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Weather in Fort Collins for May 2025

Your guide to Fort Collins weather in May - trends and predictions

  • In general, the average temperature in Fort Collins at the beginning of May is 14.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.4 °F by the end of May.

  • Expect significant rainfall in Fort Collins during May, with an average of 16 rainy days.

  • Snowfall in Fort Collins during May is quite rare, with fewer than 2 snowy days on average.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
1
Snow days
Average temperatures
19°/6°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
50 %
Avg humidity

Fort Collins in May average weather

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
14°
2
Partly cloudy
13°
3
Light rain shower
14°
4
Patchy rain possible
16°
5
Partly cloudy
22°
6
Light drizzle
13°
7
Patchy rain possible
10°
8
Partly cloudy
12°
9
Patchy heavy snow
9°
10
Patchy rain possible
12°
11
Patchy light rain with thunder
16°
12
Patchy light rain with thunder
19°
13
Patchy light rain with thunder
20°
14
Patchy rain possible
21°
15
Patchy light rain with thunder
16°
16
Partly cloudy
20°
17
Partly cloudy
24°
18
Thundery outbreaks possible
23°
19
Partly cloudy
24°
20
Overcast
20°
21
Patchy rain possible
23°
22
Sunny
21°
23
Patchy rain possible
23°
24
Moderate or heavy rain shower
18°
25
Moderate rain at times
21°
26
Moderate or heavy rain shower
21°
27
Patchy rain possible
23°
28
Moderate or heavy rain shower
23°
29
Heavy rain at times
23°
30
Patchy rain possible
24°
31
Moderate or heavy rain shower
22°
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Temperatures trend during May in Fort Collins

See the weather trend as well as the moving average line

May weather day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
May 1 Light rain shower
Light rain shower
 14° /7° 2.2 mm 0 cm
May 2 Partly cloudy
Partly cloudy
 13° /2° 0.1 mm 0 cm
May 3 Light rain shower
Light rain shower
 14° /3° 2.2 mm 0 cm
May 4 Patchy rain possible
Patchy rain possible
 16° /3° 0.1 mm 0 cm
May 5 Partly cloudy
Partly cloudy
 22° /6° 0 mm 0 cm
May 6 Light drizzle
Light drizzle
 13° /6° 0.7 mm 0 cm
May 7 Patchy rain possible
Patchy rain possible
 10° /2° 0.2 mm 0 cm
May 8 Partly cloudy
Partly cloudy
 12° /0° 0 mm 0 cm
May 9 Patchy heavy snow
Patchy heavy snow
 9° /1° 1.3 mm 0.6 cm
May 10 Patchy rain possible
Patchy rain possible
 12° /4° 0.1 mm 0 cm
May 11 Patchy light rain with thunder
Patchy light rain with thunder
 16° /5° 0.9 mm 0 cm
May 12 Patchy light rain with thunder
Patchy light rain with thunder
 19° /8° 5.8 mm 0 cm
May 13 Patchy light rain with thunder
Patchy light rain with thunder
 20° /8° 0.8 mm 0 cm
May 14 Patchy rain possible
Patchy rain possible
 21° /10° 0.2 mm 0 cm
May 15 Patchy light rain with thunder
Patchy light rain with thunder
 16° /8° 7 mm 0 cm
May 16 Partly cloudy
Partly cloudy
 20° /6° 0.7 mm 0 cm
May 17 Partly cloudy
Partly cloudy
 24° /10° 0.4 mm 0 cm
May 18 Thundery outbreaks possible
Thundery outbreaks possible
 23° /12° 1.2 mm 0 cm
May 19 Partly cloudy
Partly cloudy
 24° /10° 0.1 mm 0 cm
May 20 Overcast
Overcast
 20° /7° 0 mm 0 cm
May 21 Patchy rain possible
Patchy rain possible
 23° /8° 0.1 mm 0 cm
May 22 Sunny
Sunny
 21° /5° 0 mm 0 cm
May 23 Patchy rain possible
Patchy rain possible
 23° /8° 0.2 mm 0 cm
May 24 Moderate or heavy rain shower
Moderate or heavy rain shower
 18° /5° 6.7 mm 0 cm
May 25 Moderate rain at times
Moderate rain at times
 21° /7° 0.6 mm 0 cm
May 26 Moderate or heavy rain shower
Moderate or heavy rain shower
 21° /7° 2.2 mm 0 cm
May 27 Patchy rain possible
Patchy rain possible
 23° /8° 0.6 mm 0 cm
May 28 Moderate or heavy rain shower
Moderate or heavy rain shower
 23° /9° 2.5 mm 0 cm
May 29 Heavy rain at times
Heavy rain at times
 23° /9° 1.8 mm 0 cm
May 30 Patchy rain possible
Patchy rain possible
 24° /9° 1.6 mm 0 cm
May 31 Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /7° 2.4 mm 0 cm
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Important Notice
Our weather forecast for Fort Collins in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Fort Collins forecast closer to your planned date for the most up-to-date weather information.

Fort Collins in May - FAQ

What are the expected maximum and minimum temperatures in Fort Collins during May?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fort Collins during May?
Moderate rainfall is anticipated in Fort Collins during May, with a total of 56.1 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
Is snowfall common in Fort Collins during May?
Fort Collins experiences an average snowfall of 0.6 cm during May, occurring over 1 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in Fort Collins during May?
The average wind speed in Fort Collins during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Fort Collins

Explore the daily rainfall trends and prepare for Fort Collinss May weather 💧

May snowfall in Fort Collins

Track daily snowfall levels and discover Fort Collins’s snowy potential this May ❄️

UV exposure in Fort Collins during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

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Location coordinates Where is Fort Collins?

Get accurate weather forecasts for Fort Collins, located at latitude 40.585 and longitude -105.084. Stay updated with localized weather information tailored for Fort Collins.

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