San Marcos, TX Weather Forecast and Current Conditions (78666)
Feels Like 101°F
Current Weather
Feels Like 101°F
Forecast at a Glance
This Date in Weather History
1967 - Hurricane Beulah moved into South Texas, and torrential rains from the hurricane turned the rich agricultural areas of South Texas into a large lake. Hurricane Beulah also spawned a record 115 tornadoes.
More on this and other weather history
San Marcos 7 Day Weather Forecast Details
Saturday Sep 20
Day: Sunny, with a high near 94. Southeast wind around 5 mph.
Night: Partly cloudy, with a low around 71. South southeast wind around 5 mph.
Sunday Sep 21
Day: Sunny, with a high near 94. South wind 0 to 5 mph.
Night: Mostly clear, with a low around 72. South southeast wind 5 to 10 mph.
Monday Sep 22
Day: Mostly sunny, with a high near 95. South southeast wind 5 to 10 mph.
Night: Mostly clear, with a low around 74. South southeast wind 5 to 10 mph.
Tuesday Sep 23
Day: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. South wind around 5 mph. Chance of precipitation is 20%.
Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 5 mph. Chance of precipitation is 40%.
Wednesday Sep 24
Day: A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 93. North northwest wind around 5 mph. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 40%.
Thursday Sep 25
Day: A slight chance of rain showers. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Friday Sep 26
Day: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
Night: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 67.
Sun & Moon Monthly
Sunrise 7:20 AM
Sunset 7:32 PM
Last Light 7:56 PM
Moonset 7:05 PM
Contiguous United States Extremes
Fri's High Temperature
104 at 4 Miles South Of Tolleson, AZ
Sat's Low Temperature
25 at 14 Miles West Southwest Of Mackay, ID and Saranac Lake, NY
Weather Folklore
If the rooster crows on going to bed, you may rise with a watery head.
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About San Marcos, Texas
San Marcos () is a city and the county seat of Hays County, Texas, United States. The city is a part of the Greater Austin Metropolitan Area. San Marcos's limits extend into Caldwell and Guadalupe counties, as well. San Marcos is on the Interstate 35 corridor between Austin and San Antonio. Its population was 44,894 at the 2010 census and 67,553 at the 2020 census. Founded on the banks of the San Marcos River, the area is thought to be among the oldest continuously inhabited sites in the Americas. San Marcos is home to Texas State University and the Meadows Center for Water and the Environment.
In 2010, San Marcos was listed in Business Week's fourth annual survey of the "Best Places to Raise your Kids". In 2013 and 2014, the United States Census Bureau named it the fastest-growing city in the United States. In December 2013, it was named number nine on Business Insider's list of the "10 Most Exciting Small Cities In America".
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