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New: October-December2026 Outlook - After a brutally hot and dry September, October brings the pattern change to wetter and less hot, with above average rainfall to close out 2026; flash flooding, water supply, & hazardous marine conditions in focus

Hazardous Weather Conditions

Special Weather Statement

Current conditions at

McAllen, Miller International Airport (KMFE)

Lat: 26.18°NLon: 98.24°WElev: 105ft.

Mostly Cloudy

96°F

36°C

Humidity	52%
Wind Speed	SE 15 G 24 mph
Barometer	29.72 in (1006.1 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	109°F (43°C)
Last update	1 Oct 1:53 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Sullivan City TX

This Afternoon
High: 101 °F
Chance
T-storms
Tonight
Low: 77 °F
Showers
Friday
High: 91 °F
Showers
Likely
Friday Night
Low: 75 °F
Showers
Saturday
High: 90 °F
Chance
Showers then
Showers
Saturday Night
Low: 74 °F
Showers
Sunday
High: 87 °F
Showers
Sunday Night
Low: 74 °F
Showers
Monday
High: 86 °F
Showers
Likely

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy and hot, with a high near 101. Heat index values as high as 115. Southeast wind around 10 mph, with gusts as high as 20 mph.

Tonight

Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Low around 77. Southeast wind 5 to 8 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Friday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 91. Calm wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Low around 75. Light and variable wind. Chance of precipitation is 80%.

Saturday

A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 90. North wind 5 to 8 mph. Chance of precipitation is 80%.

Saturday Night

Showers and possibly a thunderstorm. Low around 74. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%.

Sunday

Showers and possibly a thunderstorm. High near 87. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

Sunday Night

Showers and possibly a thunderstorm. Low around 74. Light north wind increasing to 5 to 9 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.

Monday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. North wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

Monday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 72. Calm wind becoming north northwest 5 to 7 mph after midnight. Chance of precipitation is 30%.

Tuesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. North wind 8 to 10 mph, with gusts as high as 20 mph.

Tuesday Night

Partly cloudy, with a low around 71.

Wednesday

Mostly sunny, with a high near 91.