NWS, the American and the European model agree on a high near 56° in Fort Collins today. Tomorrow: light drizzle, around 55°, with a 67% chance of rain.
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Fort Collins weather in numbers
measured normals and 10 years of recorded weather
Fort Collins swings 71°F across the year, from 86°F highs in July to 15°F lows in February, and May is usually the wettest month in a year that brings about 15 in of precipitation. Over 10 years of recorded weather it averages 111 days a year at 77°F or above, 53 of them at 86°F or above, 150 frost nights, and rain on 73 days.
Warmest month
July
86°F average high
Coldest month
February
15°F average low
Wettest month
May
15 in a year
Comfortable
3 months
April, September and October
Residents
171,000
share this forecast
Most accurate here
European
91/100 CheckWeather Score
Warm days
111 days
a year at 77°F or above
Frost nights
150 nights
a year below 32°F
Rain days
73 days
a year with 0.04 in or more
Day counts are from the ERA5 reanalysis for Fort Collins’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.
The weather map: all three models at once
NWS, American, European side by side around Fort Collins and nearby towns.Live rain radar →
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Fort Collins hourly forecast: next 14 hours
consensus of the three models
Rain in the next 24 hours, model by model
each model's own hourly precipitation, side by side
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Fort Collins 10-day forecast, out to 14 days
where the models agree, and where they split
Today
Cloudy
56°44°
models agree
Tomorrow
Light drizzle
55°40°
±6°
Mon
Light drizzle
58°45°
±4°
Tue
Mostly clear
65°40°
±7°
Wed
Cloudy
64°42°
models agree
Thu
Cloudy
66°43°
±6°
Fri
Cloudy
66°44°
±9°
Sat
Cloudy
66°45°
±7°
Sun
Light drizzle
61°42°
models agree
Mon
Light drizzle
61°39°
models agree
Tue
Clear
65°42°
models agree
Wed
Clear
60°45°
±18°
Thu
Partly cloudy
60°43°
±25°
Fort Collins, Colorado (CO) is at its warmest in Jul (average highs near 86°F) and coldest in Feb (lows around 15°F), with roughly 15 in of precipitation across the year. Below, compare what NWS, American, European forecast for Fort Collins right now, and see exactly where they disagree.
average daytime high and overnight low across a typical year (1991-2020)
Jan
37°
18°
Feb
41°
15°
Mar
52°
27°
Apr
60°
32°
May
69°
44°
Jun
79°
54°
Jul
86°
58°
Aug
84°
57°
Sep
78°
48°
Oct
63°
36°
Nov
49°
27°
Dec
40°
19°
Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Fort Collins' weather has changed since 1995
30 years of daily data, 1995-2024, shown as change
+0.8°F
Around Fort Collins, the difference between 1995-2004 and 2015-2024 is +0.8°F, within the normal swing from year to year.
1995each stripe is one year2024
cooler than averagearound averagewarmer than average
Days above 95°F
2 more days a year
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
3 fewer nights a year
2015-2024 against 1995-2004, below 32°F. Within the normal year-to-year swing
Average wind
no clear change
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
Year
Temp vs average
Days >95°F vs avg
Frost nights vs avg
Wind vs avg
1995
−1.2°F
−1
−1
−4%
1996
−1.2°F
−8
+8
+4%
1997
−1.5°F
−8
+10
+1%
1998
−0.6°F
−4
−4
−9%
1999
−0.1°F
−7
−5
+4%
2000
+0.4°F
+6
+3
−1%
2001
+1.0°F
+3
−2
−6%
2002
+0.1°F
+16
+11
+1%
2003
+0.8°F
+10
−4
−1%
2004
−0.1°F
−6
−12
−1%
2005
+0.4°F
+2
−5
+1%
2006
+0.4°F
+5
−2
+6%
2007
+0.4°F
+6
−15
+1%
2008
−1.2°F
+1
+16
+9%
2009
−1.9°F
−10
+7
+4%
2010
−0.6°F
−7
+15
−4%
2011
−1.0°F
−3
+18
+4%
2012
+2.6°F
+9
−29
+1%
2013
−1.4°F
−4
+21
−1%
2014
−1.2°F
−9
+5
+4%
2015
+0.4°F
−10
−23
−4%
2016
+1.0°F
−5
−18
−1%
2017
+0.8°F
−2
−17
−1%
2018
+0.3°F
−0
+12
−1%
2019
−1.4°F
+1
+23
−4%
2020
+0.8°F
+5
+7
+1%
2021
+1.2°F
+5
−3
−1%
2022
+0.4°F
+12
+7
+6%
2023
−0.1°F
−1
−2
−4%
2024
+2.6°F
+10
−14
−4%
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Fort Collins, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in Fort Collins?
CheckWeather Score, graded against the weather that actually happened
Provider
CheckWeather-score
Temp
Wind
Rain
Run by
European ★ Best
91
/100rank #1
96±0.4°F
96±1.4 mph
8290% hit
ECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American
78
/100rank #2
80±2.0°F
93±2.1 mph
6581% hit
NOAA / NCEP (United States)College Park, Maryland, USA
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Where the models disagree
temperature and rain, judged separately
Day
Temperature
Rain
Today
±3°55° to 58°
±6%7% to 13% chance
Tomorrow
±6°52° to 59°
±24%43% to 67% chance
Mon
±4°57° to 61°
±18%53% to 71% chance
Tue
±7°62° to 69°
±2%4% to 6% chance
Wed
±4°62° to 66°
models agree2% to 2% chance
The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.
Sunrise and sunset in Fort Collins
today, local time
Sunrise
07:21
Sunset
18:06
Daylight
10h 45m
Common questions
What's the weather in Fort Collins today?
Saturday, October 24: NWS, the American and the European model agree on a high near 56° in Fort Collins today. Tomorrow: light drizzle, around 55°, with a 67% chance of rain. The forecast on this page refreshes live.
Will it rain in Fort Collins today or tomorrow?
The models split on rain in Fort Collins on Sunday, October 25: NWS 67%, American 67%, European 43%. When they disagree like this, treat any single app's answer with caution. On Saturday, October 24 the highest chance of rain from any model is 13%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Fort Collins?
Over the last 30 days, the European model has been the most accurate for Fort Collins (CheckWeather Score 91/100), ahead of the American at 78. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Fort Collins?
July is typically the warmest month in Fort Collins, with average highs around 86°F.
How cold does Fort Collins get?
The coldest month in Fort Collins is February, when overnight lows average about 15°F.
How much rain does Fort Collins get?
Fort Collins sees roughly 15 in of precipitation a year, with May usually the wettest month.
Is Fort Collins getting warmer?
Not clearly. In NASA's reanalysis for the area around Fort Collins, the difference between 1995-2004 and 2015-2024 is 0.8°F, within the normal swing from year to year.
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