LONDON, ONT. -- Another beautiful day with sunshine and comfortable temperatures. 

The forecast will take a turn tonight, with clouds rolling in overnight.  It will be much warmer overnight with lows holding in the upper teens.

Grab your umbrella as you head out Friday, there is the risk for showers and thunderstorms. 

The greatest chance for rain arrives Friday morning.  Temperatures will climb into the upper 20's, with the humidex it will feel like the mid thirties. 

Sunshine is in the forecast to make an appearance Saturday afternoon, and the chance for rain will drop off during the day. 

A mix of sun and cloud on the way for Father’s Day, the high is expected to reach the upper 20’s. 

The chance for showers returns Sunday night and Summer officially arrives at 11:32pm. 

Rain is in the forecast for the first full day of Summer Monday.