Size
172ac
Boat Launch
Carry-in Launch
Toilet
Yes
Boat Dock
Species in O'Brien Lake
Bluegill
Pumpkinseed
Rock bass
Walleye
Perch
Crappie
Largemouth bass
Smallmouth bass
Northern pike
Overview
O'Brien Lake Map
Weather
61°Feels like 61°
84°
63°
84°63°5:58 AM
8:46 PM
0 mph
East
0 in
Rain
29.97 inHg
Stable
SundaySu
84° / 63°
MondayMo
85° / 58°
TuesdayTu
74° / 49°
WednesdayWe
78° / 54°
ThursdayTh
81° / 60°
FridayFr
81° / 63°
Moon Phase
August 02, 2026
85% Illumination
waning gibbous, getting dimmer
SundaySu08/02
MondayMo08/03
TuesdayTu08/04
WednesdayWe08/05
ThursdayTh08/06
FridayFr08/07
SaturdaySa08/08
Get Your Line in the Right Water
Quickly find the best places to fish and plan your day right.
Top Fish Species
Bluegill
2-9 in
Length Range
7 in
Length Range
2019
Surveyed
Abundance (CPUE)
Understanding Abundance
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.Species Lengths
