Which is the hottest month in Fort Collins?

The hottest time of year in Fort Collins is normally July. Expect maximum daytime temperatures to reach 30°C with moderate heat and humidity.

Which month has the most rain in Fort Collins?

In terms of rainfall, May is usually the wettest month in Fort Collins with 70mm on average. There are normally 11 days in May with some rain.

When is it sunniest in Fort Collins?

The sunniest time of year in Fort Collins is normally September with bright sunshine on average for 72% of daylight hours; that's 9 hours of sunshine per day.

Best time to visit Fort Collins

Q: When is the best time to visit Fort Collins?

The best time to visit Fort Collins is May, June, July and August based on the following average weather conditions. Daily hours of sunshine = 10 hours or more.

Find the best time to visit Fort Collins and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Fort Collins by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Colorado

Marriott: Best price match gurantee for members

Sale

Join Marriott Bonvoy for the best rates on hotel stays
Exclusive membership perks & additional benefits
Includes discounts, upgrades & earn points free stays

Go to Marriott deal >>

View all Marriott offers

When is the best time to visit Fort Collins?

The best time to visit Fort Collins is May, June, July and August based on the following average weather conditions.

Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

2.5
Jan
3
Feb
4
Mar
4.5
Apr
5
May
5
Jun
5
Jul
5
Aug
4.5
Sep
4
Oct
2.5
Nov
2.5
Dec

Change criteria

Hours of Sunshine (daily)

7
Jan
7
Feb
8
Mar
9
Apr
10
May
11
Jun
11
Jul
10
Aug
9
Sep
8
Oct
6
Nov
6
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Colorado (Fort Collins) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)