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
2:53 AM CDT APR 4, 2026
Overcast Light Rain 73°F
Feels Like:	73°F
Dewpoint:	68°F
Rel. Hum.:	84%
Visibility:	10 miles
Wind:	ESE at 8 mph
Pressure:
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

REST OF TONIGHT
Cloudy with a chance of showers and thunderstorms. Near steady temperature in the lower 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.

SATURDAY
A chance of thunderstorms. Showers, cooler with highs in the upper 70s. Temperature falling into the upper 60s in the afternoon. South winds 5 to 10 mph, increasing to north 15 to 20 mph with gusts up to 30 mph in the afternoon. Chance of rain 90 percent.

SATURDAY NIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Much cooler. Less humid with lows in the lower 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.

SUNDAY
Cloudy with a 40 percent chance of showers. Cooler with highs in the mid 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

SUNDAY NIGHT
Cloudy. A chance of showers, mainly in the evening. Lows in the lower 50s. Northeast winds 10 to 15 mph. Chance of rain 30 percent.

MONDAY AND MONDAY NIGHT
Mostly cloudy. Highs in the upper 60s. Lows in the lower 50s.

TUESDAY
Cloudy. Highs in the upper 60s.

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

WEDNESDAY NIGHT
Mostly cloudy. Lows in the upper 50s.

THURSDAY AND THURSDAY NIGHT
Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the lower 80s. Lows in the mid 60s.

FRIDAY
Cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.

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 4/ 3/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
4 APR 2026

12 AM

74°

74°

Mostly Cloudy

44%
RAIN
.25–.5 in

0% Thunder
( 19% severe)

SE 12

82%

68°

Low 71°

3 AM

73°

73°

Mostly Cloudy

SE 9

84%

68°

High 79°

6 AM

72°

72°

Mostly Cloudy

54%
RAIN
.5–1 in

0% Thunder
( 20% severe)

SE 7

87%

68°

Mostly Cloudy

Rain Likely

9 AM

73°

73°

Mostly Cloudy

SSE 7

84%

68°

12 PM

75°

75°

Mostly Cloudy

81%
RAIN
***

0% Thunder
( 37% severe)

SSW 6

74%

66°

3 PM

71°

71°

Overcast

NNE 12

71%

61°

6 PM

67°

67°

Mostly Cloudy

31%
RAIN
.1–.25 in

0% Thunder
( 18% severe)

NNE 17

70%

57°

9 PM

64°

63°

Mostly Cloudy

NNE 15

70%

54°

Sunday
5 APR 2026

12 AM

62°

60°

Mostly Cloudy

31%
RAIN
***

0% Thunder
( 15% severe)

NNE 14

70%

52°

Low 56°

3 AM

61°

59°

Mostly Cloudy

NNE 15

65%

49°

High 67°

6 AM

58°

55°

Mostly Cloudy

28%
RAIN
***

0% Thunder
( 7% severe)

NNE 14

67%

47°

Mostly Cloudy

Chance of Rain

9 AM

58°

55°

Mostly Cloudy

NNE 15

64%

46°

12 PM

62°

60°

Mostly Cloudy

28%
RAIN
***

0% Thunder
( 2% severe)

NNE 15

54%

45°

3 PM

65°

65°

Mostly Cloudy

NNE 14

46%

44°

6 PM

65°

65°

Mostly Cloudy

19%
RAIN
.1–.25 in

0% Thunder
( 4% severe)

NNE 12

48%

45°

9 PM

61°

60°

Mostly Cloudy

NNE 8

56%

45°


SAN ANTONIO/STIN, TX extended weather forecast
Monday 6 APR 2026	Tuesday 7 APR 2026	Wednesday 8 APR 2026	Thursday 9 APR 2026	Friday 10 APR 2026
Low 53°	Low 55°	Low 56°	Low 59°	Low 66°
High 74°	High 74°	High 75°	High 85°	High 85°

Overcast 34% Rain	Overcast 27% Rain	Overcast 30% Rain	Overcast 16% Rain	Overcast 29% Rain

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