Current Conditions
67°F
Feels like 66°F
Clear
Clear Sky
As of Oct 8, 2026, 5:38 AM · Last checked Oct 8, 2026, 5:38 AM
Times shown in America/Chicago. Some values may come from forecast models.
4 mph
WNW
68%
6.2 mi
29.94 inHg
San Antonio reports clear as of Oct 8, 2026, 5:38 AM with temperatures near 67°F (19°C). Humidity is 68%, and winds are around 4 mph.
Check the forecast times and official local alerts before planning commuting, outdoor activities, or travel in San Antonio.
San Antonio has a humid subtropical climate with long, hot summers and short, mild winters. At San Antonio International Airport, the 1991-2020 reference averages range from a daily high of 63°F (17°C) in Jan to 96°F (36°C) in Aug. Monthly precipitation averages sum to 32.4 inches (822 mm) per year.
Spring brings the year's strongest storm systems, with large hail and heavy rain, as heat builds quickly by May. Summer settles into weeks of 95-100°F sunshine broken by occasional tropical moisture. September and October form a second wet season and the biggest flash-flood window, when tropical remnants can stall over the Hill Country. Winters are mild, though occasional hard freezes and ice (like February 2021) can shut the city down.
The September 1921 flood, fueled by hurricane remnants that dumped over a foot of rain near Olmos Creek, put parts of downtown under 10 feet of water and killed 51 people, leading to Olmos Dam and, ultimately, the famous River Walk.
Local Planning Guide
The May-June and September-October heavy-rain peaks, midsummer extreme heat, and the occasional hard winter freeze are the windows that need extra forecast attention in San Antonio.
Sitting along the Balcones Escarpment in Texas' Flash Flood Alley, San Antonio can turn ordinary-looking radar echoes into life-threatening flash floods, so rainfall rates and flood alerts deserve special weight here.
Climate reference averages (1991-2020). Average daily high, average daily low, and monthly precipitation.
| Month | Avg High | Avg Low | Precipitation |
|---|---|---|---|
| Jan | 63.3°F | 41°F | 2.0 in |
| Feb | 67.5°F | 45.1°F | 1.7 in |
| Mar | 73.8°F | 51.8°F | 2.3 in |
| Apr | 80.3°F | 58.4°F | 2.4 in |
| May | 86.6°F | 66.4°F | 4.4 in |
| Jun | 92.4°F | 72.7°F | 3.3 in |
| Jul | 94.9°F | 74.7°F | 2.4 in |
| Aug | 96°F | 74.9°F | 2.1 in |
| Sep | 90.1°F | 69.6°F | 3.9 in |
| Oct | 82.2°F | 60.4°F | 3.8 in |
| Nov | 71.7°F | 49.8°F | 2.1 in |
| Dec | 64.7°F | 42.4°F | 2.0 in |
Climate data and sources. Verified against NOAA NCEI: SAN ANTONIO INTL AP, TX US (PDF) (USW00012921), 1991-2020. Values are rounded for display. Raw data (JSON). Climate averages are not a forecast and do not describe every neighborhood.
These guides, tools, and feature pages help you interpret the conditions on this page and plan around what happens next.
Seasonal Hub
A seasonal hub for tornadoes, hail, damaging winds, and storm-prep reading.
Tool
Calculate how hot it really feels when humidity is part of the story.
Guide
Learn the basics of radar interpretation so you can tell where storms are headed and how intense they may become.
Glossary
Balls or irregular lumps of ice produced in severe thunderstorms.
Explore local pages built around radar, alerts, air quality, and app-download search intent for this city.
Local Weather App
Compare what a weather app should handle in San Antonio: local forecasts, radar, alerts, air quality, and planning tools from WeatherAI.
Local Weather Radar
How to read San Antonio weather radar: storm motion, precipitation type, and what to check before rain reaches your neighborhood.
Local Storm Tracker
Track storms near San Antonio with radar loops, storm movement, local alerts, saved places, and WeatherAI storm tracking features for iPhone, iPad, Mac, and Vision Pro.
Local Alerts
Get local weather alert guidance for San Antonio, including severe weather, wind, rain, heat, and daily planning notifications in WeatherAI.
Air Quality
Plan around San Antonio air quality with weather context, outdoor planning guidance, and WeatherAI air quality monitoring for iPhone, iPad, Mac, and Vision Pro.