7-Day Zone Forecast for Willacy Island (Text-Only)
NWS Forecast for: Willacy Island
Issued by: National Weather Service Brownsville, TX
Last Update: 127 AM CDT Fri Aug 28 2026
Print


Rest Of Tonight: Mostly clear. Near steady temperature in the lower 80s. South winds 5 to 10 mph.

Friday: Sunny with highs in the lower 90s. Southeast winds around 5 mph, becoming east 10 to 15 mph in the afternoon. Heat index values up to 109.

Friday Night: Mostly clear. Humid with lows in the lower 80s. Southeast winds 5 to 10 mph. 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 5 to 10 mph. Heat index values up to 106 early in the evening.

Sunday: Sunny. Highs in the mid 90s. 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

Visit your local NWS office at: https://www.weather.gov/bro