Clear skies tonight and calm winds will contribute to a big drop in temperatures to near 20 for Sunday morning. Sunshine right from the start will help warm us up with milder temperatures in the 40s. A warm front will build in clouds through the day. Eventually rain will develop Sunday night and become heavy at times overnight through Monday morning. The Monday morning commute could be a slow one with rain and patches of fog. We will dry out for the second half of Monday and it will be seasonable with highs near 50. The remainder of the workweek looks bright and dry, but temperatures return to colder than average levels, topping out in the mid-30s.