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New: The 2026 Rio Grande Valley/Deep South Texas Hurricane Guide is Here!
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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

84°F

29°C

Humidity	77%
Wind Speed	SE 12 mph
Barometer	29.90 in (1012.3 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	19 May 10:53 pm CDT

More Information:

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

Extended Forecast for

Rio Grande City TX

Tonight
Low: 77 °F
Chance
T-storms
Wednesday
High: 94 °F
Heavy Rain
then Partly
Sunny
Wednesday Night
Low: 76 °F
Slight Chance
T-storms then
Chance
Showers
Thursday
High: 92 °F
Chance
T-storms
Thursday Night
Low: 74 °F
Showers
Likely
Friday
High: 94 °F
Slight Chance
T-storms
Friday Night
Low: 76 °F
Chance
T-storms
Saturday
High: 93 °F
Slight Chance
Showers then
Chance
T-storms
Saturday Night
Low: 74 °F
Showers
Likely

Detailed Forecast

Tonight

A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 77. East wind around 8 mph, with gusts as high as 20 mph.

Wednesday

A 40 percent chance of showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 94. Southeast wind 7 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

A slight chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. East southeast wind 3 to 8 mph. Chance of precipitation is 40%.

Thursday

A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 92. Southeast wind 3 to 7 mph.

Thursday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 74. Southeast wind around 6 mph. Chance of precipitation is 70%.

Friday

A slight chance of thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South southeast wind 5 to 8 mph. Chance of precipitation is 20%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind around 6 mph. Chance of precipitation is 50%.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 3 to 8 mph. Chance of precipitation is 40%.

Saturday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

Sunday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming east around 6 mph in the afternoon.

Sunday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. 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 89.

Monday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

Tuesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.