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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

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Mostly Cloudy

76°F

24°C

Humidity	94%
Wind Speed	E 6 mph
Barometer	29.73 in (1006.6 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	76°F (24°C)
Last update	1 May 3:52 am CDT

More Information:

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

Extended Forecast for

Harlingen TX

Overnight
Low: 75 °F
Mostly Cloudy
Friday
High: 94 °F
Partly Sunny
Friday Night
Low: 59 °F
Chance
T-storms then
Showers
Likely and
Breezy
Saturday
High: 75 °F
Chance
Showers and
Breezy
Saturday Night
Low: 60 °F
Partly Cloudy
Sunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 65 °F
Partly Cloudy
Monday
High: 85 °F
Partly Sunny
Monday Night
Low: 72 °F
Mostly Cloudy

Detailed Forecast

Overnight

Mostly cloudy, with a low around 75. Southeast wind around 8 mph.

Friday

Partly sunny, with a high near 94. South wind 7 to 14 mph, with gusts as high as 22 mph.

Friday Night

A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 59. Breezy, with a south southeast wind 11 to 18 mph becoming north northwest in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday

A 30 percent chance of showers, mainly before 7am. Mostly cloudy, with a high near 75. Breezy, with a north northwest wind 15 to 18 mph, with gusts as high as 33 mph.

Saturday Night

Partly cloudy, with a low around 60. North northeast wind 5 to 14 mph, with gusts as high as 22 mph.

Sunday

Mostly sunny, with a high near 82. North wind 6 to 11 mph becoming east in the afternoon.

Sunday Night

Partly cloudy, with a low around 65. Southeast wind 6 to 10 mph.

Monday

Partly sunny, with a high near 85. South southeast wind 6 to 14 mph, with gusts as high as 23 mph.

Monday Night

Mostly cloudy, with a low around 72. Southeast wind 11 to 15 mph, with gusts as high as 24 mph.

Tuesday

Partly sunny, with a high near 92. Breezy, with a south southeast wind 11 to 18 mph, with gusts as high as 30 mph.