Right now☁️
Current conditions · San Marcos, TX
84°
Cloudy
Feels like 92°
💨 Wind
17 mph SSE
💧 Humidity
74%
🌫️ Dew pt
75°
👁️ Visibility
10 mi
NWSObserved at San Marcos, San Marcos Municipal Airport
Weather · San Marcos
San Marcos forecast & conditions
Current conditions, the 7-day outlook and hour-by-hour details for San Marcos, straight from the National Weather Service. Watches and warnings show up first.
Loading the local forecast…
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7-Day forecast
Tonight
⛈️
75°
56%
Mostly Cloudy then Showers And Thunderstorms Likely
Thu
⛈️
90°
73°
93%
Showers And Thunderstorms
Fri
⛈️
81°
70°
88%
Showers And Thunderstorms
Sat
⛈️
81°
69°
73%
Showers And Thunderstorms Likely
Sun
⛈️
81°
69°
49%
Chance Showers And Thunderstorms
Mon
⛅
82°
67°
14%
Mostly Sunny
Tue
⛅
83°
65°
8%
Mostly Sunny
Climate · a normal year
What a year in San Marcos feels like
San Marcos has mild winters and hot summers. A typical July afternoon reaches 96°, a January night drops to 40°, and snow is almost unheard of.
65° / 41°Winter
80° / 58°Spring
95° / 73°Summer
82° / 58°Fall
How much snow does San Marcos get?Almost none.Rain & snow →When is the first frost?Around Nov 29, with the last in spring around Feb 28.Frost dates →Is it warmer than it used to be?+1.3° vs. the 20th century.Then & now →
See San Marcos’s full climate →
NOAA U.S. Climate Normals, 1991–2020. A normal is a 30-year average, not a forecast.
The forecast is temporarily unavailable.
Data from the U.S. National Weather Service (weather.gov) — free public data, not modified by TownTapestry. Not a substitute for official warnings; always follow weather.gov and local authorities.