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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

Flood Advisory until October 4, 11:45 AM CDT

Current conditions at

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Rain Fog/Mist

76°F

24°C

Humidity	97%
Wind Speed	N 15 mph
Barometer	29.96 in (1014.4 mb)
Dewpoint	75°F (24°C)
Visibility	5.00 mi
Heat Index	75°F (24°C)
Last update	4 Oct 10:52 am CDT

More Information:

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

Extended Forecast for

4 Miles SE Rio Hondo TX

Flood Advisory October 4, 11:17am until October 4, 11:45am

Click here for hazard details and duration

Flood Advisory

Flood Advisory October 4, 11:17am until October 4, 11:45am
NOW until 11:45am Sun
Flood Advisory
Today
High: 85 °F
Heavy Rain
Tonight
Low: 73 °F
Showers
Monday
High: 85 °F
Showers
Monday Night
Low: 72 °F
Showers
Likely
Tuesday
High: 88 °F
Showers
Likely
Tuesday Night
Low: 72 °F
Mostly Clear
Wednesday
High: 91 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 73 °F
Mostly Clear
then Slight
Chance
Showers

Detailed Forecast

Today

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 85. North northeast wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Tonight

Showers and possibly a thunderstorm. Low around 73. North wind 7 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Monday

Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 85. North wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Monday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 72. North northeast wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

Tuesday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

Tuesday Night

Mostly clear, with a low around 72. North northeast wind 5 to 11 mph.

Wednesday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91. North northeast wind 9 to 15 mph, with gusts as high as 23 mph.

Wednesday Night

A 20 percent chance of showers after 1am. Mostly clear, with a low around 73. North northeast wind 5 to 11 mph.

Thursday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. North wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Thursday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 72. North northeast wind 6 to 11 mph.

Friday

Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. North northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

Friday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 72.

Saturday

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