Ottawa could see another 20 millimetres of rain today, adding to the record amount of rain that soaked the capital in July. A total of 259.9 mm of rain has been recorded at the Ottawa Airport so far in July, setting a record for the wettest July in Ottawa’s history. Ottawa received 37.6 mm of rain on Tuesday. Environment Canada’s forecast calls for showers today with the risk of a thunderstorm. Ottawa could see 10 to 15 mm of rain. High 22 C with the humidex making it feel like 27. Showers continuing tonight. Environment Canada says another 5 mm is expected. Low 17 C. Thursday will be cloudy with a 60 per cent chance of showers. There is a risk of an afternoon thunderstorm. High 25 C. Friday will be sunny. High 28 C. The outlook for Saturday calls for mainly cloudy. High 26 C. Sunday will be cloudy with a 40 per cent chance of showers. High 23 C. The normal temperatures for this time of year are a high of 26 C and a low of 16 C.