A weather front is bringing dark clouds with a chance of rain to the Okanagan and Shuswap.
Environment Canada reports a chance of showers across the entire region and the possibility of a thunderstorm in the Central and North Okanagan, as well as the Shuswap.
A mainly cloudy day with a chance of showers is forecast for Penticton with temperatures expected to reach 11 C.
A daytime high of 11 C is also expected for Kelowna where there is a 40 per cent chance of showers and the possibility of a thunderstorm late in the afternoon.
A late-afternoon thunderstorm and a 40 per cent chance of showers are also expected in Vernon.
In Salmon Arm, the forecast calls for a 60 per cent chance of showers with the possibility of a thunderstorm extending from the late afternoon into the early evening.