McAllen woke Thursday under mostly cloudy skies with temperatures around 75 degrees, but the Rio Grande Valley is about to turn the thermostat back toward summer. The afternoon forecast calls for a high near 89, a small chance of an isolated shower or thunderstorm, and southeast winds that could gust to 21 mph. Most of the area should stay dry, though the better rain odds are west toward the Rio Grande Plains.
The National Weather Service says tropical moisture will keep a few showers possible Thursday, especially across the Rio Grande Plains. For McAllen, the rain chance stays near 10% Thursday before dropping to 0% Thursday night and remaining at 0% Friday and Friday night. The latest outlook sharpens the hot Halloween setup described in Hoodline's Wednesday forecast, with the warmup now extending into early next week.
Halloween Weekend Turns Hotter
Friday should be mostly sunny with a high near 92, followed by a mostly sunny Halloween Saturday topping out around 91 degrees. Friday night will be mostly clear with a low near 72, while Saturday night stays mostly clear near 72. In other words, costumes may need more attention to sunscreen than sweaters.
Sunday looks much the same, with mostly sunny skies and a high near 92. The warm stretch peaks Monday at about 93 degrees before Tuesday cools slightly to around 91, with a slight chance of showers or thunderstorms arriving Tuesday night. Anyone planning outdoor events should expect a hot afternoon and keep water close, especially during the weekend.
Coastal Travelers Should Watch Thursday Night Tides
A Coastal Flood Statement remains in effect for the Lower Texas Coast through Friday morning, with minor flooding possible near high tide Thursday night. The statement does not apply to inland McAllen, but it could matter for residents heading toward South Padre Island, Port Isabel or other beaches. The broader coastal forecast calls for gentle to moderate onshore winds and mostly slight seas into the weekend.
By Wednesday, the forecast calls for sunny skies and a high near 86 degrees after a cooler Tuesday night. For McAllen, the main story is a dry, increasingly hot Halloween weekend followed by a modest cooldown and a better chance of showers late Tuesday.
