Who is ready for another beautiful fall week? After a hot weekend, a weak cold front ushers in some slightly cooler weather to start the week. Look for mostly clear skies and a bit of a breeze overnight. Temperatures will drop dramatically into the upper 30s to lower 40s by Tuesday morning. Tuesday will be the coolest day of the week.As we welcome in the month of October, it'll feel more like the fall season! Daytime highs will stay in the mid to upper 70s on Tuesday afternoon, a refreshing break from the heat. Unfortunately, the break doesn't last long.Temperatures skyrocket into the lower 90s on Wednesday, potentially making it the latest 90+ day on record in Denver. It would also break the current daily high temperature of 88-degrees, last set in 2005. Feeling more like fall in Denver for the first day of OctoberCheck out the best hikes, drives and train rides to see Colorado's fall colors in the map below: DENVER WEATHER LINKS: Hourly forecast | Radars | Traffic | Weather Page | 24/7 Weather Stream Click here to watch the Denver7 live weather stream.