OTTAWA -- It’s a cold start to the day with a frost advisory in place but the final day of summer will not disappoint.

Environment Canada is forecasting lots of sunshine and a high of 17C on Monday. The overnight low will dip to 2C.

Fall officially arrives at 9:31 a.m. Tuesday.

The rest of the week will see slightly above average temperatures for this time of year.

Tuesday: Sunny and 20C

Wednesday: 24C with a mix of sun and cloud

Thursday: A chance of showers with a high of 18C