Lake Ontario Weather

Environment Canada

• Extended Forecast – Western Lake Ontario
  Wednesday: Wind southwest 30 knots.Thursday: Wind west 25 knots.Friday: Wind west 20 knots.Issued 03:00 AM EST 10 November 2025
• Forecast for Today Tonight and Tuesday. – Western Lake Ontario
  Wind north 15 knots backing to northwest 15 near noon then increasing to northwest 20 Tuesday morning. Wind backing to west 25 Tuesday afternoon. Periods of snow ending early this morning. Scattered flurries this afternoon tonight and Tuesday morning. Periods of rain Tuesday evening. Issued 03:00 AM EST 10 November 2025
• Waves for Today Tonight and Tuesday. – Western Lake Ontario
  Waves 0.5 to 1 metre building to 1.5 Tuesday evening.Issued 03:00 AM EST 10 November 2025
• STRONG WIND WARNING IN EFFECT, Western Lake Ontario
  Issued 03:00 AM EST 10 November 2025
• Extended Forecast – Eastern Lake Ontario
  Wednesday: Wind southwest 30 knots.Thursday: Wind west 25 knots.Friday: Wind west 20 knots.Issued 03:00 AM EST 10 November 2025

WindFinder – Cobourg