National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

61°F

16°C

Humidity 93%
Wind Speed NE 9 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 8 Nov 6:56 pm CST
Extended Forecast for

2 Miles SSW Hays TX

  • Tonight

    Tonight: Showers likely, mainly after 3am. Mostly cloudy, with a low around 55. North northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 55 °F

    Showers
    Likely

  • Monday

    Monday: Showers, mainly before 3pm. High near 64. North northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon. Partly sunny, with a high near 71. Calm wind.

    High: 71 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 77. Calm wind becoming west around 5 mph.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Light west northwest wind becoming north northwest 5 to 10 mph after midnight.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 74. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47. Calm wind becoming north northwest around 5 mph.

    Low: 47 °F

    Clear

Detailed Forecast

Tonight
Showers likely, mainly after 3am. Mostly cloudy, with a low around 55. North northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, mainly before 3pm. High near 64. North northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 55. Calm wind.
Tuesday
A 20 percent chance of showers before noon. Partly sunny, with a high near 71. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 56. Calm wind.
Veterans Day
Partly sunny, with a high near 77. Calm wind becoming west around 5 mph.
Wednesday Night
Partly cloudy, with a low around 54. Light west northwest wind becoming north northwest 5 to 10 mph after midnight.
Thursday
Sunny, with a high near 74. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 47. Calm wind becoming north northwest around 5 mph.
Friday
Sunny, with a high near 70.
Friday Night
Clear, with a low around 45.
Saturday
Sunny, with a high near 70.
Saturday Night
Mostly clear, with a low around 49.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Hays TX
 30.09°N 97.89°W (Elev. 801 ft)
Last Update:
6:52 pm CST Nov 8, 2026
Forecast Valid:
7pm CST Nov 8, 2026-6pm CST Nov 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation