SAN ANTONIO, TX 78246 Weather Forecast & Current Conditions

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SAN ANTONIO, TX
Current Weather

3:51 AM CDT AUG 18, 2025
Clear
81°F
Feels Like: 86°F
Dewpoint: 73°F
Rel. Hum.: 77%
Visibility: 10 miles
Wind: S at 5 mph
Pressure: 29.97 inches
Last 72 hours

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SAN ANTONIO, TX 78246
Weather Forecast

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Snow Depth pages
TODAY
Partly cloudy. A slight chance of showers and thunderstorms this afternoon. Highs in the upper 90s. Southwest winds around 5 mph, becoming southeast this afternoon. Chance of rain 20 percent. Highest heat index readings up to 105.
TONIGHT
Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Southeast winds 5 to 10 mph, becoming south after midnight. Chance of rain 20 percent.
TUESDAY
Mostly sunny in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Northwest winds around 5 mph, becoming east in the afternoon. Chance of rain 40 percent.
TUESDAY NIGHT
Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 70s. East winds 5 to 10 mph, becoming northwest after midnight. Chance of rain 30 percent.
WEDNESDAY
Mostly sunny with a slight chance of showers in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 90s. North winds around 5 mph, becoming east in the afternoon. Chance of rain 50 percent.
WEDNESDAY NIGHT
Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 70s. Chance of rain 30 percent.
THURSDAY
Partly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 70 percent.
THURSDAY NIGHT AND FRIDAY
Partly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 50 percent.
FRIDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 70s. Chance of rain 40 percent.
SATURDAY
Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.
SATURDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 70s.
SUNDAY
Mostly sunny in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.

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  8/17/2025
Monday
18 AUG 2025
SAN ANTONIO, TX 78246 weather forecast Day 1, 0 hours 1 AM 84° 89° Partly Cloudy 2%

0% Thunder
( 1% severe)
SSE   8 65% 71°
Low 77° SAN ANTONIO, TX 78246 weather forecast Day 1, 3 hours 4 AM 80° 84° Partly Cloudy S   5 79% 73°
High 100° SAN ANTONIO, TX 78246 weather forecast Day 1, 6 hours 7 AM 78° 80° Mostly Cloudy 2%

0% Thunder
( 3% severe)
SW   3 85% 73°

Partly Cloudy



SAN ANTONIO, TX 78246 weather forecast Day 1, 9 hours 10 AM 84° 90° Partly Cloudy SSW   2 67% 72°
SAN ANTONIO, TX 78246 weather forecast Day 1, 12 hours 1 PM 94° 98° Partly Cloudy 8%

0% Thunder
( 20% severe)
SSE   5 41% 67°
SAN ANTONIO, TX 78246 weather forecast Day 1, 15 hours 4 PM 98° 101° Partly Cloudy ESE   6 33% 64°
SAN ANTONIO, TX 78246 weather forecast Day 1, 18 hours 7 PM 95° 96° Partly Cloudy 7%

0% Thunder
( 19% severe)
E   8 35% 63°
SAN ANTONIO, TX 78246 weather forecast Day 1, 21 hours 10 PM 87° 90° Partly Cloudy E   6 52% 67°
Tuesday
19 AUG 2025
SAN ANTONIO, TX 78246 weather forecast Day 2, 0 hours 1 AM 83° 86° Partly Cloudy 4%

0% Thunder
( 6% severe)
SSE   5 61% 68°
Low 78° SAN ANTONIO, TX 78246 weather forecast Day 2, 3 hours 4 AM 80° 83° Partly Cloudy S   2 72% 70°
High 99° SAN ANTONIO, TX 78246 weather forecast Day 2, 6 hours 7 AM 78° 80° Clear 5%

0% Thunder
( 7% severe)
W   2 76% 70°

Increasing Clouds

Chance of Rain

SAN ANTONIO, TX 78246 weather forecast Day 2, 9 hours 10 AM 86° 91° Partly Cloudy W   2 59% 70°
SAN ANTONIO, TX 78246 weather forecast Day 2, 12 hours 1 PM 94° 98° Partly Cloudy 38%
RAIN
.1–.25 in
0% Thunder
( 34% severe)
E   3 41% 67°
SAN ANTONIO, TX 78246 weather forecast Day 2, 15 hours 4 PM 95° 98° Mostly Cloudy E   7 39% 66°
SAN ANTONIO, TX 78246 weather forecast Day 2, 18 hours 7 PM 92° 95° Partly Cloudy 21%
RAIN
.01–.1 in
0% Thunder
( 21% severe)
E   8 43% 66°
SAN ANTONIO, TX 78246 weather forecast Day 2, 21 hours 10 PM 86° 90° Mostly Cloudy E   5 57% 69°

SAN ANTONIO, TX extended weather forecast

Wednesday
20 AUG 2025
Thursday
21 AUG 2025
Friday
22 AUG 2025
Saturday
23 AUG 2025
Sunday
24 AUG 2025
Low 75° Low 75° Low 73° Low 75° Low 76°
High 100° High 93° High 93° High 96° High 95°
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
Partly Cloudy
22% Rain
Overcast
46% Rain
Mostly Cloudy
51% Rain
Partly Cloudy
27% Rain
Mostly Cloudy
29% Rain
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