Lake Ontario Weather

Environment Canada

• Extended Forecast – Western Lake Ontario
  Tuesday: Wind light increasing to south 20 knots in the morning.Wednesday: Wind south 20 knots diminishing to light.Thursday: Wind northeast 15 knots diminishing to light.Issued 06:30 PM EDT 13 September 2026
• Forecast for Tonight and Monday. – Western Lake Ontario
  Wind northwest 20 knots diminishing to northwest 15 near midnight and to north 10 early Monday morning. Wind becoming variable 10 near noon Monday. Scattered showers this evening. Issued 06:30 PM EDT 13 September 2026
• Waves for Tonight and Monday. – Western Lake Ontario
  Waves 0.5 to 1 metre subsiding to 0.5 or less Monday morning.Issued 06:30 PM EDT 13 September 2026
• STRONG WIND WARNING IN EFFECT, Western Lake Ontario
  Issued 6:30 PM EDT 13 September 2026
• Extended Forecast – Eastern Lake Ontario
  Tuesday: Wind light increasing to south 20 knots in the morning.Wednesday: Wind south 20 knots diminishing to light.Thursday: Wind northeast 15 knots diminishing to light.Issued 06:30 PM EDT 13 September 2026

WindFinder – Cobourg