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San Antonio, TX 78278 Weather
Current conditions
Observed at San Antonio, San Antonio International Airport · 24 min ago
Forecast
10-day-
Tonight
Mostly clear, with a low around 63. Northeast wind 0 to 5 mph.
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Thursday
Sunny, with a high near 85. Northeast wind around 5 mph.
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Thursday Night
Mostly clear, with a low around 60. East wind 0 to 5 mph.
National Weather Service forecast updated 1 hr ago.
Hourly
Hourly forecast- Now75°
- 9 PM71°
- 10 PM70°
- 11 PM68°
- Thu12 AM66°
- 1 AM65°
- 2 AM64°
- 3 AM64°
- 4 AM63°
- 5 AM63°
- 6 AM63°
- 7 AM63°
- 8 AM63°
- 9 AM66°
- 10 AM71°
- 11 AM75°
- 12 PM78°
- 1 PM82°
- 2 PM83°
- 3 PM84°
- 4 PM85°
- 5 PM84°
- 6 PM83°
- 7 PM80°
10-day forecast
Details- TonightOct 21Mostly Clear63°
- ThuOct 22Sunny60°85°
- FriOct 23Sunny63°84°
- SatOct 24Mostly Sunny65°84°
- SunOct 25Mostly Cloudy62°81°
- MonOct 26Partly Sunny15%63°80°
- TueOct 27Chance Showers And Thunderstorms25%61°79°
- WedOct 28Mostly Sunny12%80°
- ThuOct 29Partly cloudy63°84°
- FriOct 30Rain0.41 in67°80°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near San Antonio
More weather news-
Was San Antonio fooled by 'false fall'? Temps could flirt with 90.Enjoy the fall weather while you can, San Antonio. Tuesday’s mild temperatures could even be considered part of a “false fall” in South Texas, given how close the temperatures will flirt once again with 90 degrees for…
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Storms, flooding possible in parts of Texas. Here's whereThe National Weather Service Amarillo says a slight risk for excessive rainfall and flooding is possible on Friday and Saturday, October 23-24, 2026. If you feel like you need a break from all the ups and downs of Texas…
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Consistently warm and quiet now through the weekendCOOLER START THAN YESTERDAY Temperatures this morning are starting in the mid 50s, so it will feel cooler than what you remember from yesterday. We’ll spend much of the late morning hours with very comfortable…
- San Antonio Weather Swings From Crisp Mornings To Summer Heat
The National Weather Service's Austin/San Antonio office says Tuesday will be sunny and warmer, with a high near 84, and the rest of the workweek keeps climbing. That marks a modest update from Hoodline's earlier…
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Summer recap: The Big Country’s summer of relentless triple-digit heatBIG COUNTRY, Texas (KTAB/KRBC) – The summer of 2026 is one the Big Country won't soon forget, thanks to relentless heat that baked the region, especially from August through mid-September. Abilene recorded its first…
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Cool mornings, warm afternoonsThe latest in news, weather and sports for San Antonio and Central and South Texas. Justin Horne, KSAT Weather Authority Meteorologist Air Force identifies service member who died after fall during UTSA pregame ceremony…
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NWS: Here's when Central Texas will finally cool down for the yearA cold front hit Texas last weekend, bringing a boon for those San Antonio temperatures that make fall feel more like summer part two. But when can residents in South Central Texas expect for the weather to actually…
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Old Farmer's Almanac predicts warm Thanksgiving, rain chances for South TexasIf you were hoping to pull out the cute winter boots and Fall-inspired sweaters this Thanksgiving holiday, you may be disappointed. The Old Farmer's Almanac has released its long-range forecast for Thanksgiving 2026…
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Old Farmer's Almanac's Thanksgiving 2026 weather forecastScenic views of the Riverwalk on a rainy day in San Antonio If you were hoping to pull out the cute winter boots and Fall-inspired sweaters this Thanksgiving holiday, you may be disappointed. The Old Farmer's Almanac…
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After cool Sunday, big changes expected for South Texas weather. Here's what's next.If you're a fall-weather fan, then Sunday will be the absolute perfect day to get outside. A chilly, crisp morning will be followed by a cool, sunny afternoon with very little wind throughout the region. After making it…
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- WedModerate
- ThuModerate
- FriModerate
San Antonio, TX reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlySan Antonio Area, records since 1885. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- New Braunfels 44 km
- Schertz 23 km
- Cibolo 27 km
- Seguin 50 km
- Converse 17 km
- Canyon Lake 52 km
- Universal City 21 km
- Live Oak 19 km
- Boerne 48 km
- Timberwood Park 29 km
- Pleasanton 52 km
- Selma 22 km
Forecasters' discussion
From the National Weather Service office in EWX, issued 1 hr ago
Key Messages
Updated at 616 PM CDT Wed Oct 21 2026
- Warm and rain-free conditions to persist into the weekend
- Modest Rain chances (15-30%) to return early next week
Short Term
(Tonight through Thursday night) Issued at 1215 PM CDT Wed Oct 21 2026
A mid level ridge axis that has been responsible for our continued dry and warm weather will not move much in the coming days. This ridge will eventually set up a strong Omega block pattern across the CONUS. This will continue to keep our area under mostly sunny to partly sunny skies with highs in the low to mid 80s and lows in the low to mid 50s each day in the short term. Chances of precipitation look slim to non nonexistent with the one exception being over the Rio Grande Plains. A decent amount of moisture may advance far enough northward into our area that may produce also a sprinkle or shower over the Rio Grande. Otherwise expect dry weather to persist areawide.
Long Term
(Friday through next Wednesday) Issued at 1215 PM CDT Wed Oct 21 2026
The omega block pattern remains through the end of the week before eventually showing signs of breaking down as a decent trough tries to dislodge it over the southwestern CONUS. As this happens we should have a few more days of warm and dry weather (highs in the 80s lows in the 50s) before we get into low chances for precip as moisture and humidity return on the back of southeasterly flow. This should allow temperatures to cool slightly as this trough begins to eject northeastward into the panhandles and thus possibly bringing with it a front southward into our area. Long range models are still having quite a difficult time handling this feature and the ensuing pattern change. For now have kept pops low, in the 15-30% range, starting Sunday and continuing into early next week. Continue to stay tuned as details become more refined as we get closer to the weekend.
Aviation
(00Z TAFS) Issued at 616 PM CDT Wed Oct 21 2026
Light east to southeasterly wind prevails in the west overnight with calm wind over the eastern half of the forecast area. The pattern of light wind continues into Thursday with speeds generally under 10 knots from the southeast along the Rio Grande and from the east to northeast at I-35 terminals. VFR conditions remain through the period except for a brief period of MVFR stratus near sunrise at KDRT.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.