Map of Onnie Lake

Onnie Lake

50.9375° N, 94.2678° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Onnie Lake covers 1.65 km², making it larger than 77% of the 18,731 lakes in Ontario. It lies 23 km west of Madsen.

Government surveys have recorded 10 fish species here, including cisco, walleye and lake whitefish.

Area
1.65 km²
larger than 77% of the 18,731 lakes in Ontario
Shoreline
11.1 km
longer than 76% of the 18,731 lakes in Ontario
Fish species
10
more than 77% of the 2,454 surveyed lakes in Ontario
Elevation
380 m

Today on the water

2.8 °C

Mostly CloudyWind SE 9 km/h

Observed at Red Lake, as of 8:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 5 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.

Hourly forecast, next 24 hours
Time9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.6 a.m.
Wind km/hS 15S 15SE 10SE 20SE 20SE 20SE 20SE 20
Gusts km/h4040404040
Waves (est.) m0.10.10.10.2
Temp. °C510111098910
Precip. %2020606060101010

Today: Mainly cloudy. 30 percent chance of rain showers or flurries early this morning. 60 percent chance of rain this afternoon. High 12. UV index 2 or low.

Weather: Red Lake (local forecast), as of 8:04 a.m. CDT

Sun and moon

Civil dawn
6:57 a.m.
Sunrise
7:30 a.m.
Sunset
6:37 p.m.
Civil dusk
7:09 p.m.
Moonrise
6:23 a.m.
Moonset
5:55 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Fish

Sport fish by the share of the 19 government surveys (2009–2009) that recorded them.

  • Cisco13 of 19
  • Walleye13 of 19
  • Lake Whitefish5 of 19
  • Northern Pike3 of 19
  • Yellow Perch3 of 19
  • Lake Trout1 of 19
Forage fish and other species (4)

Forage fish

  • Trout-Perch 4
  • Spottail Shiner 3
  • Emerald Shiner 1

Other

  • White Sucker 7

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 2 species from Onnie Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm2Do not eatMercury
Walleye40-45 cm2Do not eatMercury

* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide

Fishing regulations: Fisheries Management Zone 4. Check seasons and limits before you fish.