It will be a sunny and cool final full day of summer in Ottawa, but the stretch of days without rain is expected to continue all week. Environment Canada’s forecast calls for a mix of sun and cloud today. High 16 C. It will be partly cloudy tonight. Low 5 C. Tuesday will see sunshine. High 17 C. Fall officially arrives at 8:05 p.m. on Tuesday. Sunshine continues on Wednesday. High 19 C. The outlook for Thursday calls for sunshine. High 21 C. Friday will see a mix of sun and cloud. High 19 C. The normal temperatures for this time of year are a high of 18 C and a low of 8 C. Dry stretch of weather This could be the sixth straight day without rain in Ottawa, the longest stretch of dry weather since July. The last time it rained was Sept. 15. There was no rain reported in Ottawa between July 2 and July 8. Ottawa received 118.4 mm of rain on July 1 and 39 mm of rain on July 9. Ottawa has received 56.3 mm of rain so far in September.
