SAN MARCOS, TX 78666
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