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As of 03:51 CDT

Weather in Port Lavaca, TX

84°Current weather

Port Lavaca, Sunday, 9 August, 03:51

Clear. Feels like 97°. High 91°, low 80°.

Pressure29.97 inHg
Wind6.3 mph SE
Humidity89%
Visibility6.2 mi
Dew point80°
Mon, 1090° / 77°0Overcast
90 °Overcast

Port Lavaca, Monday, 10 August

Overcast. High 90°, low 77°.

Pressure30.03 inHg
Wind11.4 mph S
Humidity53%
Visibility6.2 mi
Dew point72°
Tue, 1193° / 81°0Clear
93 °Clear

Port Lavaca, Tuesday, 11 August

Clear. High 93°, low 81°.

Pressure30.03 inHg
Wind14.5 mph SE
Humidity53%
Visibility6.2 mi
Dew point73°
Wed, 1293° / 81°0Clear
93 °Clear

Port Lavaca, Wednesday, 12 August

Clear. High 93°, low 81°.

Pressure29.97 inHg
Wind16.9 mph S
Humidity52%
Visibility6.2 mi
Dew point72°
Thu, 1393° / 81°0Mostly clear
93 °Mostly clear

Port Lavaca, Thursday, 13 August

Mostly clear. High 93°, low 81°.

Pressure29.94 inHg
Wind17.2 mph S
Humidity53%
Visibility—
Dew point72°
Fri, 1493° / 81°0Overcast
93 °Overcast

Port Lavaca, Friday, 14 August

Overcast. High 93°, low 81°.

Pressure30.03 inHg
Wind15.9 mph SE
Humidity56%
Visibility—
Dew point73°
Sat, 1594° / 81°0Overcast
94 °Overcast

Port Lavaca, Saturday, 15 August

Overcast. High 94°, low 81°.

Pressure30.12 inHg
Wind14.9 mph SE
Humidity52%
Visibility—
Dew point72°
Sun, 1695° / 80°0Mostly clear
95 °Mostly clear

Port Lavaca, Sunday, 16 August

Mostly clear. High 95°, low 80°.

Pressure30.12 inHg
Wind14.6 mph SE
Humidity46%
Visibility—
Dew point69°
Mon, 1795° / 77°0Clear
95 °Clear

Port Lavaca, Monday, 17 August

Clear. High 95°, low 77°.

Pressure30.06 inHg
Wind13 mph SE
Humidity37%
Visibility—
Dew point62°
Tue, 1895° / 78°0Mostly clear
95 °Mostly clear

Port Lavaca, Tuesday, 18 August

Mostly clear. High 95°, low 78°.

Pressure30.00 inHg
Wind13.3 mph S
Humidity44%
Visibility—
Dew point68°
Wed, 1996° / 80°0Clear
96 °Clear

Port Lavaca, Wednesday, 19 August

Clear. High 96°, low 80°.

Pressure30.00 inHg
Wind13.9 mph S
Humidity43%
Visibility—
Dew point68°
Thu, 2098° / 79°0Clear
98 °Clear

Port Lavaca, Thursday, 20 August

Clear. High 98°, low 79°.

Pressure29.97 inHg
Wind13.7 mph SE
Humidity37%
Visibility—
Dew point65°
Fri, 2198° / 80°0.03Light rain
98 °Light rain

Port Lavaca, Friday, 21 August

Light rain. High 98°, low 80°.

Pressure29.94 inHg
Wind14.8 mph SE
Humidity40%
Visibility—
Dew point67°
Sat, 2295° / 79°0Clear
95 °Clear

Port Lavaca, Saturday, 22 August

Clear. High 95°, low 79°.

Pressure29.91 inHg
Wind16.9 mph S
Humidity44%
Visibility—
Dew point67°
Sun, 2394° / 80°0.01Light rain
94 °Light rain

Port Lavaca, Sunday, 23 August

Light rain. High 94°, low 80°.

Pressure29.91 inHg
Wind15.5 mph SE
Humidity44%
Visibility—
Dew point67°
Mon, 2495° / 79°0Clear
95 °Clear

Port Lavaca, Monday, 24 August

Clear. High 95°, low 79°.

Pressure29.94 inHg
Wind16.4 mph S
Humidity44%
Visibility—
Dew point68°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Port Lavaca, TX are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Port Lavaca, TX since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.