The forecast for Saturday is sunny in the morning with a chance of showers late this afternoon just as the Tamarack Ottawa Race Weekend kicks off.
Environment Canada forecasts increasing cloudiness this afternoon then 30 percent chance of showers late this afternoon and a high of 21 C.
They warn that the UV index will be very high in the afternoon, so take extra precautions for both your skin and eyes because damage occurs typically within 15 minutes according to health officials.
Saturday evening will start out cloudy with 30 percent chance of showers and a low of 13 C.
The weather service forecasts that Sunday morning will be clear with a high of 25 C and humidex of 27 C.
The evening will be cloudy with a low of 13 C into a rainy Monday as the capital is expecting 60 percent chance of showers and a high of 21 C.