Weather Alerts For Los Fresnos, TX

# SUMMARY -------------------- The combination of hot temperatures and elevated humidity levels will produce heat index values between 108 and 111 degrees for several hours this afternoon into this evening. A few locations may briefly experience heat index values above 111 degrees. If spending time outside today, drink plenty of water, wear light weight and light colored clothing and take frequent breaks from the heat. Young children and pets should never be left unattended in vehicles. # DETAILS -------------------- ISSUED AT Saturday, September 5, 2026 at 7:46 AM CDT ISSUED BY National Weather Service Brownsville TX HEADER Special Weather Statement # AREAS AFFECTED -------------------- Coastal Kenedy, Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, Southern Hidalgo Including the cities of Sarita, McAllen, Edinburg, Pharr, Mission, Weslaco, Raymondville, Brownsville, Harlingen, Port Mansfield, Port Isabel, and Laguna Vista

Pollen Index: 9.6 Pollen Level: medium-high Predominant Pollen: Ragweed, Elm and Chenopods. Concentration of pollen grains in the air for Sunday will be unchanged in the high range. This is a result of stable humidity. Constant and seasonally normal weather conditions tend to stabilize pollen concentrations in the outdoor air.