The best time to visit Fort Collins depends on your preferred activities, but generally, late spring (May-June) and early autumn (September-October) offer the most pleasant weather for exploring.Late spring brings warmer temperatures, often in the pleasant 20-25°C range, making it ideal for outdoor pursuits. The Cache la Poudre River is typically at a good level for white-water rafting, and the city's numerous parks and natural areas are lush and inviting for hiking and cycling. This period is great for those who enjoy active holidays without the intense heat of mid-summer.Early autumn is another excellent choice, with comfortable temperatures, typically 18-24°C, and the added beauty of changing leaves. This season is great for enjoying the city's breweries and outdoor dining without the summer crowds. The Colorado State University campus, located just south of the city centre, is particularly picturesque with its autumnal colours, making it a lovely time for couples to enjoy strolls and local events.Summer (July-August) can also be a good time, especially for families, with plenty of sunshine and average temperatures around 28-32°C. However, it's also the busiest time, and afternoon thunderstorms can be common.