Here we go again! The weather has been up and down all winter so far! Minus 20 one day ... plus 10 the next! Snow one day ... rain the next! After a low of close to minus 20 last night, we will see temperatures jump as much as 30 degrees by Sunday. Environment Canada is calling for heavy rain overnight Saturday into Sunday. Residents along the South Shore are being advised to check rain catch-basins outside and clear them of ice and snow to avoid flooding.