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Harlingen, TX Weather

Live radar, hourly and 7-day forecast, and National Weather Service alerts for Harlingen, Cameron County, Texas.

Updated Jul 29, 2026, 2:57 PM local time · Radar refreshes every 5 minutes

☀️
Harlingen
Clear
99°F
Feels like 102°F
Wind 17 mph
Humidity 38%
Cloud cover 0%
UV index 9
Alerts 1

Active alerts (1)

Special Weather StatementModerate
Zapata; Jim Hogg; Brooks; Inland Kenedy; Starr; Southern Hidalgo; Inland Willacy; Inland Cameron; Northern Hidalgo
Until Jul 30, 2026, 12:00 AM
Full details
The combination of hot temperatures and humidity will produce heat
index values between 105 and 111 degrees for several hours
this afternoon and early evening. A few locations may briefly
experience heat index values above 111 degrees.

If spending time outside today, drink plenty of water, wear light
weight and light colored clothing, and take frequent breaks from
the heat. Young children and pets should never be left unattended
in vehicles.

Harlingen weather radar

Light Heavy

Next 24 hours

Now
☀️
98°F
 
3 PM
☀️
99°F
 
4 PM
☀️
99°F
 
5 PM
☀️
97°F
 
6 PM
☀️
95°F
 
7 PM
☀️
91°F
 
8 PM
☀️
88°F
 
9 PM
☀️
86°F
 
10 PM
☀️
85°F
 
11 PM
☀️
85°F
 
12 AM
☀️
85°F
 
1 AM
☀️
84°F
 
2 AM
☀️
83°F
 
3 AM
83°F
 
4 AM
☁️
84°F
 
5 AM
☁️
83°F
 
6 AM
☁️
82°F
 
7 AM
☁️
82°F
 
8 AM
☁️
83°F
 
9 AM
☁️
87°F
 
10 AM
☁️
90°F
 
11 AM
☁️
93°F
 
12 PM
☁️
96°F
 
1 PM
☁️
98°F
 

7-day forecast

Today
Jul 29
☁️
99°F
82°F
Thu
Jul 30
☁️
100°F
82°F
Fri
Jul 31
☁️
101°F
80°F
1%
Sat
Aug 1
☁️
100°F
78°F
Sun
Aug 2
104°F
79°F
12%
Mon
Aug 3
☁️
103°F
79°F
3%
Tue
Aug 4
☁️
102°F
78°F
1%

Weather near Harlingen

6 mi San Benito, TX14 mi Mercedes, TX18 mi Weslaco, TX22 mi Donna, TX23 mi Brownsville, TX26 mi Alamo, TX28 mi San Juan, TX30 mi Edinburg, TX
Alerts are relayed from the National Weather Service and may lag the official source. In a life-threatening situation always follow weather.gov and local emergency broadcasts.