San Marcos, TX Weather Forecast and Current Conditions (78666)
Feels Like 73°F
Current Weather
Feels Like 73°F
Forecast at a Glance
This Date in Weather History
1881 - The temperature soared to 101 degrees at New York City, 102 degrees at Boston MA, and 104 degrees at Washington D.C.
More on this and other weather history
San Marcos 7 Day Weather Forecast Details
Sunday Sep 7
Day: A slight chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. Northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 70. Northeast wind 0 to 5 mph. Chance of precipitation is 30%.
Monday Sep 8
Day: Mostly sunny, with a high near 90. East northeast wind around 5 mph.
Night: Mostly clear, with a low around 65. East southeast wind 0 to 5 mph.
Tuesday Sep 9
Day: Sunny, with a high near 93. East southeast wind 0 to 5 mph.
Night: Clear, with a low around 65. South southeast wind 0 to 5 mph.
Wednesday Sep 10
Day: Sunny, with a high near 94. South wind 0 to 5 mph.
Night: Clear, with a low around 68. South wind 0 to 5 mph.
Thursday Sep 11
Day: Sunny, with a high near 96. Northeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 70.
Friday Sep 12
Day: Sunny, with a high near 96.
Night: Mostly clear, with a low around 70.
Saturday Sep 13
Day: Sunny, with a high near 95.
Night: Mostly clear, with a low around 70.
Sun & Moon Monthly
Sunrise 7:13 AM
Sunset 7:48 PM
Last Light 8:12 PM
Moonset 6:56 AM
Contiguous United States Extremes
Sat's High Temperature
110 at Death Valley, CA and Stovepipe Wells, CA
Sat's Low Temperature
23 at 16 Miles West Of Redfeather Lakes, CO
Weather Folklore
When the moon is darkest near the horizon, expect rain.
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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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