Weekly swim report · August 21, 2026

Texas swim report

On August 21, 2026 the warmest USGS water reading in Texas was 92°F at Trinity Rv at Liberty, TX; 21 water-related NWS hazards are active.

Warmest water

The 5 warmest of 69 sensors reporting a water temperature in Texas today. Station names open the official monitoring page.

#1
Trinity Rv at Liberty, TXUSGS gauge · 1,630 ft³/s
92°F 33°C9 hrs ago
#2
Trinity Rv nr Moss Bluff, TXUSGS gauge
91°F 33°C9 hrs ago
#3
W Fk San Jacinto Rv nr Humble, TXUSGS gauge · 86 ft³/s
91°F 33°C9 hrs ago
#4
Old Rv Cutoff nr Moss Bluff, TXUSGS gauge
91°F 33°C9 hrs ago
#5
Lynchburg Res nr CWA Canal Inflow nr Baytown, TXUSGS gauge
90°F 32°C9 hrs ago

Active hazards in Texas

Alerts cover counties or forecast zones — an alert for an area does not mean every river or beach inside it is affected. Times are local to the issuing office.

CautionExtreme Heat Warning
An Extreme Heat Warning is in effect for Hunt; Hopkins; Van Zandt; Rains.
NWS Fort Worth TX · until Aug 21, 8:00 PM
CautionExtreme Heat Warning
An Extreme Heat Warning is in effect for Montague; Cooke; Young; Jack; Wise; Denton; Collin; Stephens; Palo Pinto; Parker; Tarrant; Dallas; Rockwall; Kaufman; Hood; Somervell; Johnson; Ellis.
NWS Fort Worth TX · until Aug 22, 8:00 PM
CautionExtreme Heat Warning
An Extreme Heat Warning is in effect for Cotton; Clay.
NWS Norman OK · until Aug 21, 9:00 PM
CautionExtreme Heat Warning
An Extreme Heat Warning is in effect for Vernon; Rapides; Avoyelles; Beauregard; Allen; Evangeline; St. Landry; Lafayette; Upper St. Martin; Lower St. Martin; Northern Calcasieu; Northern Jefferson Davis; Northern Acadia; Upper Vermilion; Upper Iberia; Upper St. Mary; Southern Calcasieu; Southern Jefferson Davis; Southern Acadia; Tyler; Hardin; Northern Jasper; Northern Newton; Southern Jasper; Southern Newton; Upper Jefferson; Northern Orange; Lower Jefferson; Southern Orange.
NWS Lake Charles LA · until Aug 21, 8:00 PM
CautionExtreme Heat Warning
An Extreme Heat Warning is in effect for Columbia; Union; Caddo; Bossier; Webster; Claiborne; Lincoln; Union; De Soto; Red River; Bienville; Jackson; Ouachita; Sabine; Natchitoches; Winn; Grant; Caldwell; La Salle; Wood; Upshur; Marion; Smith; Gregg; Harrison; Cherokee; Rusk; Panola; Nacogdoches; Shelby; Angelina; San Augustine; Sabine.
NWS Shreveport LA · until Aug 21, 9:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Llano; Burnet; Williamson; Hays; Travis; Bastrop; Lee; Bexar; Comal; Guadalupe; Caldwell; Fayette; Atascosa; Wilson; Karnes; Gonzales; De Witt; Lavaca.
NWS Austin/San Antonio TX · until Aug 23, 7:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for McMullen; Live Oak; Bee; Goliad; Victoria; Jim Wells; Inland Kleberg; Inland Nueces; Inland San Patricio; Coastal Aransas; Inland Refugio; Inland Calhoun; Coastal Kleberg; Coastal Nueces; Coastal San Patricio; Coastal Refugio; Coastal Calhoun.
NWS Corpus Christi TX · until Aug 21, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Briscoe; Hall; Childress; Motley; Cottle; Dickens; King; Garza; Kent; Stonewall.
NWS Lubbock TX · until Aug 21, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Floyd; Crosby.
NWS Lubbock TX · until Aug 21, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Erath.
NWS Fort Worth TX · until Aug 21, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Grayson; Fannin; Lamar; Delta; Eastland; Comanche; Mills; Hamilton; Lampasas; Coryell; Bell; Milam.
NWS Fort Worth TX · until Aug 22, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Henderson; Navarro; Anderson.
NWS Fort Worth TX · until Aug 22, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Bosque; Hill; Freestone; McLennan; Falls; Limestone; Leon; Robertson.
NWS Fort Worth TX · until Aug 22, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Armstrong; Donley.
NWS Amarillo TX · until Aug 21, 9:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Collingsworth; Palo Duro Canyon.
NWS Amarillo TX · until Aug 21, 9:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Lipscomb; Hutchinson; Roberts; Hemphill; Gray; Wheeler.
NWS Amarillo TX · until Aug 21, 9:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Harmon; Jackson; Tillman; Hardeman; Foard; Wilbarger; Wichita; Knox; Baylor; Archer.
NWS Norman OK · until Aug 21, 9:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Sevier; Howard; Little River; Hempstead; Nevada; Miller; Lafayette; McCurtain; Red River; Bowie; Franklin; Titus; Camp; Morris; Cass.
NWS Shreveport LA · until Aug 22, 8:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Fisher; Nolan; Sterling; Coke; Runnels; Tom Green; Concho; Haskell; Throckmorton; Jones; Shackelford; Taylor; Callahan; Coleman; Brown; McCulloch; San Saba.
NWS San Angelo TX · until Aug 21, 7:00 PM
CautionHeat Advisory
A Heat Advisory is in effect for Houston; Trinity; Madison; Walker; San Jacinto; Polk; Burleson; Brazos; Washington; Grimes; Montgomery; Northern Liberty; Colorado; Austin; Waller; Inland Harris; Chambers; Wharton; Fort Bend; Inland Jackson; Inland Matagorda; Inland Brazoria; Inland Galveston; Southern Liberty; Coastal Harris; Coastal Jackson; Coastal Matagorda; Coastal Brazoria; Coastal Galveston; Matagorda Islands; Brazoria Islands; Galveston Island; Bolivar Peninsula.
NWS Houston/Galveston TX · until Aug 22, 7:00 PM
Heads-upSpecial Weather Statement
A Special Weather Statement is in effect for Zapata; Jim Hogg; Brooks; Inland Kenedy; Starr; Southern Hidalgo; Inland Willacy; Inland Cameron; Coastal Kenedy; Northern Hidalgo; Coastal Willacy; Coastal Cameron.
NWS Brownsville TX

Where to swim in Texas

The most-reviewed, well-rated water destinations in Texas — check each one’s live conditions before you go.

4.7(43,250)

San Antonio River Walk

Park · San Antonio, Texas

Dog-friendly

Iconic area with landscaped walkways, bridges, restaurants, bars, hotels, shops & boat tours.

Can I swim today? →

4.6(7,862)

Woodlawn Lake Park

Park · San Antonio, Texas

Dog-friendly

Relaxed place with a lake, fishing, a trail, picnicking, a pool, sports fields & a playscape.

Can I swim today? →

4.7(5,939)

Mueller Lake Park

Park · Austin, Texas

Dog-friendly

A large lake anchors this park featuring an amphitheater, loop trail & picnic area.

Can I swim today? →

4.7(4,851)

White Rock Lake Park

Park · Dallas, Texas

Green space circling an artificial lake offering trails, boating, picnicking & bird-watching.

Can I swim today? →

4.8(4,151)

River Legacy Parks

City park · Arlington, Texas

1,300-acre park housing miles of hiking & biking trails, picnic areas & a hands-on science center.

Can I swim today? →

4.7(3,587)

Brushy Creek Lake Park

Park · Cedar Park, Texas

Park set around a 38-acre lake with trails, a playground, fishing pier & wildlife viewing area.

Can I swim today? →

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Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.