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WeatherLive › Texas › San Marcos

San Marcos, TX Weather (78666)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSan Marcos · 11:14 AM CDT
27° | 16°
23°C
Feels like 21°
Mostly cloudy
WindSE 12 mph · Gusts 15 mph
Precip16% · –
Humidity58% · Dew point 15°
UV index5 Moderate
Air Quality48 Good
Pressure30.27 inHg
Visibility6 mi
Sunrise / Sunset7:40 AM · 6:51 PM · 11h 11m

Weather map — San Marcos

Full radar →
Now
23°
14%
12 mph
12:00
25°
12%
12 mph
13:00
26°
11%
9 mph
14:00
26°
10%
11 mph
15:00
27°
10%
11 mph
16:00
27°
10%
8 mph
17:00
26°
10%
11 mph
18:00
25°
11%
9 mph
19:00
23°
12%
7 mph
20:00
21°
12%
9 mph
21:00
20°
13%
8 mph
22:00
21°
13%
7 mph
23:00
19°
15%
8 mph
00:00
18°
16%
7 mph
01:00
19°
17%
4 mph
02:00
16°
20%
4 mph
03:00
15°
22%
2 mph
04:00
16°
18%
2 mph
05:00
14°
19%
3 mph
06:00
14°
13%
4 mph
07:00
14°
15%
3 mph
08:00
13°
18%
4 mph
09:00
17°
5%
4 mph
10:00
21°
4%
5 mph

Today · Sun 10/25

High 27°
16% / –

Mostly cloudy. Winds SE at 12 mph.

Tonight · Sun 10/25

Low 13°
13% / –

Mostly cloudy. Winds E at 8 mph.

Tomorrow · Mon 10/26

27° | 13°
13% / –

Mostly cloudy. Winds SE at 9 mph.

7-day trend

San Marcos · temperature + precipitation

10-day forecast

Updated 11:14 AM

Details & indices

Wind
12 mph SE
Gusts 15 mph
Humidity
58%
Dew point 15°
Pressure
30.27 inHg
Rising
UV index
5 — Moderate
High today
Air Quality
Good
AQI 48 · US EPA
Allergy
None detected
—
Visibility
6 mi
Clear view
Allergy — San Marcos

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
None

Sun & moon

Sunrise7:40 AM
Sunset6:51 PM
Length of day11h 11m
Moonrise6:22 PM
Moonset7:05 AM
Moon phase🌕 Full Moon · 100%
Next full moonOct 25 Hunter's Moon
Latitude29.8833°N
Longitude-97.9414°E

Water temps nearby

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No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in Texas
Houston
Mostly cloudy
24°
San Antonio
Mostly cloudy
21°
Dallas
Mostly cloudy
21°
Fort Worth
Mostly cloudy
22°
Austin
Mostly cloudy
22°
El Paso
Partly cloudy
18°
NBM + global weather models
Updated: 11:14 AM
San Marcos, TX · Elev 617 ft · 29.88°N, 97.94°W · Texas · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 11:14 AM