SAN ANTONIO, TX 78221 Weather Forecast & Current Conditions

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SAN ANTONIO/STIN, TX
Current Weather

9:53 PM CDT SEP 18, 2025
Clear
84°F
Feels Like: 85°F
Dewpoint: 64°F
Rel. Hum.: 51%
Visibility: 10 miles
Wind: SSE at 10 mph
Pressure: 29.96 inches
Last 72 hours

Local Area Snow Depth

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SAN ANTONIO, TX 78221
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy. Lows in the lower 70s. Southeast winds 5 to 10 mph.
FRIDAY
Mostly sunny. Highs in the mid 90s. East winds 5 to 10 mph.
FRIDAY NIGHT
Mostly clear. Lows around 70. Southeast winds 5 to 10 mph.
SATURDAY
Mostly sunny. Highs in the mid 90s. East winds 5 to 10 mph.
SATURDAY NIGHT
Mostly clear. Lows in the lower 70s. Southeast winds 5 to 10 mph.
SUNDAY AND SUNDAY NIGHT
Mostly clear. Highs in the mid 90s. Lows in the lower 70s.
MONDAY
Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers. Lows in the lower 70s.
TUESDAY
Partly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 50 percent.
TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 70s. Chance of rain 30 percent.
WEDNESDAY
Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s.
WEDNESDAY NIGHT AND THURSDAY
Mostly clear. Lows around 70. Highs in the lower 90s.

Visible Weather Satellite
SAN ANTONIO, TX 78221
Infrared Weather Satellite
SAN ANTONIO, TX 78221
NEXRAD Weather Radar
SAN ANTONIO, TX 78221

SAN ANTONIO/STIN, TX 3 hourly weather forecast

weather forecast created  8:00 AM EDT  9/18/2025
Thursday
18 SEP 2025
SAN ANTONIO, TX 78221 weather forecast Day 1, 12 hours 1 PM 90° 91° Partly Cloudy 4%

0% Thunder
( 12% severe)
SE   8 41% 63°
High 95° SAN ANTONIO, TX 78221 weather forecast Day 1, 15 hours 4 PM 94° 94° Partly Cloudy SE   9 32% 60°
Partly Cloudy



SAN ANTONIO, TX 78221 weather forecast Day 1, 18 hours 7 PM 91° 91° Mostly Cloudy 3%

0% Thunder
( 7% severe)
SE   10 36% 60°
SAN ANTONIO, TX 78221 weather forecast Day 1, 21 hours 10 PM 84° 86° Partly Cloudy SE   9 53% 65°
Friday
19 SEP 2025
SAN ANTONIO, TX 78221 weather forecast Day 2, 0 hours 1 AM 78° 80° Partly Cloudy 1%

0% Thunder
( 2% severe)
SSE   3 69% 67°
Low 72° SAN ANTONIO, TX 78221 weather forecast Day 2, 3 hours 4 AM 75° 75° Partly Cloudy E   1 82% 69°
High 97° SAN ANTONIO, TX 78221 weather forecast Day 2, 6 hours 7 AM 73° 73° Partly Cloudy 2%

0% Thunder
( 3% severe)
N   1 87% 69°

Partly Cloudy



SAN ANTONIO, TX 78221 weather forecast Day 2, 9 hours 10 AM 82° 85° Clear E   2 65% 69°
SAN ANTONIO, TX 78221 weather forecast Day 2, 12 hours 1 PM 91° 92° Partly Cloudy 10%
RAIN
<.01 in
0% Thunder
( 9% severe)
E   7 40% 63°
SAN ANTONIO, TX 78221 weather forecast Day 2, 15 hours 4 PM 95° 94° Partly Cloudy E   8 30% 59°
SAN ANTONIO, TX 78221 weather forecast Day 2, 18 hours 7 PM 92° 91° Partly Cloudy 1%

0% Thunder
( 5% severe)
SE   9 32% 58°
SAN ANTONIO, TX 78221 weather forecast Day 2, 21 hours 10 PM 84° 85° Partly Cloudy SE   8 48% 62°
Saturday
20 SEP 2025
SAN ANTONIO, TX 78221 weather forecast Day 3, 0 hours 1 AM 78° 80° Clear 1%

0% Thunder
( 2% severe)
SSE   3 67% 66°
Low 72° SAN ANTONIO, TX 78221 weather forecast Day 3, 3 hours 4 AM 74° 74° Clear ESE   1 82% 68°
High 97° SAN ANTONIO, TX 78221 weather forecast Day 3, 6 hours 7 AM 73° 73° Partly Cloudy 1%

0% Thunder
( 2% severe)
ENE   1 84% 68°

Partly Cloudy



SAN ANTONIO, TX 78221 weather forecast Day 3, 9 hours 10 AM 81° 84° Partly Cloudy E   3 67% 69°
SAN ANTONIO, TX 78221 weather forecast Day 3, 15 hours 1 PM 90° 91° Partly Cloudy 4%

0% Thunder
( 10% severe)
ESE   7 41% 63°
SAN ANTONIO, TX 78221 weather forecast Day 3, 18 hours 4 PM 95° 95° Partly Cloudy ESE   8 31% 60°
SAN ANTONIO, TX 78221 weather forecast Day 3, 21 hours 7 PM 92° 91° Partly Cloudy     SE   10 33% 59°

SAN ANTONIO/STIN, TX extended weather forecast

Sunday
21 SEP 2025
Monday
22 SEP 2025
Tuesday
23 SEP 2025
Wednesday
24 SEP 2025
Thursday
25 SEP 2025
Low 73° Low 76° Low 75° Low 74° Low 73°
High 95° High 98° High 96° High 93° High 94°
SAN ANTONIO, TX 78221 weather forecast Day 4 SAN ANTONIO, TX 78221 weather forecast Day 5 SAN ANTONIO, TX 78221 weather forecast Day 6 SAN ANTONIO, TX 78221 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
18% Rain
Partly Cloudy
6% Rain
Partly Cloudy
8% Rain
Mostly Cloudy
30% Rain
Partly Cloudy
16% Rain
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