Can you swim here today?
Lostine River
Oregon · River
Use caution — an official advisory is in effect
Use cautionAs of August 21, 2026, the water temperature at Lostine River is 77°F (25°C), measured by USGS gauge 13331500, 15.7 miles away.
Use caution — an official advisory is in effect: a Heat Advisory is in effect for Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon and other areas.
- A Heat Advisory is in effect for Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon and other areas. — NWS Pendleton OR
- Water temperature is 77°F, within the comfortable 70–86°F range. — USGS gauge 13331500, as of Aug 21, 2:00 PM gauge-local time
- Flow is below the 25th percentile for Aug 21 (median 104 ft³/s over 61 years). — USGS daily streamflow statistics, as of Aug 21, 2:00 PM gauge-local time
Flow is low for this date — below the 25th percentile for Aug 21 (median 104 ft³/s over 61 years).
No official beach-advisory feed for Oregon yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge MINAM RIVER AT MINAM, OR (15.7 mi away), as of Aug 21, 2:00 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.