Waters · United States
Au Gres River fishing report
Updated Wednesday, October 21, 2026 · refreshed automatically through the day
A small, slow river reaching Saginaw Bay at the town of Au Gres, where the harbour and river mouth are as important as the river itself. Steelhead run it from autumn to spring, and walleye and perch work the mouth in season.
Today's report: excellent (91/100)
Walleye is the most promising species on Au Gres River today. Water temperature is around 49°F (9.6°C) and barometric pressure is falling. Gauge AU GRES RIVER AT S MACKINAW RD NR AU GRES, MI shows the water level steady.
Au Gres River water temperature and flow
- Discharge: 42 cfs (1.2 m³/s) — down 3% over 24 hours
- Level trend: steady
Measured at gauge AU GRES RIVER AT S MACKINAW RD NR AU GRES, MI · reading 13 min ago. Published by the national hydrological service, not estimated by us.
Best time to fish today
- 4:00 PM–6:00 PM local time — score 86/100
- 9:00 PM–11:00 PM local time — score 91/100
- 11:00 AM–1:00 PM local time — score 81/100
3-day outlook by species
| Species | Wednesday, Oct 21 | Thursday, Oct 22 | Friday, Oct 23 |
|---|---|---|---|
| Steelhead | 72 — good | 73 — good | 71 — good |
| Walleye | 91 — excellent | 81 — excellent | 87 — excellent |
| Yellow Perch | 85 — excellent | 84 — excellent | 85 — excellent |
Why this score
Cast & Scan uses a deterministic, published scoring model — no black box. The strongest influences on today's Au Gres River rating:
- water temperature: helping (+1)
- pressure trend: helping (+1)
- light: helping (+1)
- cloud cover: helping (+1)
- season: helping (+1)
- precipitation: helping (+0.9)
Forecast computed Wed, 21 Oct 2026 16:57:40 GMT · data: Open-Meteo + gauge AU GRES RIVER AT S MACKINAW RD NR AU GRES, MI · refreshed automatically through the day · see our published accuracy
Winter fishing on Au Gres River
In winter the Au Gres is mostly about steelhead in the lower river and ice fishing on Saginaw Bay off the river mouth. The river is small and slow, so it freezes readily. When it does, the action moves to the bay ice for walleye and perch. Bay ice off Au Gres is wind-driven and can break away from shore, so check local ice reports every time.
Seasons, closed sections and permits are set by the state and change. Check the current regulations before a winter trip, and never trust shelf ice or a forecast for your safety.
Wondering how this stacks up against the apps you already know? Cast & Scan vs Fishbrain vs BassForecast — an honest comparison, including where they beat us.
Read before you go
More steelhead waters
- Salmon River (Pulaski) — New York, USA
- American River (Fair Oaks) — California, USA
- Au Sable River (Foote Dam) — Michigan, USA
- Black River (Elyria) — Ohio, USA
- Bois Brule River — Wisconsin, USA
Nearby waters
- Saginaw Bay — Michigan, USA (16 mi away)
- Rifle River (Sterling) — Michigan, USA (17 mi away)
- Au Sable River (Foote Dam) — Michigan, USA (27 mi away)
- Au Sable River (Mio) — Michigan, USA (46 mi away)
- Muskegon River (Croton) — Michigan, USA (108 mi away)
- Manistee River (Tippy Dam) — Michigan, USA (112 mi away)