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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, 12:45 PM CDT

Current conditions at

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Heavy Rain Fog/Mist

76°F

24°C

Humidity	94%
Wind Speed	E 6 mph
Barometer	29.98 in (1015.1 mb)
Dewpoint	74°F (23°C)
Visibility	1.75 mi
Heat Index	76°F (24°C)
Last update	4 Oct 11:52 am CDT

More Information:

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

Extended Forecast for

9 Miles N Rio Hondo TX

Flood Advisory October 4, 12:28pm until October 4, 12:45pm

Click here for hazard details and duration

...

Flood Advisory October 4, 12:28pm until October 4, 12:45pm
NOW until 12:45pm Sun
Flood Advisory
This Afternoon
High: 84 °F
Heavy Rain
Tonight
Low: 72 °F
Showers
Monday
High: 84 °F
Showers
Monday Night
Low: 71 °F
Showers
Likely
Tuesday
High: 89 °F
Chance
Showers
Tuesday Night
Low: 71 °F
Mostly Clear
Wednesday
High: 91 °F
Sunny then
Slight Chance
Showers
Wednesday Night
Low: 71 °F
Mostly Clear
then Slight
Chance
Showers

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 84. North northeast wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 72. North northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Monday

Showers and possibly a thunderstorm. High near 84. North wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Monday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. North northeast wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Tuesday

A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm. Mostly sunny, with a high near 89. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

Tuesday Night

Mostly clear, with a low around 71. North northeast wind 5 to 9 mph becoming calm.

Wednesday

A 20 percent chance of showers after 1pm. Sunny, with a high near 91. North northeast wind 8 to 14 mph, with gusts as high as 22 mph.

Wednesday Night

A 20 percent chance of showers after 1am. Mostly clear, with a low around 71. Northeast wind 5 to 9 mph becoming calm.

Thursday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. North northeast wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Thursday Night

A 40 percent chance of showers. Partly cloudy, with a low around 71. North northeast wind 5 to 9 mph.

Friday

Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. North northeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Friday Night

A 30 percent chance of showers. Partly cloudy, with a low around 70.

Saturday

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