Weather in San Marcos, Texas, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for San Marcos
Today |
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Temperature: 97°F Wind Speed: 0 to 5 mph Wind Direction: WNW Forecast: A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 97, with temperatures falling to around 92 in the afternoon. Heat index values as high as 105. West northwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts between a half and three quarters of an inch possible. |
Tonight |
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Temperature: 75°F Wind Speed: 0 to 5 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 75. Southwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts between a half and three quarters of an inch possible. |
Sunday |
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Temperature: 98°F Wind Speed: 0 to 5 mph Wind Direction: ESE Forecast: Sunny, with a high near 98. Heat index values as high as 105. East southeast wind 0 to 5 mph. |
Sunday Night |
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Temperature: 76°F Wind Speed: 5 mph Wind Direction: SE Forecast: Partly cloudy, with a low around 76. Heat index values as high as 103. Southeast wind around 5 mph. |
Monday |
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Temperature: 95°F Wind Speed: 5 mph Wind Direction: SE Forecast: A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 95. Southeast wind around 5 mph. Chance of precipitation is 30%. |
Monday Night |
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Temperature: 75°F Wind Speed: 5 to 10 mph Wind Direction: SE Forecast: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. |
Tuesday |
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Temperature: 95°F Wind Speed: 5 mph Wind Direction: SE Forecast: Sunny, with a high near 95. Southeast wind around 5 mph. |
Tuesday Night |
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Temperature: 74°F Wind Speed: 5 mph Wind Direction: SSE Forecast: Mostly clear, with a low around 74. South southeast wind around 5 mph. |
Wednesday |
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Temperature: 95°F Wind Speed: 5 mph Wind Direction: S Forecast: Sunny, with a high near 95. South wind around 5 mph. |
Wednesday Night |
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Temperature: 74°F Wind Speed: 5 mph Wind Direction: SSE Forecast: Mostly clear, with a low around 74. |
Thursday |
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Temperature: 95°F Wind Speed: 5 mph Wind Direction: S Forecast: Sunny, with a high near 95. |
Thursday Night |
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Temperature: 75°F Wind Speed: 5 mph Wind Direction: S Forecast: Mostly clear, with a low around 75. |
Friday |
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Temperature: 96°F Wind Speed: 5 to 10 mph Wind Direction: S Forecast: Sunny, with a high near 96. |
Friday Night |
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Temperature: 75°F Wind Speed: 5 to 10 mph Wind Direction: SSE Forecast: Mostly clear, with a low around 75. |