National Weather Service

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New: Quick Summary of Starr County Damaging Wind, Hail, and Flash Flooding March 7-8, 2026
New! Understand Spring and Summer Hazardous Weather in the RGV with the 2026 Guide
Winter 2025/2026 Weather and Climate Summary for the RGV - Warm and Dry - and a Hard Freeze - Worsens Drought
March-May (Spring 2026) Outlook: Warmer than normal temperatures are favored to continue; precipitation is a toss-up; drought, wildfire potential, water supply, and heat risk concerns are in focus
The Potential for Wildfire Spread Will Remain Acute through Early March. Stop Wildfires Before they Start with Smokey Bear
El riesgo de propagación de incendios forestales aumenta durante marzo. Revise estas medidas de prevención.
Drought is Worsening and Increasing in Coverage Across the Area as We Head into Spring. Track Its Coverage Here.

Current conditions at

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Fair

73°F

23°C

Humidity	32%
Wind Speed	NE 15 mph
Barometer	30.21 in (1023.0 mb)
Dewpoint	41°F (5°C)
Visibility	10.00 mi
Last update	12 Mar 4:52 pm CDT

More Information:

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

Extended Forecast for

Harlingen, Rio Grande Valley International Airport TX

This Afternoon
High: 75 °F
Sunny
Tonight
Low: 48 °F
Clear
Friday
High: 84 °F
Sunny
Friday Night
Low: 57 °F
Clear
Saturday
High: 89 °F
Sunny then
Sunny and
Breezy
Saturday Night
Low: 66 °F
Mostly Clear
and Breezy
then Mostly
Clear
Sunday
High: 94 °F
Sunny and
Breezy
Sunday Night
Low: 52 °F
Partly Cloudy
then Mostly
Cloudy and
Breezy
Monday
High: 67 °F
Mostly Sunny
and Breezy

Detailed Forecast

This Afternoon

Sunny, with a high near 75. North northeast wind around 17 mph, with gusts as high as 23 mph.

Tonight

Clear, with a low around 48. Northeast wind 10 to 15 mph becoming light east southeast after midnight. Winds could gust as high as 20 mph.

Friday

Sunny, with a high near 84. Calm wind becoming east southeast 5 to 9 mph in the afternoon.

Friday Night

Clear, with a low around 57. South southeast wind 8 to 15 mph, with gusts as high as 20 mph.

Saturday

Sunny, with a high near 89. Breezy, with a south southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

Saturday Night

Mostly clear, with a low around 66. Breezy, with a south southeast wind 14 to 20 mph, with gusts as high as 26 mph.

Sunday

Sunny, with a high near 94. Breezy, with a south wind 14 to 20 mph, with gusts as high as 29 mph.

Sunday Night

Mostly cloudy, with a low around 52. Breezy, with a south southeast wind 13 to 21 mph becoming north after midnight. Winds could gust as high as 32 mph.

Monday

Mostly sunny, with a high near 67. Breezy, with a north wind 20 to 25 mph, with gusts as high as 38 mph.

Monday Night

Partly cloudy, with a low around 48. North northeast wind 6 to 15 mph, with gusts as high as 24 mph.

Tuesday

Partly sunny, with a high near 76. North northeast wind 6 to 15 mph becoming east in the afternoon. Winds could gust as high as 22 mph.

Tuesday Night

Partly cloudy, with a low around 56.

Wednesday

Mostly sunny, with a high near 82.