Toronto Weather Forecast, maximal polite

Tonightterrible-10Partly cloudy. 30% chance of flurries this evening.
Wednesdayok-3Mainly sunny. Wind becoming southwest 20 km/h gusting to 40 near noon.
Wednesday nightbad-8Partly cloudy. Wind southwest 20 km/h gusting to 40 becoming light in the evening.
Thursdayok-4A mix of sun and cloud.
Thursday nightbad-5Cloudy periods with 30% chance of flurries.
Fridaygood2A mix of sun and cloud.
Friday nightok-1Cloudy periods. Windy.
Saturdaygood3Cloudy. Windy.
Saturday nightgood1Cloudy with 30% chance of drizzle.
Sundaygood4Cloudy with 40% chance of drizzle.
Sunday nightbad4Cloudy with 60% chance of rain.
Mondaybad5Cloudy with 70% chance of rain.
As of Tue Jan 16 18:45:02 2018

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How does hogdex come up with the ratings?