SAN ANTONIO, TX 78221 Weather Forecast & Current Conditions

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78221 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
SAN ANTONIO/STIN, TX Current Weather
9:53 AM CST JAN 1, 2026
Clear 57°F
Feels Like:	56°F
Dewpoint:	39°F
Rel. Hum.:	51%
Visibility:	10 miles
Wind:	Variable at 6 mph
Pressure:	30.14 inches
Last 72 hours
Local Area Snow Depth
Texas Current Weather
Texas MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

78221 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	SAN ANTONIO, TX 78221 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Partly cloudy. Highs in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

TONIGHT
Partly cloudy in the evening, then clearing. Not as cool with lows in the lower 50s. Southwest winds 5 to 10 mph.

FRIDAY
Sunny. Not as cool with highs in the mid 80s. West winds 10 to 15 mph with gusts up to 25 mph.

FRIDAY NIGHT
Clear. Lows in the mid 50s. West winds 5 to 10 mph.

SATURDAY
Sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph, becoming northeast in the afternoon.

SATURDAY NIGHT AND SUNDAY
Clear. Lows in the upper 40s. Highs in the mid 70s.

SUNDAY NIGHT
Clear in the evening, then becoming partly cloudy. Lows in the lower 50s.

MONDAY
Cloudy in the morning, then becoming partly cloudy. Highs in the mid 70s.

MONDAY NIGHT AND TUESDAY
Partly cloudy. Lows in the upper 50s. Highs in the upper 70s.

TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.

WEDNESDAY
Partly cloudy. Highs in the upper 70s.

78221 WEATHER SATELLITE LOOPS

Visible Weather Satellite
SAN ANTONIO, TX 78221

Infrared Weather Satellite
SAN ANTONIO, TX 78221

78221 WEATHER RADAR LOOP

NEXRAD Weather Radar
SAN ANTONIO, TX 78221

MOS COMPUTER WEATHER FORECAST

SAN ANTONIO/STIN, TX 3 hourly weather forecast

weather forecast created 7:00 PM EST 12/31/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
1 JAN 2026

12 AM

47°

46°

Clear

0%

0% Thunder
( 0% severe)

SSW 3

43%

26°

Low 42°

3 AM

44°

43°

Partly Cloudy

W 2

53%

28°

High 74°

6 AM

43°

42°

Partly Cloudy

0%

0% Thunder
( 0% severe)

W 2

55%

28°

Partly Cloudy

9 AM

50°

48°

Partly Cloudy

WSW 5

48%

31°

12 PM

66°

66°

Partly Cloudy

1%

0% Thunder
( 0% severe)

SSW 9

38%

40°

3 PM

73°

73°

Partly Cloudy

SSW 9

33%

42°

6 PM

69°

69°

Mostly Cloudy

2%

0% Thunder
( 1% severe)

SSW 6

40%

44°

9 PM

63°

64°

Partly Cloudy

SSW 5

56%

47°

Friday
2 JAN 2026

12 AM

59°

59°

Clear

1%

0% Thunder
( 1% severe)

SW 5

69%

49°

Low 52°

3 AM

56°

55°

Clear

WSW 6

72%

47°

High 86°

6 AM

54°

53°

Clear

0%

0% Thunder
( 1% severe)

WSW 6

74%

46°

Clear

9 AM

61°

60°

Clear

WSW 7

58%

46°

12 PM

79°

79°

Clear

0%

0% Thunder
( 0% severe)

W 10

34%

48°

3 PM

85°

82°

Clear

W 12

25%

45°

6 PM

78°

78°

Clear

0%

0% Thunder
( 0% severe)

W 8

30%

44°

9 PM

68°

68°

Clear

W 6

44%

45°


SAN ANTONIO/STIN, TX extended weather forecast
Saturday 3 JAN 2026	Sunday 4 JAN 2026	Monday 5 JAN 2026	Tuesday 6 JAN 2026	Wednesday 7 JAN 2026
Low 47°	Low 43°	Low 45°	Low 56°	Low 56°
High 77°	High 72°	High 74°	High 78°	High 75°

Clear 4% Rain	Clear 2% Rain	Partly Cloudy 6% Rain	Partly Cloudy 13% Rain	Mostly Cloudy 20% Rain

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