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

McAllen, Miller International Airport (KMFE)

Lat: 26.18°NLon: 98.24°WElev: 105ft.

Thunderstorm Light Rain

84°F

29°C

Humidity 82%
Wind Speed S 10 mph
Barometer 29.92 in (1012.8 mb)
Dewpoint 78°F (26°C)
Visibility 9.00 mi
Heat Index95°F (35°C)
Last update 18 May 11:53 pm CDT
Extended Forecast for

Sullivan City TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 80. Southeast wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: 80 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 97. Heat index values as high as 110. Southeast wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 97 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 79. Southeast wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 11am. Mostly cloudy, with a high near 95. Southeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 95 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 77. East southeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 92. East southeast wind 6 to 9 mph. Chance of precipitation is 60%.

    High: 92 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 76. Southeast wind 6 to 10 mph. Chance of precipitation is 70%.

    Low: 76 °F

    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. South southeast wind 5 to 9 mph.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. Southeast wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 80. Southeast wind 11 to 15 mph, with gusts as high as 26 mph.
Tuesday
Partly sunny, with a high near 97. Heat index values as high as 110. Southeast wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 79. Southeast wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 11am. Mostly cloudy, with a high near 95. Southeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 77. East southeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 92. East southeast wind 6 to 9 mph. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 76. Southeast wind 6 to 10 mph. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. South southeast wind 5 to 9 mph.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. Southeast wind 6 to 8 mph. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Southeast wind 5 to 9 mph.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. East southeast wind 5 to 8 mph. Chance of precipitation is 70%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Memorial Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan City TX
 26.29°N 98.57°W
Last Update:
12:18 am CDT May 19, 2026
Forecast Valid:
12am CDT May 19, 2026-6pm CDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation