Can you swim here today?
Rogers Preserve/Millstone River Preserve
Princeton Junction, New Jersey · Nature preserve
Use caution — flow is well above normal for this date
Use cautionAs of August 22, 2026, the water temperature at Rogers Preserve/Millstone River Preserve is 77°F (25°C), measured by USGS gauge 01401000, 3.9 miles away.
Use caution — flow is well above normal for this date: flow is above the 75th percentile for Aug 22 (median 5 ft³/s over 71 years); fast water is the top river-drowning risk.
- Flow is above the 75th percentile for Aug 22 (median 5 ft³/s over 71 years); fast water is the top river-drowning risk. — USGS daily streamflow statistics, as of Aug 22, 8:30 AM gauge-local time
- Water temperature is 77°F, within the comfortable 70–86°F range. — USGS gauge 01401000, as of Aug 22, 8:30 AM gauge-local time
Flow is high for this date — above the 75th percentile for Aug 22 (median 5 ft³/s over 71 years).
No official beach-advisory feed for New Jersey yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge Stony Brook at Princeton NJ (3.9 mi away), as of Aug 22, 8:30 AM 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.