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

Areas of Heavy Rainfall and Heat Early This Week

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and lower Mississippi River Valley today into Thursday. Rainfall totals of 5 to 10 inches are expected. Hot temperatures may cause heat illnesses over central and northern California and the Pacific Northwest through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Seguin - Randolph AFB Auxiliary Field (KSEQ)

Lat: 29.57°NLon: 97.91°WElev: 525ft.

Light Rain Fog/Mist

79°F

26°C

Humidity 88%
Wind Speed Calm
Barometer 29.84 in (1010.1 mb)
Dewpoint 75°F (24°C)
Visibility 5.00 mi
Heat Index83°F (28°C)
Last update 15 Jun 8:55 pm CDT
Extended Forecast for

Seguin TX

Flood Watch June 15, 09:24pm until June 16, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 15, 09:24pm until June 16, 07:00pm

    NOW until 7:00pm Tue

    Flood Watch

  • Tonight

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 83. Light northeast wind becoming east northeast 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 83 °F

    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 4am. Partly cloudy, with a low around 72. East wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 102. East northeast wind 5 to 10 mph.

    High: 89 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 95. South southeast wind 5 to 10 mph.

    High: 95 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. East northeast wind 5 to 10 mph.

    High: 92 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 73. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 83. Light northeast wind becoming east northeast 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A 20 percent chance of showers after 4am. Partly cloudy, with a low around 72. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 102. East northeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 75. South southeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 95. South southeast wind 5 to 10 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph.
Juneteenth
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. East northeast wind 5 to 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East southeast wind 5 to 10 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seguin TX
 29.56°N 97.96°W (Elev. 449 ft)
Last Update:
8:44 pm CDT Jun 15, 2026
Forecast Valid:
9pm CDT Jun 15, 2026-6pm CDT Jun 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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