US National Weather Service Brownsville/Rio Grande Valley Texas

08/31/2026

08/31/2026

An Extreme Heat Risk will affect the populated areas of Cameron, Hidalgo, Starr, and Zapata counties today. Meanwhile, a Major Heat Risk will affect the remainder of Deep South Texas. Visit weather.gov/heat for heat safety tips and resources.

08/31/2026

Hot temperatures and dry weather will prevail for a majority of the forecast. However, precipitation may return for the first half of the weekend.

08/31/2026

Wildfires are caused by a spark (usually man-made) in the presence of fuel (dry vegetation) and oxygen. Strong winds, high temperatures, low humidity and drought conditions can further impact the fire’s spread. To stay Weather-Ready and protect yourself from wildfires, visit weather.gov/safety/wildfire

08/31/2026

Favorable weather conditions will be enhanced by a LOW RISK of rip currents in the surf zone at the local beaches.

08/31/2026

Warm temperatures can quickly rise to dangerous levels — especially in the summer and in parked cars. Stay Weather-Ready and don’t underestimate the heat. weather.gov/safety/heat

08/30/2026

Above average temperatures persist tonight into tomorrow as dry and breezy conditions return, though an isolated shower or two cannot be entirely ruled out tomorrow afternoon.

08/30/2026

***OUTDATED***

3:00 PM: Radar shows short-lasting pop-up isolated showers, and a thunderstorm or two, moving west over the coastal counties along the seabreeze boundary at this time. This activity could continue westward into the mid valley, possibly into the upper valley, through the next couple hours.

08/30/2026

Hot temperatures are forecast to continue across Deep South Texas, with heat index values of 104 to 111°F this afternoon. Visit weather.gov/heat for heat safety tips and resources.