A cloudy start to the week is expected to give way to several days of warmer and sunnier weather across the London region. Environment Canada is forecasting cloudy skies Monday with a 60 per cent chance of showers and west winds of 30 km/h gusting to 50 km/h. The daytime high is expected to reach 21 C, with a humidex value of 25. Conditions are expected to improve Monday night, although skies will remain mostly cloudy with a 30 per cent chance of showers. Winds will ease through the evening and temperatures are forecast to drop to 14 C. Sunshine returns Tuesday with a forecast high of 24 C and a humidex of 29. The UV index is expected to reach 7, considered high. Clear skies are forecast Tuesday night with an overnight low of 12 C. The sunny trend is expected to continue Wednesday, with temperatures climbing to 26 C. Cloudy periods are forecast to move in Wednesday night, bringing a 30 per cent chance of showers and a low of 15 C. Thursday is expected to bring more clouds, with a 40 per cent chance of showers and a high of 24 C. Cloudy periods and a 30 per cent chance of showers will persist overnight as temperatures fall to 15 C. By Friday, forecasters are calling for a mix of sun and cloud with a 30 per cent chance of showers and a daytime high of 24 C.