Updated Jun 21, 2015 5:46 pm CST
San Marcos Weather Forecast (TX)
 | 82°F Mostly Cloudy |
| Humidity: | 74% | |
| Wind Speed: | 10mph SSE | |
| Barometer: | 1017 mb | |
| Dewpoint: | 73°F | |
| Heat Index: | 88°F | |
| Wind Chill: | 82°F | |
| Sunrise: | 6:19 am CST | |
| Sunset: | 6:28 pm CST | |
| Moon: | New Moon |
Looking for a business? Check out the San Marcos Business Directory.Long Term Forecast
MONDAY 
High: 89°F
Low: 71°F MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY CLOUDY. PATCHY FOG IN THE MORNING. A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. SOUTH WINDS 10 TO 15 MPH. OVERNIGHT: PARTLY CLOUDY BEFORE MIDNIGHT THEN BECOMING MOSTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHEAST WINDS 5 TO 10 MPH.
TUESDAY 
High: 89°F
Low: 71°F MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY CLOUDY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS 5 TO 10 MPH. OVERNIGHT: PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S.
WEDNESDAY High: 89°F
Low: 71°F PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S. OVERNIGHT: PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S.
THURSDAY High: 89°F
Low: 75°F PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S. OVERNIGHT: PARTLY CLOUDY. HIGHS IN THE LOWER 90S. LOWS IN THE MID 70S.
FRIDAY High: 91°F
Low: 75°F PARTLY CLOUDY. HIGHS IN THE LOWER 90S. LOWS IN THE MID 70S.
SATURDAY High: 90°F
Low: 0°F PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS AROUND 90.
Long Term Forecast
| MONDAY | | High: 89°F Low: 71°F | MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY CLOUDY. PATCHY FOG IN THE MORNING. A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. SOUTH WINDS 10 TO 15 MPH. OVERNIGHT: PARTLY CLOUDY BEFORE MIDNIGHT THEN BECOMING MOSTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHEAST WINDS 5 TO 10 MPH. |
| TUESDAY | | High: 89°F Low: 71°F | MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY CLOUDY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS 5 TO 10 MPH. OVERNIGHT: PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S. |
| WEDNESDAY | | High: 89°F Low: 71°F | PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S. OVERNIGHT: PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S. |
| THURSDAY | | High: 89°F Low: 75°F | PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE LOWER 70S. OVERNIGHT: PARTLY CLOUDY. HIGHS IN THE LOWER 90S. LOWS IN THE MID 70S. |
| FRIDAY | | High: 91°F Low: 75°F | PARTLY CLOUDY. HIGHS IN THE LOWER 90S. LOWS IN THE MID 70S. |
| SATURDAY | | High: 90°F Low: 0°F | PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS AROUND 90. |
