Marine Weather Net

San Antonio, TX Weather Forecast




San Antonio, Texas

 Lat: 29.46N, Lon: 98.51W

Current Conditions Updated: 859 AM CDT TUE APR 21 2026

Light Rain
Temp: 64°F
  • Humidity:
  • 93%
  • Winds:
  • 8 MPH SE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.09 in.
  • Dewpoint:
  • 62°F
  • Heat index:
  • 64°F

  • Sunrise:
  • 7:00 AM CDT
  • Sunset:
  • 8:03 PM CDT
  • Moonrise:
  • 10:20 AM CDT
  • Moonset:
  • 12:14 AM CDT

TODAY

CHANCE OF T-STORM
Hi: 71°F
Lo: 65°F
Precip: 70%

WEDNESDAY

CHANCE OF SHOWERS
Hi: 81°F
Lo: 69°F
Precip: 50%

THURSDAY

MOSTLY CLOUDY
Hi: 85°F
Lo: 69°F

FRIDAY

PARTLY CLOUDY
Hi: 85°F
Lo: 67°F
Weather Forecast In Detail:
Forecast Issued: 409 AM CDT Tue Apr 21 2026

Today...Cloudy with showers likely. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Not as cool with highs in the lower 70s. East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.
Tonight...Cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the mid 60s. East winds 5 to 10 mph. Chance of rain 40 percent.
Wednesday...Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Not as cool with highs in the lower 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday Night...Mostly cloudy. Lows in the upper 60s. Southeast winds 5 to 10 mph.
Thursday...Mostly cloudy. Highs in the mid 80s. South winds 10 to 15 mph.
Thursday Night...Mostly cloudy. Lows in the upper 60s.
Friday...Cloudy in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s.
Friday Night...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy after midnight. Lows in the upper 60s.
Saturday...Mostly cloudy. Highs in the upper 80s.
Saturday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70.
Sunday...Cloudy. Highs around 90.
Sunday Night...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms. Lows around 70.
Monday...Mostly cloudy in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s.
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