Recent flow
RiverReports gauge

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Photo: Unknown author Unknown author Opens in a new tab. · Public domain
Flow is high for this time of year.
Fish from the bank. Use stable banks and protected edges. Check footing and current.
Rating updatedRiver local time:
USGS shows 257 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1937-2025, 89 readings) show a median near 129 cfs and the upper quartile near 231 cfs; today's flow is high for the date. Fishable water may exist, but do not rate it highly without a safe access, clarity, and wading or boat plan.
NWS air forecast near
This is an air forecast, not a river-temperature reading.
RiverReports gauge

Showing the available RiverReports chart while the current structured flow series loads. Check the chart on RiverReports Opens in a new tab.
Partly Cloudy
The National Weather Service forecast is temporarily unavailable.
RiverReports gauge: River Raisin at Monroe
Seasonal starting points, not a live hatch report. Match what you see on the water.
Also try slider, damselfly nymph
Each fly name opens its matching Fly Box guide.
The Raisin fishes best when flows are stable and clear enough to read current seams, bridge structure, and rocky banks. After heavy rain, focus on safety and water quality before fishing.
Fish poppers early and late, then switch to crayfish and baitfish around structure.
Avoid unsafe wading and use larger dark streamers near banks only where access is safe.
Sight fish carp and lead smallmouth with smaller crayfish patterns.
Check water quality, debris, and access before wet wading.
These scores compare the risks of wading, bank fishing, and floating.
Wading is the most sensitive plan today. Use protected edges only, avoid crossings, and downgrade quickly if clarity or current feels wrong.
Bank and edge fishing is the safer default when water is high, pushy, or not fully verified.
This report does not recommend floating this reach.
Is Raisin River worth the trip today? Check flow, weather, hatches, access, and rules for Michigan before you go.
The Raisin is a southeast Michigan warmwater river, not a trout destination. Use the Monroe flow, check recent storms and fish-advisory guidance, then fish smallmouth and mixed warmwater structure.
USGS shows 257 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1937-2025, 89 readings) show a median near 129 cfs and the upper quartile near 231 cfs; today's flow is high for the date. Fishable water may exist, but do not rate it highly without a safe access, clarity, and wading or boat plan.
Bank / edge: Bank and edge fishing is the safer default when water is high, pushy, or not fully verified.
Fall: Cooling water and baitfish movement help streamer fishing.
The current NWS air forecast is about 60F, and the next 24-hour high reaches about 82F. Partly Cloudy.
No active NWS alert was returned for this forecast point.
Use RiverReports and USGS 04176500 at Monroe together. Stable summer flow is easiest for smallmouth and carp planning. Storm-swollen or dirty water should move the plan to safer banks, park scouting, or another river.
Skip wading when recent storms have raised or dirtied the river, when public access or parking is unclear, when water-contact risk is questionable, or when fish-consumption guidance changes the goal of the day.
Start with the Monroe flow and the chosen park or access point. Then decide whether the day is smallmouth structure, carp edges, or a quick bank-scout rather than trying to fish the whole river.
If the Raisin is high, dirty, or access-limited, compare the Huron River for another southeast Michigan warmwater plan, the Kalamazoo for a larger warmwater system, or the Boardman when colder trout water is the goal.
Use these places as starting points. Open the access link below and check posted signs before you park or enter.
Michigan statewide fishing rules apply, and Michigan Eat Safe Fish guidance should be checked before harvest or consumption from the River Raisin.
Smaller warmwater access and structure scouting.
Town-access context with smallmouth and mixed-species potential.
Lower-river historical and access context near Lake Erie.
Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.
Check what is allowed, where the rule applies, and whether the river is open.
Check the latest river reading and forecast before you leave.
Check public entry points, land rules, and seasonal access changes.
Use these links for stocking, safety, and other local details.
Check what is allowed, where the rule applies, and whether the river is open.
Open the current fish eating advice and check which fish and waters it covers.
Open the current rules and check the river section, season, and special limits.
Check the latest river reading and forecast before you leave.
Open this page and check the latest safety advice before your trip.
Open this river reading to check the latest level, flow, and update time.
Open this river reading to check the latest level, flow, and update time.
Check public entry points, land rules, and seasonal access changes.
Open the land or access page, then check signs before you park or enter.
Use these links for stocking, safety, and other local details.
Open this page for more river information and check when it was last updated.
What was checked: This Raisin River report is maintained from RiverReports and USGS Monroe flow data, Michigan regulation sources, National Park Service access/background context, fish-consumption guidance, weather, media-credit, and southeast Michigan warmwater planning sources.
Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.
First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.
Check the Monroe flow, recent rain, public access, Michigan rules, and Eat Safe Fish guidance.
Statewide Michigan rules apply, and consumption guidance should be checked before harvest.
Yes, but only if you match the reach, season, water temperature, and target species. This page separates trout, migratory, and warmwater plans where that matters.
Bring the hatch-chart flies, a few confidence nymphs, and a backup streamer or warmwater box so you can adjust to flow, clarity, and temperature.
Access is available through towns and public areas, but it is not continuous. Plan the exact reach before driving.