Can you swim here today?
Walnut Creek
Texas · River
Use caution — an official advisory is in effect
Use cautionAs of August 21, 2026, USGS gauge 08158200, 2.6 miles away, reports a streamflow of 2,640 ft³/s near Walnut Creek but no water-temperature reading.
Use caution — an official advisory is in effect: live streamflow is available but no water-temperature sensor is nearby.
- Live streamflow is available but no water-temperature sensor is nearby. — USGS gauge 08158200, as of Aug 21, 5:15 PM gauge-local time
- A Heat Advisory is in effect for Llano; Burnet; Williamson; Hays; Travis; Bastrop; Lee; Bexar; Comal; Guadalupe; Caldwell; Fayette; Atascosa and other areas. — NWS Austin/San Antonio TX
- Flow is above the 75th percentile for Aug 21 (median 0 ft³/s over 19 years); fast water is the top river-drowning risk. — USGS daily streamflow statistics, as of Aug 21, 5:15 PM gauge-local time
- No official beach advisory posted (Texas Beach Watch (Texas GLO) checked).
Flow is high for this date — above the 75th percentile for Aug 21 (median 0 ft³/s over 19 years).
Official advisories
Checked against Texas Beach Watch (Texas GLO) — no advisory posted.
Live, provisional data from USGS gauge Walnut Ck at Dessau Rd, Austin, TX (2.6 mi away), as of Aug 21, 5:15 PM gauge-local time.
Before you get in
- Never swim alone — and keep weaker swimmers within arm's reach.
- Scout depth and entry/exit points before you get in.
- Read the current: avoid fast, rising, or murky water.
- Check the forecast — get out well before storms or lightning.
- Obey posted signs, flags, and lifeguard guidance.
Read next
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.