Can you swim here today?
Laurel Run Reservoir
St Marys, Pennsylvania · Lake
Use caution — flow is well above normal for this date
Use cautionAs of August 23, 2026, the water temperature at Laurel Run Reservoir is 65°F (18°C), measured by USGS gauge 03028500, 6.5 miles away.
Use caution — flow is well above normal for this date: water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry. — USGS gauge 03028500, as of Aug 23, 6:45 PM gauge-local time
- Flow is above the 75th percentile for Aug 23 (median 217 ft³/s over 54 years); fast water is the top river-drowning risk. — USGS daily streamflow statistics, as of Aug 23, 6:45 PM gauge-local time
- Heavy rain today can raise bacteria levels near outfalls and river mouths.
Flow is high for this date — above the 75th percentile for Aug 23 (median 217 ft³/s over 54 years).
No official beach-advisory feed for Pennsylvania yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge Clarion River at Johnsonburg, PA (6.5 mi away), as of Aug 23, 6:45 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.