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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

Current conditions at

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Thunderstorm in Vicinity

78°F

26°C

Humidity	85%
Wind Speed	NW 14 mph
Barometer	29.81 in (1009.2 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	1 Oct 9:52 pm CDT

More Information:

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

Extended Forecast for

2 Miles WNW Sebastian TXSimilar City Names

Tonight
Low: 75 °F
Chance
Showers then
Showers
Likely
Friday
High: 92 °F
Chance
Showers then
Showers
Likely
Friday Night
Low: 73 °F
Chance
Showers then
Showers
Likely
Saturday
High: 90 °F
Showers
Likely then
T-storms
Saturday Night
Low: 72 °F
Showers
Sunday
High: 86 °F
Showers
Likely then
T-storms
Sunday Night
Low: 71 °F
Showers
Monday
High: 85 °F
Showers
Likely
Monday Night
Low: 70 °F
Chance
T-storms

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 75. Southeast wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 92. Light and variable wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 73. East wind around 5 mph becoming calm. Chance of precipitation is 70%.

Saturday

Showers and possibly a thunderstorm. High near 90. North wind 7 to 9 mph. Chance of precipitation is 80%.

Saturday Night

Showers and possibly a thunderstorm. Low around 72. North wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

Sunday

Showers and possibly a thunderstorm. High near 86. North wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

Sunday Night

Showers and possibly a thunderstorm. Low around 71. North wind 7 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

Monday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. North wind 13 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.

Monday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. North wind 6 to 13 mph, with gusts as high as 26 mph.

Tuesday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. North wind 11 to 15 mph, with gusts as high as 30 mph.

Tuesday Night

Partly cloudy, with a low around 70. North northeast wind 5 to 7 mph becoming calm.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Thursday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.