Weather in San Antonio

14-day forecast · updated today, Thursday, October 29, at 12:58 am (AST)

Now · clear 79 °F

Feels like: 89 °F
Low / high: 78 / 87 °F
Rain: 69% · 0.15 in
Wind: 5 mph SE

→ 29.95 inHg · steady UV 8 · high

Today in San Antonio: light drizzle, 78 °F to 87 °F, with a 69% chance of rain (0.15 in) and a light breeze from the southeast (5 mph). Tomorrow, light drizzle, 77 °F to 85 °F and a 47% chance of rain. The warmest day of the week is Thursday 29, at 87 °F.

Temperatures for the next 14 days

87° 78°
Today
85° 77°
Fri 30
84° 77°
Sat 31
83° 77°
Sun 1
84° 77°
Mon 2
86° 77°
Tue 3
79° 77°
Wed 4
79° 77°
Thu 5
83° 77°
Fri 6
84° 77°
Sat 7
83° 78°
Sun 8
85° 77°
Mon 9
84° 76°
Tue 10
84° 78°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light drizzle	78 / 87 °F	69% · 0.15 in	9 mph ESE	3.7 ft	11:30 am · 10:51 pm	ECMWF
Fri 30	Light drizzle	77 / 85 °F	47% · 0.02 in	13 mph ESE	2.9 ft	12:28 pm · 11:55 pm	ECMWF
Sat 31	Light drizzle	77 / 84 °F	60% · 0.18 in	14 mph E	2.5 ft	1:25 pm	ECMWF
Sun 1	Light showers	77 / 83 °F	61% · 0.28 in	10 mph E	2.5 ft	1:06 am · 2:21 pm	ECMWF
Mon 2	Light showers	77 / 84 °F	71% · 0.27 in	11 mph ESE	3.1 ft	2:21 am · 3:20 pm	ECMWF
Tue 3	Drizzle	77 / 86 °F	74% · 0.21 in	12 mph ESE	2.8 ft	3:43 am · 4:17 pm	ECMWF
Wed 4	Heavy drizzle	77 / 79 °F	92% · 0.44 in	10 mph SSE	2.8 ft	4:59 am · 5:09 pm	ECMWF
Thu 5	Heavy drizzle	77 / 79 °F	77% · 0.43 in	5 mph SSE	2.3 ft	6:00 am · 5:55 pm	ECMWF
Fri 6	Light drizzle	77 / 83 °F	71% · 0.05 in	8 mph SSE	2.7 ft	6:54 am · 6:39 pm	ECMWF
Sat 7	Light drizzle	77 / 84 °F	55% · 0.02 in	13 mph E	3.1 ft	7:44 am · 7:22 pm	ECMWF
Sun 8	Drizzle	78 / 83 °F	59% · 0.21 in	12 mph E	3.1 ft	8:29 am · 8:05 pm	ECMWF
Mon 9	Light drizzle	77 / 85 °F	53% · 0.05 in	13 mph E	2.6 ft	9:09 am · 8:44 pm	ECMWF
Tue 10	Light drizzle	76 / 84 °F	47% · 0.07 in	12 mph ESE	2.7 ft	9:47 am · 9:20 pm	ECMWF
Wed 11	Clear sky	78 / 84 °F	43%	16 mph ESE	3.7 ft	10:25 am · 9:54 pm	ECMWF

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Mainly clear	Clear	Clear	Light drizzle	Light drizzle	Light drizzle	Light drizzle	Mainly clear
Temperature	79°	79°	80°	83°	87°	84°	81°	78°
Chance of rain	0%	0%	0%	0%	22%	67%	51%	7%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.02 in	0.02 in	0.02 in	0.00 in
Wind (mph)	4 SSE	6 SE	6 SE	4 ESE	8 ENE	8 ESE	3 SE	3 SE
Humidity	93%	88%	84%	76%	65%	72%	78%	88%
UV	0	0	0	3	4	2	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain today: take it with some caution.

What 4 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	87°	85°	84°	83°	84°	86°	79°
AIFS	89°	88°	85°	84°	86°	87°	86°
GFS	93°	94°	92°	84°	81°	89°	90°
ICON	90°	89°	88°	88°	92°	93°	91°
Confidence	medium	medium	medium	high	low	medium	low

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.15 in	0.02 in	0.18 in	0.28 in	0.27 in	0.21 in	0.44 in
AIFS	0.09 in	0.11 in	0.33 in	0.43 in	0.24 in	0.20 in	0.33 in
GFS	0.01 in	0	0.03 in	0.30 in	0.54 in	0.07 in	0.22 in
ICON	0.13 in	0.04 in	0.06 in	0.12 in	0	0	0.21 in
Confidence	medium	medium	medium	medium	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	916	1323	1422	1036	1126	1226	1017
AIFS	7	8	8	8	9	6	4
GFS	1115	1315	1818	1016	914	109	119
ICON	1017	1119	1221	1321	1322	1524	917
Confidence	high	high	medium	high	high	medium	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	69%	47%	60%	61%	71%	74%	92%
GFS (GEFS, 31 scenarios)	95%	33%	52%	68%	61%	74%	68%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit warmer and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit above +1.4 °F	Above +50%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +2.3 °F	A bit below −34%	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	Normal	85° / 72°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.0 °F	Normal	85° / 71°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.2 °F	Normal	84° / 71°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +2.3 °F	Normal
December	Above +2.9 °F	Normal
January	Above +3.2 °F	Normal
February	Above +3.2 °F	Normal
March	Above +3.1 °F	A bit above +32%

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

San Antonio climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit San Antonio is from February to March: highs of 85 °F to 86 °F, about 11 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from August to September, peaking in August. In the last 30 years (1996–2025), 19 tropical cyclones passed within 93 mi of San Antonio, about 6 every 10 years; 9 of them with hurricane-force winds (74 mph or more). The most recent: Ernesto, in August 2024.

84° 66°

JanJ
85° 65°

FebF
86° 66°

MarM
87° 68°

AprA
88° 70°

MayM
90° 72°

JunJ
90° 72°

JulJ
91° 72°

AugA
90° 72°

SepS
90° 71°

OctO
87° 69°

NovN
85° 67°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	84°	66°	5.68 in	12	6.3	80°	6.0 ft	–
FebruaryFeb	85°	65°	2.68 in	10	6.6	79°	6.0 ft	–
MarchMar	86°	66°	4.06 in	12	7.4	79°	5.8 ft	–
AprilApr	87°	68°	5.06 in	13	7.6	80°	5.0 ft	–
MayMay	88°	70°	7.71 in	19	7.3	81°	4.4 ft	–
JuneJun	90°	72°	5.56 in	18	7.8	82°	4.0 ft	–
JulyJul	90°	72°	7.70 in	19	8.0	83°	4.4 ft	1
AugustAug	91°	72°	8.19 in	22	7.6	84°	4.2 ft	9
SeptemberSep	90°	72°	6.65 in	24	7.0	84°	4.4 ft	7
OctoberOct	90°	71°	5.57 in	22	6.9	84°	4.6 ft	1
NovemberNov	87°	69°	8.23 in	19	6.1	83°	5.3 ft	–
DecemberDec	85°	67°	6.55 in	13	6.0	81°	6.0 ft	1

Month	Water	Waves	Cyclones
Jan	80°	6.0 ft	–
Feb	79°	6.0 ft	–
Mar	79°	5.8 ft	–
Apr	80°	5.0 ft	–
May	81°	4.4 ft	–
Jun	82°	4.0 ft	–
Jul	83°	4.4 ft	1
Aug	84°	4.2 ft	9
Sep	84°	4.4 ft	7
Oct	84°	4.6 ft	1
Nov	83°	5.3 ft	–
Dec	81°	6.0 ft	1

Days: rainy days in the month. Sun: hours a day.

A normal year brings 73.64 in of rain on about 203 days and about 2,600 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now79 °Ffeels like 89 °F

Tomorrow77 / 85 °F

It's 79 °F now (feels like 89 °F). Today, 78 °F to 87 °F; tomorrow, 77 °F to 85 °F.

Chance of rain

Today 69% 0.15 in
Fri 30 47% 0.02 in
Sat 31 60% 0.18 in
Sun 1 61% 0.28 in
Mon 2 71% 0.27 in
Tue 3 74% 0.21 in
Wed 4 92% 0.44 in

Today the chance of rain reaches 69%, with 0.15 in in total. The next day with likely rain is Friday 30: 47% and 0.02 in.

Recent rain: last 24 hours, 0.11 in; last 3 days, 0.24 in; last 7 days, 0.35 in.

Humidity and dew point

Humidity91%

Dew point76 °F

Humidity is 91% now and the dew point is 76 °F. With a dew point this high, it feels muggy. The temperature is very close to the dew point: fog may form.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now15 migood

Clouds12%

Visibility is good now (15 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak8high

Fri 30: 8 · Sat 31: 7 · Sun 1: 7

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.9030.00 29.88

Steady now (−0.03 inHg in 3 hours). Over the next 48 hours: −0.03 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 20

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Wed 28	Drizzle	77 / 89 °F	0.11 in	12 mph SE
Tue 27	Light drizzle	80 / 90 °F	0.04 in	12 mph SE
Mon 26	Drizzle	81 / 90 °F	0.09 in	12 mph SE
Sun 25	Overcast	81 / 91 °F	0	13 mph SE
Sat 24	Drizzle	81 / 88 °F	0.11 in	9 mph ESE
Fri 23	Overcast	79 / 89 °F	0	12 mph ESE
Thu 22	Light drizzle	77 / 89 °F	0.01 in	8 mph SE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	74 / 88 °F	0.04 in	12 mph ESE
Tue 20	Light drizzle	77 / 87 °F	0.04 in	5 mph SE
Mon 19	Drizzle	77 / 86 °F	0.13 in	9 mph ESE
Sun 18	Light drizzle	76 / 85 °F	0.05 in	6 mph ESE
Sat 17	Drizzle	80 / 85 °F	0.11 in	14 mph E
Fri 16	Light drizzle	79 / 86 °F	0.06 in	16 mph E
Thu 15	Light drizzle	80 / 86 °F	0.06 in	13 mph E
Wed 14	Light drizzle	79 / 87 °F	0.06 in	14 mph E
Tue 13	Light drizzle	80 / 85 °F	0.06 in	9 mph E
Mon 12	Light drizzle	78 / 87 °F	0.11 in	15 mph E
Sun 11	Light drizzle	76 / 86 °F	0.09 in	14 mph ESE
Sat 10	Drizzle	79 / 85 °F	0.30 in	16 mph E
Fri 9	Light drizzle	81 / 87 °F	0.06 in	18 mph E
Thu 8	Light drizzle	79 / 88 °F	0.01 in	17 mph ESE
Wed 7	Light drizzle	78 / 89 °F	0.07 in	13 mph SE
Tue 6	Light drizzle	78 / 87 °F	0.04 in	17 mph E
Mon 5	Overcast	78 / 87 °F	0	16 mph ESE
Sun 4	Light drizzle	78 / 86 °F	0.02 in	10 mph ESE
Sat 3	Light drizzle	78 / 86 °F	0.05 in	13 mph E
Fri 2	Light drizzle	78 / 87 °F	0.05 in	16 mph ESE
Thu 1	Light showers	78 / 89 °F	0.31 in	17 mph ESE
Wed 30	Light drizzle	81 / 87 °F	0.09 in	16 mph E
Tue 29	Clear sky	80 / 87 °F	0	15 mph E

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in San AntonioQuestions

What's the weather like today in San Antonio?

Light drizzle, from 78 °F to 87 °F, with a light breeze from the southeast (5 mph) and a 69% chance of rain.

Will it rain tomorrow in San Antonio?

On Friday 30 the chance of rain is 47% (0.02 in): light drizzle.

How warm will it be this week?

Between a low of 77 °F and a high of 87 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 8 (high). Sunscreen, hat and shade between 12 and 4 pm.

Is the pressure rising or falling?

It's 29.95 inHg and steady: −0.00 inHg over the last 24 hours.

When is the best time to visit San Antonio?

The best time to visit San Antonio is from February to March: highs of 85 °F to 86 °F, about 11 rainy days a month and 7 hours of sunshine a day.

What is the weather like in San Antonio in October?

In October, San Antonio normally sees highs of 90 °F and lows of 71 °F, with about 22 rainy days (5.57 in for the month) and 7 hours of sunshine a day. The sea is around 84 °F. These are 1991–2020 averages.

What are the warmest and wettest months in San Antonio?

The warmest is August, with average highs of 91 °F, and the coldest February, with lows of 65 °F. The wettest is November (8.23 in) and the driest, February.

When is hurricane season in San Antonio?

Hurricane season: from August to September, peaking in August. In the last 30 years (1996–2025), 19 tropical cyclones passed within 93 mi of San Antonio, about 6 every 10 years; 9 of them with hurricane-force winds (74 mph or more). The most recent: Ernesto, in August 2024.

More about San Antonio today

Weather near San Antonio

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 4.9 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 12:58 am (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from