| NWS Forecast for: Willacy Island Issued by: National Weather Service Brownsville, TX Last Update: 1241 PM CDT Fri Aug 28 2026 | |
| This Afternoon: Sunny. Near steady temperature around 90. East winds 10 to 15 mph. Heat index values up to 109. Tonight: Mostly clear. Humid with lows in the lower 80s. Southeast winds 10 to 15 mph, becoming south around 5 mph after midnight. Heat index values up to 106 early. Saturday: Sunny with highs in the lower 90s. Southeast winds around 5 mph, increasing to east 10 to 15 mph in the afternoon. Heat index values up to 108. Saturday Night: Mostly clear. Humid with lows in the lower 80s. Southeast winds 10 to 15 mph. Heat index values up to 106 early in the evening. Sunday: Sunny with highs in the mid 90s. South winds around 5 mph, becoming southeast 10 to 15 mph with gusts up to 20 mph in the afternoon. Heat index values up to 110. Sunday Night: Mostly clear. Lows in the lower 80s. Heat index values up to 105 early in the evening. Monday: Sunny. Highs in the mid 90s. Heat index values up to 110. Monday Night: Mostly clear. Lows in the lower 80s. Heat index values up to 110 early in the evening. Tuesday: Sunny. Highs in the lower 90s. Heat index values up to 110. Tuesday Night: Mostly clear. Lows in the lower 80s. Heat index values up to 105 early. Wednesday: Sunny. Highs in the lower 90s. Heat index values up to 110. Wednesday Night: Mostly clear. Lows in the lower 80s. Heat index values up to 105 early. Thursday: Sunny. Highs in the lower 90s. Heat index values up to 110. | |
| Zone Forecast: Willacy Island | |
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