Brownsville/Rio Grande Valley, TX

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Last Map Update: Mon, Jun 15, 2026 at 12:54:18 pm CDT

Watches, Warnings & Advisories

National Weather Service Corpus Christi, TX

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Flood Warning

Flood Watch

Flash Flooding Likely This Week

Tropical Weather Outlook

Forecast Rainfall Totals

Tonight

Tomorrow

5-Day Outlook

A Flood Watch is now in effect for all of Deep South Texas into Thursday morning, with estimated total rainfall amounts of 5-10 inches, and isolated amounts of 12 inches or more where heavier showers or thunderstorms persist.

Slow moving, heavy rainfall over the coming days will lead to increased risk for flash flooding across deep south Texas. We currently anticipate that most areas are likely to receive 3-6 inches of rain Monday through Wednesday, with localized amounts up to 8+ inches. Today, all of deep south Texas, and tomorrow, most of deep south Texas is under a MODERATE risk (Level 3 of 4) of excessive rainfall when NUMEROUS FLASH FLOODS are LIKELY. Tuesday and Wednesday, portions of deep south Texas are within a Slight Risk (level 2 of 4) of scattered flash flooding, and Wednesday there is a Marginal Risk (level 1 of 4) of isolated flash flooding.

An inland trough of low pressure is situated over northeastern Mexico. Development is not expected over the next day or so. However, conditions are marginally conducive for tropical development Wednesday into Thursday. Heavy rainfall and rip currents remain the main concern along the lower Texas coast. 🟠 Formation chance through 48 hours...medium...40 percent. 🟠 Formation chance through 7 days...medium...50 percent.

Heavy rain leading to flash flooding is likely across deep South Texas today and tomorrow. Forecast rainfall amounts over today and tomorrow are 3-6 inches widespread, with localized areas of 6-8 inches possible under areas that see repeated, heavy showers. Stay weather aware, and make sure you have a way to receive weather alerts on your phone.

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.

Daily rain chances continue through the week as tropical moisture remains in place across the region. Scattered to numerous showers and thunderstorms may produce locally heavy rainfall early in the forecast period.

*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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