Weather for San Antonio, Texas
Current Weather
Five Day Weather Forecast
Sun
H: 81°F
L: 71°F
Mon
H: 90°F
L: 71°F
Tue
H: 86°F
L: 69°F
Wed
H: 83°F
L: 68°F
Thu
H: 91°F
L: 67°F
Air Quality
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 69 μg/m3
Astronomical
Sun Transit: 1:34 PM
Sunset: 7:59 PM
Daylight: 12 hrs 48 mins
Moon Transit: 9:43 AM
Moonset: 3:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:26 PM - 10:56 PM9:13 AM - 11:43 AM
Minor Periods
2:48 PM - 4:18 PM3:44 AM - 5:14 AM
Action Rating: 3 out of 5
Flood Watch issued April 12 at 10:11AM CDT until April 13 at 7:00AM CDT by NWS Austin/San Antonio TX
Effective: Sun April 12, 2026, 10:11 AM
Expires: Mon April 13, 2026, 7:00 AM
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of the I-35 Corridor and Coastal Plains, including the following counties, Bastrop, Caldwell, Comal, De Witt, Fayette, Gonzales, Guadalupe, Hays, Lavaca, Lee, Travis and Williamson. * WHEN...Through 7am Monday morning. * IMPACTS...There is a potential for LIFE-THREATENING flooding somewhere in the watch area. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Rainfall amounts of 2 to 4 inches with isolated amounts of 5 to 10 inches possible in a short amount of time. - http://www.weather.gov/safety/flood
Ensure you have a way to receive warnings and check the notification settings on your phone to ensure Wireless Emergency Alerts are enabled. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 69.52 μg/m3
Astronomical
Sun Transit: 1:34 PM
Sunset: 7:59 PM
Daylight: 12 hrs 48 mins
Moon Transit: 9:43 AM
Moonset: 3:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:26 PM - 10:56 PM9:13 AM - 11:43 AM
Minor Periods
2:48 PM - 4:18 PM3:44 AM - 5:14 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.72 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 66.84 μg/m3
Astronomical
Sun Transit: 1:34 PM
Sunset: 7:59 PM
Daylight: 12 hrs 50 mins
Moon Transit: 10:29 AM
Moonset: 4:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%
Best Times for Fishing or Hunting
Major Periods
9:11 PM - 11:41 PM9:59 AM - 12:29 AM
Minor Periods
3:49 PM - 5:19 PM4:17 AM - 5:47 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 71.92 μg/m3
Astronomical
Sun Transit: 1:34 PM
Sunset: 8:00 PM
Daylight: 12 hrs 51 mins
Moon Transit: 11:14 AM
Moonset: 5:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:44 AM - 1:14 PM
Minor Periods
4:50 PM - 6:20 PM4:47 AM - 6:17 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 74.36 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:01 PM
Daylight: 12 hrs 53 mins
Moon Transit: 10:33 AM
Moonset: 6:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
10:03 AM - 12:33 AM10:03 AM - 12:33 AM
Minor Periods
5:53 PM - 7:23 PM5:18 AM - 6:48 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.29 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 62.23 μg/m3
Astronomical
Sun Transit: 1:33 PM
Sunset: 8:01 PM
Daylight: 12 hrs 55 mins
Moon Transit: 12:50 AM
Moonset: 7:29 PM
Moon Phase: New
Moon Illumination: 0.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:20 AM - 2:50 PM
Minor Periods
6:59 PM - 8:29 PM5:51 AM - 7:21 AM
Action Rating: 5 out of 5