Brownsville/Rio Grande Valley, TX

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Last Map Update: Tue, Jun 16, 2026 at 4:48:29 pm CDT

Watches, Warnings & Advisories

National Weather Service Corpus Christi, TX

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Flood Warning

Tropical Storm Watch

Coastal Flood Advisory

Small Craft Advisory

Flood Watch

Flash Flooding Possible Today

Potential Tropical Cyclone One

Monday Rainfall Totals

Tonight

Tomorrow

5-Day Outlook

A Flood Watch is now in effect for all of Deep South Texas into Wednesday morning. Yesterday, 2 to 6 inches of rain fell. Today, up to 2 more inches are forecast to fall with isolated amounts of 4 inches or more where heavier showers or thunderstorms persist.

Slow moving, heavy rainfall is possible today. This will lead to increased risk for flash flooding across deep south Texas. Many areas have already received rain, and 0.5 to 2 more inches are possible today, with localized amounts of 2 to 4 inches possible. Today, coastal portions of deep south Texas are within a Slight Risk (level 2 of 4) of excessive rain leading to flash flooding, with the remaining inland portions of the area in a Marginal Risk (level 1 of 4) of excessive rainfall leading to flash flooding.

The National Hurricane Center is issuing advisories on Potential Tropical Cyclone One. It is forecast to become a Tropical Storm as it moves along the northwest Gulf through Wednesday. Any local impacts will be limited to the coast, including an increase in life-threatening rip currents.

Heavy rain on Monday brought anywhere from a half inch to 6+ inches in just 24 hours. More heavy showers and thunderstorms are possible today, but rain chances will decrease from west to east through the afternoon and evening as the low pressure bringing this abnormal moisture moves offshore. Areas that received heavy rain yesterday may be sensitive to more heavy rainfall today.

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.

Drying conditions are anticipated Wednesday into Thursday before rain chances return for the end of the week and into the first half of the weekend.

*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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