The temperatures in Fort Collins in September are comfortable with low of 12°C and and high up to 27°C.
The wather in Fort Collins in September can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Fort Collins in September 2024.
If you’re planning to visit Fort Collins in the near future, we highly recommend that you review the 14 day weather forecast for Fort Collins before you arrive.
Temperatures
27° / 12°
Rainy Days
2
Snowy Days
0
Dry Days
28
Rainfall
31
mm
Sun Hours
11.7
Hrs