BirdTroutOpen the map Casco Creek fishing report
61.7 °F at Kewaunee River, 5.0 miles away — the nearest gauge, not a reading of Casco Creek. It says what the region's water is doing today. No reporting stretch is in the cold band right now, so fish the first hours of light and the tributary mouths. September is Blue-Winged Olive, Cranefly, Green Rock Worm / Green Weenie and Caterpillar in this region — 15 insects are recorded as active.
Water temperature right now
| Gauge | Reading | July mean | Read at |
|---|---|---|---|
| Kewaunee River — 5.0 mi off this river | 61.7 °F | — | 30 Sep 2026, 14:00 UTC |
Read from USGS instantaneous values when this page was built, and rebuilt nightly. The colour is the same four-band scale the map paints from.
What is hatching in September
| Insect | Hook | Active at |
|---|---|---|
| Blue-Winged Olive | #16–22 | 38–58 °F |
| Cranefly | #6–10 | 40–65 °F |
| Green Rock Worm / Green Weenie | #10–14 | 45–68 °F |
| Caterpillar | #8–14 | 55–75 °F |
| Crayfish | #4–8 | 55–78 °F |
| Black Ant | #14–20 | 55–80 °F |
| Isonychia / Slate Drake | #10–14 | 55–70 °F |
| Leafhopper | #18–22 | 58–75 °F |
| Little Yellow May | #16–18 | 58–70 °F |
| Grasshopper | #8–12 | 60–80 °F |
| Trico | #20–24 | 58–72 °F |
| White Miller | #14–18 | 60–74 °F |
| Cinnamon Flying Ant | #16–20 | 58–78 °F |
| October Caddis | #8–10 | 45–58 °F |
| Water Boatman | #14–18 | 45–65 °F |
The rest of the state
This is one river. The Wisconsin report covers every region at once, and is refreshed at the same time as this page.
More about Casco Creek
Casco Creek — live water temperature, regulations and access
- When to fish Casco Creek, Wisconsin
- How to get to Casco Creek, Wisconsin
- Casco Creek fishing regulations