Big Fishing Creek Fishing Forecast
The Big Fishing Creek anchors Pennsylvania trout culture for anglers who want a forecast that respects real hydrology—not a generic “fish today” badge. Species mix centers on brown trout, brook trout, and rainbow trout, with tactics shifting from weighted nymphs in cold water to dries and terrestrials as afternoons warm during April through October. Because it is not a manicured park stretch, the Big Fishing Creek rewards map work, respectful access, and leaders sized for the clarity you will actually see. USGS gauge 01548030 tracks live flow and temperature for planning wade or float days.
Today's Big Fishing Creek is reading 56°F and 200 CFS. That's a 7/10 day on the water. Top pick: a Stimulator.
Open Apr 4 — Dec 31 (check section regs)
Special regulation sections open year-round. C&R fly fishing only sections. Check specific section designations
Forecast and on-page guide updated September 8, 2026 (UTC). Open the app for hourly conditions.
Today's Fishing Conditions
Good
Updated 3:42 PM
56°F
200 CFS
4 AM - 6 AM
Stimulator
Free forever • No signup required • Hourly updates
September Hatches
Slate Drake
Mayfly
Dusk Isonychia hatch.
BWO
Mayfly
Spring and fall BWO. Overcast.
Caddis
Caddis
Evening caddis through summer.
Ant
Terrestrial
Flying ant falls. Terrestrial season.
September Fishing Tactics
Primary Targets
Recommended Tactics
Fall fishing excellent. BWOs return.
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 32-38°F | Midges, Deep nymphs |
| February | 32-40°F | Midges, Small nymphs |
| March | 36-45°F | Early BWOs, Quill Gordon nymphs |
| April | 42-52°F | Hendrickson, BWOs, Quill Gordon |
| May | 50-60°F | Sulphurs, March Browns, Caddis |
| June | 55-68°F | Green Drakes, Sulphurs, Slate Drakes |
| July | 60-72°F | Tricos, Terrestrials, Light Cahills |
| August | 60-74°F | Tricos, Terrestrials, White Fly |
| September(Now) | 55-65°F | BWOs, Slate Drakes, Terrestrials |
| October | 48-58°F | BWOs, Slate Drakes, Streamers |
| November | 40-48°F | BWOs, Streamers, Egg patterns |
| December | 32-40°F | Midges, Deep nymphs |
Quick Facts
Brown Trout, Brook Trout, and Rainbow Trout
freestone
55°F - 65°F
What Makes the Big Fishing Creek Unique?
Signature hatch or window
Slate Drake (Mayfly) is a headline hatch to watch in September. Peak activity often tracks 58–70°F water temps.
Distinctive access
Lamar: Upper creek access.
Rules anglers miss
Catch-and-release water exists.
When is the Best Time to Fish Big Fishing Creek?
Spring
Excellent hatches - Sulphurs, Hendricksons.
Summer
Fish early and late. Terrestrials important.
Fall
Brown trout become aggressive.
Winter
Spring-fed water fishable. Midge patterns.
Recommended Equipment for Big Fishing Creek
Rod
8 to 9-foot, 4 or 5-weight.
Line
Floating line for dry flies.
Leader & Tippet
9-12 foot leaders, 5X-6X tippet.
Waders
Breathable waders. Careful approach.
Essential Flies
How to Fish Big Fishing Creek: Tips & Tactics
Big Fishing Creek is one of Pennsylvania's finest limestone spring creeks, offering excellent fishing for wild brown trout.
Best Times of Day
Spring hatches are excellent - Sulphurs, Hendricksons, caddis. Summer fishing is productive early and late. Fall brings aggressive browns.
Recommended Techniques
Spring creek techniques work well. Match the hatches carefully. Light tippets and accurate casts.
Water Conditions
Spring-fed limestone creates stable temperatures. Clear water demands stealth. Beautiful Pennsylvania farmland setting.
Fly Selection
Sulphur and Hendrickson patterns essential. Scuds for subsurface. Terrestrials in summer.
Access Points & Parking for Big Fishing Creek
Lamar
Upper creek access.
Tylersville
Quality fishing access.
Mackeyville
Mid-creek access.
Mill Hall
Lower creek access.
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.
Brook Trout
Spawn months: September, October
Males develop vibrant red bellies and white-edged fins during spawning. Early fall spawners.
Optimal Fishing Conditions
Optimal Flow
80 - 200 CFS
Best fishing conditions
Optimal Water Temperature
50° - 65°F
Ideal for active trout
Big Fishing Creek Fishing Regulations
Season
Check PA Fish and Boat Commission.
Limits
Special regulations in some sections.
Special Regulations
Catch-and-release water exists.
Bait Restrictions
Artificial only in special regulation areas.
Notes
Quality spring creek - practice catch-and-release.
Always verify current regulations with Pennsylvania fish and wildlife agency before fishing. Regulations can change annually.
Fly Shops & Guides Near Big Fishing Creek
Local Fly Shops
- Spruce Creek Outfitters
- TCO Fly Shop - State College
- Flyfisher's Paradise
Guide Services
- Central PA Guides
- Big Fishing Creek Guide Service
- Limestone Anglers
Other Rivers You Might Like
Popular forecasts outside Pennsylvania—great for trip planning and comparing conditions.
Other Pennsylvania Trout Rivers
Delaware (below Hancock)
Spring
Youghiogheny
Allegheny
Penns Creek
Big Fishing Creek — frequently asked questions
When is the best time to fish the Big Fishing Creek?
Fall fishing excellent. BWOs return.
What flies should I bring to the Big Fishing Creek?
For the Big Fishing Creek (freestone), carry: Sulphur, Hendrickson, Scud, Beetle, Ant.
What water temperature is best for trout on the Big Fishing Creek?
On the Big Fishing Creek, 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 Big Fishing Creek?
Yes — you need a valid Pennsylvania fishing license to fish the Big Fishing Creek. Local season: Check PA Fish and Boat Commission.. Daily limit: Special regulations in some sections..
What hatches should I watch for on the Big Fishing Creek in September?
Slate Drake is the signature hatch on the Big Fishing Creek 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.
Ready to Fish the Big Fishing Creek?
Get real-time forecasts with AI-powered fly recommendations, live water conditions, and hatch predictions.
Get Your Forecast