SAN ANTONIO, TX 78246 Weather Forecast & Current Conditions

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SAN ANTONIO, TX
Current Weather

11:51 PM CDT AUG 18, 2026
Few Clouds
86°F
Feels Like: 87°F
Dewpoint: 64°F
Rel. Hum.: 48%
Visibility: 10 miles
Wind: SSE at 14 mph
Pressure: 30.03 inches
Last 72 hours

Local Area Snow Depth

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SAN ANTONIO, TX 78246
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph.
WEDNESDAY
Partly cloudy. Hot with highs around 101. South winds 5 to 10 mph.
WEDNESDAY NIGHT
Partly cloudy. Lows in the mid 70s. South winds 10 to 15 mph.
THURSDAY
Partly cloudy in the morning, then clearing. Hot with highs around 101. South winds 5 to 10 mph.
THURSDAY NIGHT
Mostly clear. Lows in the mid 70s. South winds 10 to 15 mph.
FRIDAY THROUGH SUNDAY
Mostly clear. Hot. Highs around 100. Lows in the upper 70s. Highest heat index readings up to 110.
SUNDAY NIGHT
Clear. Lows in the upper 70s.
MONDAY
Partly cloudy in the morning, then becoming sunny. Hot with highs around 100.
MONDAY NIGHT
Clear. Lows in the upper 70s.
TUESDAY
Partly cloudy in the morning, then clearing. Hot with highs around 100.

Visible Weather Satellite
SAN ANTONIO, TX 78246
Infrared Weather Satellite
SAN ANTONIO, TX 78246
NEXRAD Weather Radar
SAN ANTONIO, TX 78246

SAN ANTONIO, TX 3 hourly weather forecast

weather forecast created  7:00 PM CDT  8/18/2026
Wednesday
19 AUG 2026
SAN ANTONIO, TX 78246 weather forecast Day 1, 0 hours 1 AM 83° 87° Clear 0%

0% Thunder
( 0% severe)
S   12 63% 69°
Low 78° SAN ANTONIO, TX 78246 weather forecast Day 1, 3 hours 4 AM 81° 85° Partly Cloudy S   10 72% 71°
High 101° SAN ANTONIO, TX 78246 weather forecast Day 1, 6 hours 7 AM 79° 82° Clear 0%

0% Thunder
( 1% severe)
SSW   8 77% 71°

Clear



SAN ANTONIO, TX 78246 weather forecast Day 1, 9 hours 10 AM 85° 88° Clear SSW   9 57% 68°
SAN ANTONIO, TX 78246 weather forecast Day 1, 12 hours 1 PM 95° 97° Clear 0%

0% Thunder
( 7% severe)
S   9 36% 64°
SAN ANTONIO, TX 78246 weather forecast Day 1, 15 hours 4 PM 100° 102° Partly Cloudy S   9 29% 62°
SAN ANTONIO, TX 78246 weather forecast Day 1, 18 hours 7 PM 98° 98° Partly Cloudy 0%

0% Thunder
( 3% severe)
SSE   10 27% 58°
SAN ANTONIO, TX 78246 weather forecast Day 1, 21 hours 10 PM 88° 90° Partly Cloudy SSE   15 48% 66°
Thursday
20 AUG 2026
SAN ANTONIO, TX 78246 weather forecast Day 2, 0 hours 1 AM 82° 86° Mostly Cloudy 0%

0% Thunder
( 1% severe)
S   12 69% 71°
Low 78° SAN ANTONIO, TX 78246 weather forecast Day 2, 3 hours 4 AM 80° 84° Mostly Cloudy S   10 79% 73°
High 101° SAN ANTONIO, TX 78246 weather forecast Day 2, 6 hours 7 AM 78° 80° Mostly Cloudy 0%

0% Thunder
( 2% severe)
S   8 88% 74°

Partly Cloudy



SAN ANTONIO, TX 78246 weather forecast Day 2, 9 hours 10 AM 84° 90° Partly Cloudy S   8 70% 73°
SAN ANTONIO, TX 78246 weather forecast Day 2, 12 hours 1 PM 95° 101° Partly Cloudy 0%

0% Thunder
( 9% severe)
S   7 43% 69°
SAN ANTONIO, TX 78246 weather forecast Day 2, 15 hours 4 PM 101° 105° Partly Cloudy SSE   8 31% 65°
SAN ANTONIO, TX 78246 weather forecast Day 2, 18 hours 7 PM 99° 101° Clear 0%

0% Thunder
( 4% severe)
SSE   8 30% 62°
SAN ANTONIO, TX 78246 weather forecast Day 2, 21 hours 10 PM 88° 92° Clear SSE   14 52% 68°

SAN ANTONIO, TX extended weather forecast

Friday
21 AUG 2026
Saturday
22 AUG 2026
Sunday
23 AUG 2026
Monday
24 AUG 2026
Tuesday
25 AUG 2026
Low 78° Low 77° Low 76° Low 77° Low 76°
High 101° High 102° High 102° High 101° High 100°
SAN ANTONIO, TX 78246 weather forecast Day 3 SAN ANTONIO, TX 78246 weather forecast Day 4 SAN ANTONIO, TX 78246 weather forecast Day 5 SAN ANTONIO, TX 78246 weather forecast Day 6 SAN ANTONIO, TX 78246 weather forecast Day 7
Clear
7% Rain
Partly Cloudy
12% Rain
Clear
10% Rain
Clear
6% Rain
Partly Cloudy
7% Rain
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