Weekly swim report · August 21, 2026
Michigan swim report
On August 21, 2026 the warmest USGS water reading in Michigan was 78°F at SAGINAW RIVER AT HOLLAND AVENUE AT SAGINAW, MI; 4 water-related NWS hazards are active.
Warmest water
The 5 warmest of 51 sensors reporting a water temperature in Michigan today. Station names open the official monitoring page.
- #1SAGINAW RIVER AT HOLLAND AVENUE AT SAGINAW, MIUSGS gauge · 71 ft³/s78°F 25°C9 hrs ago
- #2ST. JOSEPH RIVER AT NILES, MIUSGS gauge · 2,740 ft³/s75°F 24°C8 hrs ago
- #3AU SABLE RIVER NEAR AU SABLE, MIUSGS gauge · 984 ft³/s75°F 24°C9 hrs ago
- #475°F 24°C9 hrs ago
- #5AU SABLE RIVER NEAR SIDTOWN, MIUSGS gauge75°F 24°C8 hrs ago
Active hazards in Michigan
Alerts cover counties or forecast zones — an alert for an area does not mean every river or beach inside it is affected. Times are local to the issuing office.
- CautionBeach Hazards Statement
A Beach Hazards Statement is in effect for Mason; Oceana.
NWS Grand Rapids MI · until Aug 21, 8:00 PM
- CautionBeach Hazards Statement
A Beach Hazards Statement is in effect for Southern Schoolcraft.
NWS Marquette MI · until Aug 21, 10:00 PM
- CautionFlood Advisory
A Flood Advisory is in effect for Calhoun, MI.
NWS Grand Rapids MI · until Aug 21, 6:15 PM
- Heads-upSpecial Weather Statement
A Special Weather Statement is in effect for Calhoun.
NWS Grand Rapids MI
Where to swim in Michigan
The most-reviewed, well-rated water destinations in Michigan — check each one’s live conditions before you go.
4.8(5,765)Detroit Riverwalk
Voted Best Riverwalk in the U.S.A., the Detroit International RiverWalk stretches over 3.5 miles along the Detroit River, connecting roughly 100 acres of parks and green spaces. The family- and pet-friendly concrete pathways are open year-round for walking, running, biking, and wheelchair use. Highlights include the Dequindre Cut greenway, Milliken State Park & Harbor, and Ralph C. Wilson Jr. Centennial Park, with waterfront dining and cultural attractions throughout.
4.9(4,946)Sleeping Bear Dunes National Lakeshore
Scalable sandy bluffs sitting 450 feet above Lake Michigan, popular for panoramic views.
4.4(4,265)Bay City State Park
This destination for a range of activities, including biking, fishing & hiking, also has campsites.
4.7(3,798)Island Lake Recreation Area
Sprawling 4,000-acre park with meadows & mature woodlands features a hot air balloon launch point.
4.7(2,702)North Higgins Lake State Park
Lakeside park with a swimming beach plus opportunities for fishing, hiking, camping & picnicking.
4.9(2,651)Lake of the Clouds Overlook
One of Michigan's most photographed locations, the Lake of the Clouds Overlook in Porcupine Mountains Wilderness State Park offers a sweeping 180-degree view of the pristine lake nestled in the Upper Peninsula wilderness. Accessible via an extensive boardwalk system (including wheelchair-accessible ramps), the overlook is especially stunning during fall foliage season. The parking area serves as a trailhead for the Big Carp River, Escarpment, and Mirror Lake trails, with a steep path leading down to the lake itself.
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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.