A frost advisory is in effect for the Ottawa area overnight on Saturday. According to a notice from Environment Canada, overnight temperatures are expected to fall “near the freezing mark” Saturday night into Sunday morning. “Damage to plants, trees, and crops is possible,” Environment Canada wrote in its yellow-level advisory. “Cover up plants, especially those in frost-prone areas.” Overnight, the temperature is expected to reach a low of 3 C. Forecast While Ottawa residents should prepare for the possibility of frost overnight on Saturday, they can expect pleasant weather with mild temperatures during the day. According to Environment Canada’s weather forecast for the Ottawa area, Saturday will feature sunny weather and a temperature high of 15 C. On Sunday, expect a mainly cloudy day with a 40 per cent chance of showers and a temperature high of 17 C. Monday’s forecast predicts a high of 13 C and a chance of showers. On Tuesday, expect a high of 12 C and clear skies.
