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

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Mostly Cloudy

75°F

24°C

Humidity 94%
Wind Speed N 14 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 5 Oct 3:52 am CDT
Extended Forecast for

Sebastian TX

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. North wind around 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. North wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. North wind 7 to 11 mph, with gusts as high as 25 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 88. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 70. North northeast wind 5 to 7 mph becoming calm. Chance of precipitation is 10%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. North northeast wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 90 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Northeast wind 5 to 8 mph becoming calm. Winds could gust as high as 20 mph.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. North northeast wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 89 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northeast wind 3 to 8 mph. Winds could gust as high as 21 mph.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. North wind around 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. North wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. North wind 7 to 11 mph, with gusts as high as 25 mph. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 88. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Tuesday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 70. North northeast wind 5 to 7 mph becoming calm. Chance of precipitation is 10%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. North northeast wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Northeast wind 5 to 8 mph becoming calm. Winds could gust as high as 20 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. North northeast wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northeast wind 3 to 8 mph. Winds could gust as high as 21 mph.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. North wind 9 to 13 mph, with gusts as high as 23 mph.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 70. North wind 3 to 8 mph. Winds could gust as high as 21 mph.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 92.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sebastian TX
 26.37°N 97.78°W
Last Update:
4:18 am CDT Oct 5, 2026
Forecast Valid:
4am CDT Oct 5, 2026-6pm CDT Oct 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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