Patchy fog returns to the Valley overnight into Saturday morning.
Some areas may see visibility briefly drop to one-third or one-half mile.
Temperatures will also be cooler this weekend. Fresno reached a high of 73 degrees Friday afternoon.
The average high this time of year is 70 degrees.
Highs will stay in the 60s this weekend and next week, while overnight lows drop into the 40s for the most part.