textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 515 AM CST Mon Feb 9 2026

- Very low chances (less than 10%) of rain Tuesday.

- Above normal high temperatures into the upper 80s this week.

DISCUSSION

Issued at 1052 PM CST Sun Feb 8 2026

An upper-level ridge looks to remain situated over the Central US through the week, promoting generally warm and dry weather across Deep South Texas. A shortwave looks to traverse across Texas Tuesday night into Wednesday, enhancing pressure gradients along the Lower Texas Coast and bringing a low (20%) chance of rain to portions of the coastal Gulf waters.

High temperatures look to largely remain in the 80s through the week, though western portions of the CWA may climb into the low 90s through the later half of the week. Despite persistent southeasterly winds continuing through the week, a relatively dry air mass looks to remain in place across the area, with dewpoints remaining in the 50s to low 60s through much of the week. This will likely support a wide diurnal temperature range, with low temperatures falling to the upper 50s to low 60s each night.

AVIATION

(12Z TAFS) Issued at 515 AM CST Mon Feb 9 2026

Brief IFR to LIFR conditions possible at BRO and HRL with MIFG over the next hour or two, with conditions quickly improving after sunrise. Southeasterly winds become breezy into this afternoon, with gusts to 20 kts until early this evening. A repeat of MIFG is possible late tonight at BRO and HRL again.

MARINE

Issued at 1052 PM CST Sun Feb 8 2026

Generally favorable marine conditions are forecast to persist through the majority of the period. An upper-level shortwave trough will likely enhance pressure gradients along the Lower Texas Coast Tuesday night into Wednesday, leading to stronger winds along the Laguna Madre and portions of the Gulf waters. Brief Small Craft Should Exercise Caution headlines may be needed Tuesday. Otherwise, light to moderate southeasterly winds and slight to moderates seas are forecast through the week.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 81 64 81 64 / 0 0 0 0 HARLINGEN 83 59 83 60 / 0 0 0 0 MCALLEN 86 62 87 64 / 0 0 0 0 RIO GRANDE CITY 87 60 87 61 / 0 0 0 0 SOUTH PADRE ISLAND 72 65 73 65 / 0 0 0 0 BAYVIEW/PORT ISABEL 79 61 79 61 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

TX...None. GM...None.