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Olivia, TX Weather Forecast
Olivia, TX Weather Forecast Date: 123 AM CDT Mon Sep 07 2026
The area/counties/county of: Coastal Calhoun, including the cities of: Seadrift, Port Lavaca, and Port O Connor.or toggle through each period.
Today... Sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southwest winds around 5 mph, increasing to southeast this afternoon. Chance of rain 20%. Heat index values up to 110.
Tonight... Mostly clear. Lows in the lower 80s. South winds 5 to 10 mph.
Tuesday... Sunny. Highs in the lower 90s. South winds around 5 mph, increasing to southeast in the afternoon. Heat index values up to 110.
Tuesday Night... Mostly clear. Lows in the lower 80s. Southeast winds 5 to 10 mph.
Wednesday... Sunny in the morning, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the lower 90s. Southeast winds around 5 mph, increasing to 5 to 10 mph in the afternoon. Chance of rain 50%.
Wednesday Night... Mostly clear. Lows around 80.
Thursday... Partly cloudy with a chance of showers and thunderstorms in the morning, then sunny in the afternoon. Highs in the lower 90s. Chance of rain 30%.
Thursday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 80s.
Friday... Sunny. Highs in the lower 90s. Heat index values up to 110.
Friday Night... Mostly clear. Lows in the lower 80s.
Saturday... Sunny. Highs in the lower 90s. Heat index values up to 110.
Saturday Night... Mostly clear. Lows in the lower 80s.
POP = Probability of Precipitation
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