Saskatoon's weather: Mainly sunny; high -17 C, low -20 C

Tuesday will be a mainly sunny day in Saskatoon, according to Environment Canada’s forecast.
Expect wind of up to 15 kilometres per hour. A high of -17 C with a wind chill of -27 C are in the forecast.
In the evening, there should be a few clouds with clouds increasing after midnight. 
A low of -20 C with a wind chill of -27 is expected.