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Port Lavaca, TX Weather Tomorrow

Find tomorrow's weather forecast for Port Lavaca with an accurate 5 day outlook showing daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Port Lavaca area and around Calhoun county, Texas.
Updated: Sun Oct 25th 2026 6:30 AM CDT
Port Lavaca, TX Weather – 10-25 – Overcast
81° / 71°
Overcast
Port Lavaca is set for overcast with temperatures peaking at 81°F and dipping to 71°F. There might be light rainfall having a 17% chance with an estimated 0in. Wind will be moderate, blowing around 17mph on average and gusts of 27.1mph at 12 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 71% at 8 AM and 47% being its lowest at 2 PM. Barometric pressure is its highest of 30.24inHg at 10 AM, a lowest point of 30.15inHg at 6 PM with an avg 30.19inHg.
Port Lavaca, TX Weather – 10-26 – Scattered Showers
81° / 68°

Weather Tomorrow

Scattered Showers
In Port Lavaca, showers likely at times with highs near 81°F and lows around 68°F. Rainfall predicted to have a 57% chance with an estimated 0.05in. Wind will be moderate, blowing around 17mph on average and gusts of 22.2mph at 8 PM. The humidity will be on the higher side, averaging about 72%, the maximum being 85% at 8 AM and 58% being its lowest at 1 PM. Barometric pressure is its highest of 30.21inHg at 10 AM, a lowest point of 30.08inHg at 6 PM with an avg 30.15inHg.
Port Lavaca, TX Weather – 10-27 – Scattered Showers
80° / 72°
Scattered Showers
Scattered showers are in the forecast for Port Lavaca, with a high of 80°F and a low of 72°F. Rainfall predicted to have a 64% chance with an estimated 0.05in. Wind will be moderate, blowing around 14mph on average and gusts of 21.7mph at 12 AM. The humidity will be on the higher side, averaging about 76%, the maximum being 86% at 4 AM and 61% being its lowest at 1 PM. Barometric pressure is its highest of 30.13inHg at 12 PM, a lowest point of 30.07inHg at 6 PM with an avg 30.1inHg.
Port Lavaca, TX Weather – 10-28 – Scattered Showers
82° / 71°
Scattered Showers
Highs will reach 82°F with lows near 71°F in Port Lavaca, where scattered showers are. The chance of rain is 79% with an estimated 0.39in. Wind will be moderate, blowing around 15mph on average and gusts of 21.3mph at 3 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 91% at 5 AM and 57% being its lowest at 3 PM. Barometric pressure is its highest of 30.15inHg at 11 AM, a lowest point of 30.08inHg at 6 PM with an avg 30.11inHg.
Port Lavaca, TX Weather – 10-29 – Sunny
82° / 70°
Sunny
Port Lavaca is set for sunshine with temperatures peaking at 82°F and dipping to 70°F. There's a very small chance of rainfall, only about 8%. Wind will be moderate, blowing around 15mph on average and gusts of 25.9mph at 3 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 88% at 7 AM and 51% being its lowest at 12 PM. Barometric pressure is its highest of 30.16inHg at 11 AM, a lowest point of 30.05inHg at 4 PM with an avg 30.1inHg.
Port Lavaca, TX Weather – 10-30 – Scattered Showers
78° / 71°
Scattered Showers
Passing showers are in the forecast for Port Lavaca, with a high of 78°F and a low of 71°F. Rainfall predicted to have a 68% chance with an estimated 0.06in. Wind will be moderate, blowing around 11mph on average and gusts of 19.3mph at 10 PM. High humidity with average of 82% is anticipated, the maximum being 91% at 11 PM and 75% being its lowest at 4 PM. Barometric pressure is its highest of 30.07inHg at 12 AM, a lowest point of 29.99inHg at 7 PM with an avg 30.02inHg.

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