A cold front will swing across the plains early Friday morning. Winds will pick up along the edge of this front, with gusts between 25 to 30 mph.Temperatures will cool into the upper 70s on Friday with a slightly better chance of storms during the afternoon. Friday will be about 10 degrees cooler than Thursday and a few degrees cooler than the average high.Although cooler, it will be a mostly sunny Friday afternoon. Only a few isolated storms are expected through the early evening hours.Autumn doesn't officially start until Sept. 22, but it will feel a lot like it this weekend. The surge of cool air will intensify on both Saturday and Sunday. Temperatures start off in the 40s on Saturday morning, with upper 60s by the afternoon. This might be the perfect weekend to pull out your fall coat!Any moisture the area gets this weekend will be a welcome sight. So far, this September has been a dry one. Denver is currently .39 inches below average for the month. Overall, though, it's been a wet year. Denver is 2.62 inches above average for the year. with 15.08 inches since Jan. 1.Temperatures will rebound a bit toward the beginning of next week, with highs near 80 by the middle of the week.Many mountain areas along and north of I-70 are reporting some pretty scenes as the aspens begin to turn. The cool, wet summer may make this year's display come and go about a week faster than average, so you may want to plan a trip to the mountains --maybe even next weekend!