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.

Partly Cloudy

93°F

34°C

Humidity 49%
Wind Speed N 5 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 24 Aug 12:53 pm CDT
Extended Forecast for

Sullivan City TX

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 106. Northeast wind around 6 mph.

    High: 95 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. East wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 77 °F

    Heavy Rain
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Heat index values as high as 108. Calm wind becoming east southeast 5 to 7 mph in the afternoon. Chance of precipitation is 50%.

    High: 97 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 78. Southeast wind 3 to 8 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Light southeast wind increasing to 5 to 9 mph in the morning.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 77. Southeast wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Light east southeast wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 98 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 99. Light east southeast wind becoming southeast 5 to 9 mph in the morning.

    High: 99 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 106. Northeast wind around 6 mph.
Tonight
Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. East wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Heat index values as high as 108. Calm wind becoming east southeast 5 to 7 mph in the afternoon. Chance of precipitation is 50%.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 78. Southeast wind 3 to 8 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Light southeast wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 77. Southeast wind 5 to 10 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Light east southeast wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 99. Light east southeast wind becoming southeast 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 77. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny and hot, with a high near 100. Southeast wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 78.
Saturday
Sunny and hot, with a high near 100.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan City TX
 26.26°N 98.57°W
Last Update:
1:00 pm CDT Aug 24, 2025
Forecast Valid:
1pm CDT Aug 24, 2025-6pm CDT Aug 30, 2025
 
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