Over the last decade, the earliest snow was September 16th in 2011, and the latest was November 19th in 2016. Over that same time, the average date for the first trace of snow is Oct. 16. This year, it appears that it will be right on time – as snow is in the forecast for this coming weekend. The good news is that it won't stay or is unlikely to accumulate with the expected temperatures above freezing.
Friday will be partly cloudy with the chance of the odd isolated shower mixed with wet snow in the morning. Temperatures will struggle to reach 8°C under partly cloudy skies in the afternoon before a better chance of showers and wet flurries arrive in the evening and overnight.
Saturday should bring some brief morning sun, but clouds move in before noon, followed by light rain in the late afternoon and evening. Daytime highs will reach 7°C.
Sunday will be mostly cloudy with a chance of showers throughout the day and wet flurries in the evening. The temperatures should reach 7°C with a west wind. The colder than normal temperatures will continue into early next week.