Heavy Rainfall for Hawaii; Severe Weather Potential Increasing Across the South

Snowfall downwind of the Great Lakes will slowly diminish through the day. A system tracking across California is forecast to intensify across the Southern Plains through Thursday. Severe weather and heavy rainfall are possible from eastern Texas through the lower Mississippi Valley into Friday. Meanwhile, Kona low to the northwest of the Hawaiian islands will bring a chance of flash flooding. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

62°F

17°C

Humidity 56%
Wind Speed SE 10 mph
Barometer 30.16 in (1021.1 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 29 Nov 12:56 pm CST
Extended Forecast for

San Marcos TX

  • This
    Afternoon

    This Afternoon: Cloudy, with a high near 60. South southeast wind 5 to 10 mph.

    Cloudy

    High: 60 °F

  • Tonight

    Tonight: A chance of showers, then showers and possibly a thunderstorm after midnight.  Patchy fog after 9pm. Low around 57. Southeast wind 5 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers and
    Patchy Fog
    then Showers
    and Patchy
    Fog

    Low: 57 °F

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon.  Patchy fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. South southeast wind 10 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely and
    Patchy Fog
    then Chance
    T-storms

    High: 72 °F

  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around 52. Southwest wind 5 to 10 mph becoming northwest after midnight.

    Mostly Cloudy

    Low: 52 °F

  • Friday

    Friday: Partly sunny, with a high near 70. Northwest wind 5 to 10 mph becoming northeast in the afternoon.

    Partly Sunny

    High: 70 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 48. Northeast wind 5 to 10 mph.

    Partly Cloudy

    Low: 48 °F

  • Saturday

    Saturday: Mostly cloudy, with a high near 70. North wind 5 to 10 mph.

    Mostly Cloudy

    High: 70 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm.

    Mostly Cloudy

    Low: 50 °F

  • Sunday

    Sunday: Partly sunny, with a high near 71. Northwest wind 5 to 10 mph becoming south southwest in the afternoon.

    Partly Sunny

    High: 71 °F

Detailed Forecast

This Afternoon
Cloudy, with a high near 60. South southeast wind 5 to 10 mph.
Tonight
A chance of showers, then showers and possibly a thunderstorm after midnight. Patchy fog after 9pm. Low around 57. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. South southeast wind 10 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 52. Southwest wind 5 to 10 mph becoming northwest after midnight.
Friday
Partly sunny, with a high near 70. Northwest wind 5 to 10 mph becoming northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 48. Northeast wind 5 to 10 mph.
Saturday
Mostly cloudy, with a high near 70. North wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm.
Sunday
Partly sunny, with a high near 71. Northwest wind 5 to 10 mph becoming south southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 67.
Click Map For Forecast
Point Forecast:
San Marcos TX
 29.88°N 97.94°W (Elev. 577 ft)
11:42 am CST Nov 29, 2023
1pm CST Nov 29, 2023-6pm CST Dec 5, 2023
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database