McAllen is waking up under cloudy, muggy skies Saturday, with temperatures around 72 degrees and rain chances building through the morning. Showers are possible between 8 a.m. and noon, but the bigger concern arrives after noon, when there is a low 20% chance of an isolated afternoon thunderstorm and temperatures top out near 83 before sliding into the upper 70s.
Storm Chances Rise Through Saturday
Rain chances climb from roughly 20% to 30% early in the day to about 50% to 60% through the afternoon, with north-northeast winds around 8 mph. Saturday night stays mostly cloudy and stormy, with a 60% chance of rain and a low near 71.
Sunday Could Bring The Heaviest Rain
Sunday is shaping up as the wettest part of the weekend, with an 80% chance of showers and thunderstorms and a high near 82 before temperatures fall during the afternoon. The latest outlook adds more detail to Friday’s earlier McAllen forecast, placing the greatest concern on Sunday into Sunday night.
Across Deep South Texas, the National Weather Service expects roughly 1.5 to 3 inches of rain Sunday into Sunday night, with isolated pockets of 4 to 5 inches possible. Sunday carries a Slight Risk of excessive rainfall, meaning heavier downpours could overwhelm drainage and produce isolated flash flooding.
Rain Lingers Into Monday
Showers and thunderstorms remain likely Sunday night before easing Monday, when McAllen faces a 50% chance of rain and a high near 78. Another inch of rain could fall in parts of the region Monday, which carries a lower Marginal Risk for excessive rainfall.
No watches or warnings are posted for McAllen, but drivers should avoid flooded roads and allow extra time during the weekend’s heavier downpours. Rain chances drop Monday night and Tuesday, although mostly cloudy skies stick around, with highs near 77 Tuesday and 79 on Veterans Day.
Mostly Sunny By Friday
A slight chance of showers remains possible Wednesday and Thursday, but the pattern gradually settles. Friday is expected to be mostly sunny with a high near 79 and a low around 60, offering a much quieter finish after a soggy start to the week.
