Brownsville/Rio Grande Valley, TX

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Last Map Update: Wed, Jun 17, 2026 at 9:26:23 pm CDT

Watches, Warnings & Advisories

National Weather Service Corpus Christi, TX

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Tropical Storm Warning

Flood Warning

Extreme Heat Warning

Small Craft Advisory

Extreme Heat Warning

Heat Safety

Tonight

Tomorrow

5-Day Outlook

Extreme Heat Watch has been UPGRADED to an Extreme Heat Warning for all of Deep South Texas excluding the Islands from 11 AM to 8 PM CDT Thursday. "Feels-like" temperatures will surge to 116-125F degrees for many Thursday afternoon. Little to no relief is expected Thursday night through Friday night. Make sure to check on the elderly, vulnerable populations, livestock, and pets to ensure they have access to cool locations and water.

With the hottest "feels-like" temperatures in three years (since mid-June 2023) on their way to the Valley, it's critical to follow these heat-safety tips beginning Wednesday and continuing through at least Friday. Most importantly, find cool locations by day and especially at night.

Here are the forecast low temperatures and rain chances for Deep South Texas tonight.

Here are the forecast high temperatures and rain chances for Deep South Texas tomorrow.

Dangerous "feels-like" temperatures peak on Thursday (Extreme Heat) and may continue into Friday before easing back a few degrees to more typical late-June levels as the summer solstice arrives on Sunday. Isolated to perhaps scattered late Saturday afternoon and evening thunderstorms may reach the Rio Grande Plains and Brush Country.

*Current Observations ( )*
*Location*	*Sky/Weather*	*Temp*	*Dewpt*	RH	*Wind*	*Baro*	*Remarks*
Brownsville	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Harlingen	N/A	N/A	N/A	N/A	N/A	N/A	N/A
McAllen	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Bayview	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Weslaco	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Edinburg	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Zapata	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Hebbronville	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Falfurrias	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Laredo	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Kingsville	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Alice	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Notes: *In the Location column, click on links for a list of recent observations at sites of interest. A new window will open.* *In the Wind column, the letter indicates direction the wind blows from (N=North, E=East, S=South, W=West, NE=Northeast, etc). VRB is "variable" and G is "gust". Wind speeds are in MPH.* *In the Baro (pressure) column, values are in inches.* *In the Remarks column, HX is the Heat Index and WCI is Wind Chill Index (if shown). These are "Feels Like" temperatures. VSB is Visibility. "N/A" will be displayed if values are not available.*

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