Mad Fishing Forecast
Fly fishers plan Ohio trips on the Mad because it stacks credible wading access, recognizable insect cycles, and trout that respond when flows align. Expect classic freestone rhythm: push during stable or dropping flows after fronts, then back off when the river spikes and color returns in 24–48 hours. River-specific intel: The Mad River is Ohio's premier trout stream, spring-fed limestone water that supports wild brown trout and stocked rainbows. USGS gauge 04208000 tracks live flow and temperature for planning wade or float days.
Constant 78°F water flows out of the bottom-release dam and into the Mad at 306 CFS CFS. Expect a 6/10 window. Top pick: a Cicada.
Open year-round
Ohio has no closed trout season. Year-round
Forecast and on-page guide updated September 8, 2026 (UTC). Open the app for hourly conditions.
Today's Fishing Conditions
Fair
Updated 6:02 PM
78°F
306 CFS
4 AM - 6 AM
Cicada
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Quick Facts
Rainbow Trout, Brown Trout, and Steelhead
freestone
54°F - 64°F
What Makes the Mad Unique?
Signature hatch or window
BWO (Mayfly) is a headline hatch to watch in September. Peak activity often tracks 42–55°F water temps.
Distinctive access
West Liberty: Upper river access.
Rules anglers miss
Catch-and-release sections exist.
September Fishing Tactics
Primary Targets
Recommended Tactics
Fall fishing improves. BWOs return, browns become aggressive.
September Hatches
BWO
Mayfly
Spring and fall on cloudy days
Caddis
Caddis
Evening hatches throughout season
Trico
Mayfly
Early morning spinner falls
Hopper
Terrestrial
Summer terrestrial fishing
Isonychia
Mayfly
Slate Drake, evening hatches
October Caddis
Caddis
Large fall caddis
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 32-38°F | Nymphing, Streamers, Limited |
| February | 32-40°F | Nymphing, Streamers, Limited |
| March | 36-46°F | Dry Flies, Hendricksons, Caddis |
| April | 44-54°F | Dry Flies, Hendricksons, Caddis |
| May | 52-62°F | Dry Flies, Hendricksons, Caddis |
| June | 58-68°F | Hex, Terrestrials, Tricos |
| July | 62-70°F | Hex, Terrestrials, Tricos |
| August | 62-68°F | Hex, Terrestrials, Tricos |
| September(Now) | 54-64°F | Streamers, Egg Patterns, BWOs |
| October | 46-56°F | Streamers, Egg Patterns, BWOs |
| November | 38-46°F | Streamers, Egg Patterns, BWOs |
| December | 32-38°F | Nymphing, Streamers, Limited |
Spawning Seasons
Please respect spawning fish and their redds. Avoid fishing over actively spawning trout.
Brown Trout
Spawn months: October, November
Night spawning common. Males become very dark with pronounced kype during spawn.
Rainbow Trout
Spawn months: March, April
Resident rainbow trout spawn in smaller tributaries and tend to build smaller redds than steelhead.
Steelhead
Spawn months: March, April, May
Spring-run steelhead are particularly vulnerable during spawning. Avoid wading in gravel runs during March-May. Anadromous form of rainbow trout.
Access Points & Parking for Mad
West Liberty
Upper river access.
Springfield
Urban access through the city.
Champaign County
Middle river access.
Dayton
Lower river near the city.
How to Fish Mad: Tips & Tactics
The Mad River is Ohio's premier trout stream, spring-fed limestone water that supports wild brown trout and stocked rainbows.
Best Times of Day
Morning and evening are most productive. Spring and fall offer excellent conditions. Summer can be productive with careful approach.
Recommended Techniques
Spring creek techniques work well. Match the diverse hatches. Light tippets and accurate casts. Wade quietly.
Water Conditions
Spring-fed limestone creates stable temperatures. Clear water demands stealth. The river flows through varied landscapes.
Fly Selection
Sulphur and BWO patterns essential. Scuds and sowbugs year-round. Caddis patterns in summer.
When is the Best Time to Fish Mad?
Spring
Excellent hatches - Sulphurs, Hendricksons, caddis.
Summer
Fish early and late. Terrestrials become important.
Fall
Brown trout become active. Great conditions.
Winter
Spring-fed water stays fishable. Midge patterns.
Recommended Equipment for Mad
Rod
8 to 9-foot, 4 or 5-weight.
Line
Floating line for most fishing.
Leader & Tippet
9-12 foot leaders, 5X-6X tippet.
Waders
Breathable waders. Careful wading.
Essential Flies
Mad Fishing Regulations
Season
Check Ohio DNR for current regulations.
Limits
Trout limits apply. Catch-and-release areas.
Special Regulations
Catch-and-release sections exist.
Bait Restrictions
Check by section.
Notes
Wild brown trout - practice catch-and-release.
Always verify current regulations with Ohio fish and wildlife agency before fishing. Regulations can change annually.
Fly Shops & Guides Near Mad
Local Fly Shops
- Mad River Outfitters - Dayton
- Orvis Dayton
- Great Miami Outfitters
Guide Services
- Mad River Guide Service
- Ohio Fly Fishing
- Midwest Trout Guides
Optimal Fishing Conditions
Optimal Flow
100 - 250 CFS
Best fishing conditions
Optimal Water Temperature
50° - 65°F
Ideal for active trout
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Other Ohio Trout Rivers
Mad — frequently asked questions
When is the best time to fish the Mad?
Fall fishing improves. BWOs return, browns become aggressive.
What flies should I bring to the Mad?
For the Mad (freestone), carry: Sulphur, BWO, Scud, Elk Hair Caddis, Pheasant Tail.
What water temperature is best for trout on the Mad?
On the Mad, trout hold between 50° and 65°F. In summer, expect temps to swing with air temperature — fish early.
Do I need a fishing license for the Mad?
Yes — you need a valid Ohio fishing license to fish the Mad. Local season: Check Ohio DNR for current regulations.. Daily limit: Trout limits apply. Catch-and-release areas..
What hatches should I watch for on the Mad in September?
BWO is the signature hatch on the Mad in September. Match size and adjust leader size to 5X-6X. The fish key in on the emergence during low-light hours, so plan to be on the water at first light.
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