Great Lakes
Blue River
Gauge data unavailable for Blue River.
Check USGS directly ↗
24-Hr Pressure
29.3 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
🌦️Drizzle
79° / 56°
Tomorrow
☁️Overcast
80° / 59°
Tue
☁️Overcast
82° / 54°
Wed
☁️Overcast
76° / 51°
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
One call. Specific to today's exact conditions on the Blue River.
Time of Day
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Blue River conditions.
🪰 Hatch Calendar
Blue River · June · Early Summer
Showing typical dates — water temperature data unavailable for live hatch predictions.
Select month
SULPHURS at peak (size 16-18) evenings. Caddis all day. Trico spinner falls beginning late month. The Blue is one of the most-protected Driftless ERW waters.
River Map
About Blue River
The Blue River in Grant County is one of Wisconsin's premier Driftless wild-trout streams and carries an Enhanced Resource Waters (ERW) designation — meaning catch-and-release only and artificials only on the protected sections. Heavy populations of wild brown trout in technical limestone water. The ERW status reflects decades of habitat work and the river's importance as a Driftless reference fishery.
Regulations
Enhanced Resource Waters (ERW) designation — catch-and-release only, artificials only on the protected sections. Wisconsin Fishing License required ($20 resident + $10 trout/salmon stamp = $30). Season opens first Saturday in May. Verify Grant County section-by-section regulations in current Wisconsin DNR trout regulations. No active USGS gauge — check with southwest WI fly shops.