Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. this week. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England today. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65° N Lon: 96.68° W Elev: 27 ft.

Partly Cloudy

87°F

31°C

Humidity 77%
Wind Speed S 13 mph
Barometer 29.90 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 29 Jul 10:15 am CDT
Detailed forecast for

Coastal Calhoun

Today
Sunny. Highs in the lower 90s. South winds 5 to 10 mph, increasing to 10 to 15 mph this afternoon.
Tonight
Mostly clear in the evening, then becoming partly cloudy. Lows around 80. South winds 10 to 15 mph, diminishing to 5 to 10 mph after midnight.
Thursday
Partly cloudy. Highs in the lower 90s. South winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon.
Thursday Night
Partly cloudy. Lows around 80. South winds 10 to 15 mph, diminishing to 5 to 10 mph after midnight.
Friday
Sunny. Highs in the lower 90s. South winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon.
Friday Night
Mostly clear in the evening, then becoming partly cloudy. Lows around 80.
Saturday
Sunny. Highs in the lower 90s. Heat index values up to 115.
Saturday Night
Mostly clear. Lows in the lower 80s.
Sunday
Partly cloudy. Highs in the lower 90s. Heat index values up to 110.
Sunday Night
Mostly clear. Lows around 80.
Monday
Sunny. Highs in the lower 90s.
Monday Night
Mostly clear. Lows in the lower 80s.
Tuesday
Partly cloudy in the morning, then becoming sunny. Highs in the lower 90s.



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448 AM CDT Wed Jul 29 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database