Bexar County weather, town by town
30 places in Bexar County, Texas, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Bexar County Weather Facts
Bexar County has 30 places on myweatherrock (21 cities, 6 census-designated places, 3 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 113°F at San Antonio Stinson Muni Ap on August 28, 2011. The coldest night is -4°F at Boerne on January 31, 1949. The wettest day brought 14.33 inches of rain at San Antonio Incarnate Word on October 18, 1998. The biggest single-day snow measured 13.19 inches at San Antonio Intl Ap on January 12, 1985. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is San Antonio, about 499 square miles.
About Bexar County weather
The map on the Now tab shows every Bexar County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 30 Bexar County towns with station normals, the warmest month is August, when the day usually reaches 98°F, and the coldest is December, when the night usually falls to 41°F. May is the wettest, with rain on about 8 days. August afternoons run from about 94°F in Cross Mountain to 100°F in Lackland AFB. December nights run from about 38°F in Cross Mountain to 43°F in Castle Hills.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Bexar County weather records
Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Common questions about Bexar County weather
- What is the hottest temperature recorded at a Bexar County station?
- 113°F at San Antonio Stinson Muni Ap on August 28, 2011, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Bexar County station?
- -4°F at Boerne on January 31, 1949.
- What is the most rain a Bexar County station has measured in one day?
- 14.33 inches at San Antonio Incarnate Word on October 18, 1998.
- What is the biggest one-day snowfall at a Bexar County station?
- 13.19 inches at San Antonio Intl Ap on January 12, 1985.
- How many Bexar County towns have a weather page here?
- 30: 21 cities, 6 census-designated places, 3 towns. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Bexar County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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