Port Lavaca, TX 77979 Weather

Calhoun County11:28 PM CDT28.60°N, 96.63°W

Current conditions

Clear
72°
Clear
Feels like 73°
High 83° Thursday·Low 67° tonight
WindE 5 mph
Humidity86%
Dew point68°
Pressure30.11 inHg
Visibility10.0 mi
Cloud cover35%
UV index0 Low
Sunrise7:32 AM
Sunset6:52 PM

Observed at Port Lavaca - Calhoun County Airport · 1 hr ago

Forecast

10-day

  • Tonight

    Partly cloudy, with a low around 67. East northeast wind 2 to 7 mph.

  • Thursday

    Sunny, with a high near 83. Heat index values as high as 84. East northeast wind 5 to 10 mph.

  • Thursday Night

    Mostly clear, with a low around 65. East wind 2 to 10 mph.

National Weather Service forecast updated 7 hrs ago.

Hourly

Hourly forecast
  1. Now Partly Cloudy 73°
  2. Thu12 AM Partly Cloudy 73°
  3. 1 AM Partly Cloudy 72°
  4. 2 AM Partly Cloudy 72°
  5. 3 AM Partly Cloudy 71°
  6. 4 AM Partly Cloudy 69°
  7. 5 AM Partly Cloudy 69°
  8. 6 AM Mostly Sunny 68°
  9. 7 AM Sunny 67°
  10. 8 AM Sunny 68°
  11. 9 AM Sunny 70°
  12. 10 AM Sunny 75°
  13. 11 AM Sunny 78°
  14. 12 PM Sunny 80°
  15. 1 PM Sunny 82°
  16. 2 PM Sunny 82°
  17. 3 PM Sunny 83°
  18. 4 PM Sunny 81°
  19. 5 PM Sunny 80°
  20. 6 PM Clear 79°
  21. 7 PM Mostly Clear 75°
  22. 8 PM Mostly Clear 73°
  23. 9 PM Mostly Clear 73°
  24. 10 PM Mostly Clear 72°

10-day forecast

Details
  1. TonightOct 21 Partly Cloudy Partly Cloudy67°
  2. ThuOct 22 Sunny Sunny65°83°
  3. FriOct 23 Sunny Sunny70°83°
  4. SatOct 24 Sunny Sunny71°82°
  5. SunOct 25 Partly Sunny Partly Sunny68°79°
  6. MonOct 26 Mostly Sunny then Slight Chance Showers And Thunderstorms Mostly Sunny then Slight Chance Showers And Thunderstorms15%68°79°
  7. TueOct 27 Slight Chance Showers And Thunderstorms Slight Chance Showers And Thunderstorms21%66°79°
  8. WedOct 28 Sunny Sunny12%79°
  9. ThuOct 29 Mostly sunny Mostly sunny0.02 in68°80°
  10. FriOct 30 Showers Showers0.07 in73°78°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news in Texas

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Air quality

38
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • WedModerate
  • ThuModerate
  • FriModerate

Victoria, TX reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:32 AM
Sunset 6:52 PM
Daylight 11 h 20 min (−1 min 36 s tomorrow)
Waxing Gibbous · 82% lit
Moonrise 4:08 PM Moonset 3:03 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low81° / 64°
Record high90° (2019)
Record low48° (2022)
Wettest0.83 in (1926)
Month to date3.07 in (normal 2.29 in)

Austwell, records since 1897. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in CRP, issued 10 hrs ago

Key Messages

Issued at 1238 PM CDT Wed Oct 21 2026

- Low to moderate (30-60%) rain chances tonight, mainly along the coast and Coastal Bend. Highest chances will be across the coastal waters.

- Minor coastal flooding will remain possible through the week.

Discussion

Issued at 1206 PM CDT Wed Oct 21 2026

Mainly quiet weather will continue across South Texas this week. A weak disturbance over the western Gulf will bring a chance for showers, and possibly a thunderstorm, tonight over the coast and coastal waters. This feature will move inland to the southwest Thursday with a low chance for showers across the southern portion of the CWA. A mid to upper level ridge will build over the region during the end of the week keeping the weather dry through the weekend. Temperatures will continue to be just a bit above normal with highs in the 80s. Low temperatures Thursday morning will be a few degrees warmer than the last couple of days with more cloudiness from the westward moving disturbance. Clearer skies will allow for cooler mornings over the weekend. Another weak disturbance from the Gulf will bring a chance for rain next Monday with better chances over the Coastal Plains. Tuesday models are showing a frontal boundary moving through North Texas with an expansive area of rain across the eastern half of the state. Still a lot of uncertainty.

Guidance continues to show elevated tidal levels and the potential for minor coastal flooding continues through the week.

Aviation

(18Z TAFS) Issued at 1206 PM CDT Wed Oct 21 2026

A bit of a tricky forecast as a weak disturbance over the Gulf may bring some -SHRA into the picture at CRP and ALI later this afternoon through the overnight hours. Opted to continue with PROB30 groups to account for the uncertainty. Otherwise, some MVFR stratus which could be a bit wind-shield wiper like, with back and forth to VFR/MVFR is expected overnight, primarily along the coast, but some of those low clouds are expected to work inland for a short time tomorrow morning. Winds should generally remain less than 10 kts, but a brief gust up over 15 kts is possible, primarily at CRP. Winds will generally remain east to east-southeasterly at less than 10 kts.

Marine

Issued at 1206 PM CDT Wed Oct 21 2026

Mainly a gentle to moderate easterly flow can be expected through the period with winds shifting more onshore by this weekend. A moderate to high rain chance will continue tonight. Additional rain chances will return next Monday.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.