Environment Canada has a fog advisory in effect across Renfrew County.
Near zero visibility in fog is expected or occurring and areas of dense fog will continue across the region tonight.
Drivers should allow extra time to reach their destination as visibility may be significantly and suddenly reduced to near zero.
If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop.
Fog patches are supposed to clear up Friday morning with a chance of showers and high of 7.
