Showers and the risk of thunderstorm are in the forecast for London on Saturday, with rainfall amounts of up to 15 millimetres expected. Environment Canada is calling for showers throughout the day, with local rainfall amounts of 10 to 15 millimetres. Winds will become southerly at 20km/h, gusting to 40, near noon. The high is expected to reach 24 C, with a humidex of 28. Showers are expected to end near midnight Saturday before skies become cloudy, with a 40 per cent chance of showers overnight. There is also a risk of thunderstorm Saturday evening. Sunday is expected to remain cloudy, with a 40 per cent chance of showers in the morning and early afternoon before a few showers develop later in the day. There is a risk of a thunderstorm late Sunday afternoon.
