National Weather Service

News Headlines

New: Preliminary Damage Survey Of Harlingen To Laureles Texas Microburst Event On May 9, 2026
We're Hiring! If You're a Budding Meteorologist Looking for a Fulfilling Career, Apply Today to Join Our Team
New: The 2026 Rio Grande Valley/Deep South Texas Hurricane Guide is Here!
Nuevo: Guia de Huracanes 2026 del Valle del Rio Grande/Extremo Sur de Texas es Aqui!
New: May-July 2026 Outlook: Hotter than normal temperatures are favored to continue into the upcoming summer season; precipitation remains a toss-up; drought, heat risk increases, occasional heavy rain/flooding, & water supply issues remain in focus

Current conditions at

McAllen, Miller International Airport (KMFE)

Lat: 26.18°NLon: 98.24°WElev: 105ft.

A Few Clouds

90°F

32°C

Humidity	58%
Wind Speed	SE 13 mph
Barometer	29.91 in (1012.6 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	20 May 2:53 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: 93 °F
Slight Chance
Showers
Tonight
Low: 74 °F
Chance
T-storms then
Showers
Likely
Thursday
High: 89 °F
Chance
Showers then
Chance
T-storms
Thursday Night
Low: 74 °F
Chance
T-storms
Friday
High: 94 °F
Partly Sunny
then Slight
Chance
T-storms
Friday Night
Low: 76 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 91 °F
Slight Chance
T-storms then
Showers
Likely
Saturday Night
Low: 75 °F
Showers
Likely
Sunday
High: 90 °F
Slight Chance
T-storms then
Chance
T-storms

Detailed Forecast

This Afternoon

A 20 percent chance of showers after 5pm. Partly sunny, with a high near 93. East wind around 11 mph, with gusts as high as 20 mph.

Tonight

A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 74. East southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

A 50 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 89. North northeast wind 5 to 8 mph becoming south southeast in the morning.

Thursday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 74. Southeast wind around 7 mph. Chance of precipitation is 30%.

Friday

A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. South southeast wind 3 to 8 mph.

Friday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind around 9 mph.

Saturday

A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 91. South southeast wind 7 to 9 mph. Chance of precipitation is 60%.

Saturday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 75. Southeast wind 3 to 8 mph. Chance of precipitation is 60%.

Sunday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. East southeast wind 3 to 6 mph.

Sunday Night

A 50 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening.

Memorial Day

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming east northeast around 6 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 74.

Tuesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.