Weekly swim report · August 21, 2026
Iowa swim report
On August 21, 2026 the warmest USGS water reading in Iowa was 80°F at Beaver Slough at 3rd Street at Clinton, IA; no water-related NWS hazards are active.
Warmest water
The 5 warmest of 13 sensors reporting a water temperature in Iowa today. Station names open the official monitoring page.
- #180°F 27°C9 hrs ago
- #2Des Moines River at Ottumwa, IAUSGS gauge · 11,000 ft³/s79°F 26°C8 hrs ago
- #3Des Moines River at Keosauqua, IAUSGS gauge · 11,500 ft³/s79°F 26°C9 hrs ago
- #4Mississippi River at Clinton, IAUSGS gauge · 36,600 ft³/s79°F 26°C9 hrs ago
- #5Mississippi River at Keokuk, IAUSGS gauge78°F 26°C8 hrs ago
Active hazards in Iowa
No water-related NWS hazards are active in Iowa right now. Checked live against the National Weather Service alert feed.
Where to swim in Iowa
The most-reviewed, well-rated water destinations in Iowa — check each one’s live conditions before you go.
Gray's Lake Park
167-acre park featuring a 1.9-mi. lighted walking path around a lake with small boat rentals.
4.5(757)Clear Lake State Park
Park covering 55 acres, with a beach, picnic grounds, a historic lodge, camping & lake activities.
4.7(625)Copper Creek Lake Park
Temp ClosedLarge park with a lake for fishing & boating, a playground, a picnic/grill pavilion & forest trails.
4.6(294)North River Valley Park
Public park offering rental picnic pavilions, BBQ grills, horseshoes pits & sand volleyball courts.
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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.

