Weather forecast for 10 daysFort Collins, CO

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 75°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 164°
  • Humidity: 33%
  • UV index: 4
  • Sunrise: 7:13 am MDT
  • Sunset: 6:17 pm MDT
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On Saturday, October 17, clear and sunny conditions are expected.
A daytime temperature reaching up to a moderately hot 75.2°F will sharply contrast with a nighttime low of a wintry 41°F.
Expect temperatures to match September's average maximum of 74.5°F rather than October's 58.3°F.
Sunrise was at 7:13 am and sunset will be at 6:17 pm; the daylight will last for 11h and 4min.

Sunday Oct 18, 2026

  • 75°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSE 147°
  • Humidity: 28%
  • UV index: 4
  • Sunrise: 7:14 am MDT
  • Sunset: 6:15 pm MDT
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Tomorrow, in Fort Collins, dry and sunny weather is expected throughout the day.
Considerable temperature fluctuations from a high of a moderately hot 75.2°F to a low of a brisk 44.6°F are forecasted.
Tomorrow, climate comparisons show a temperature closer to September's 74.5°F than October's 58.3°F.
Sunrise will be at 7:14 am and sunset at 6:15 pm; tomorrow's daylight will last for 11h and 1min.

10-day overview

Daily temperatures

Maximum temperature: 75°C.
Coldest day: Sunday 25.10. 61°C.

Chance of precipitation

Highest chance: Friday 35%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 75°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 164°
  • Humidity: 33%
  • UV index: 4
  • Sunrise: 7:13 am MDT
  • Sunset: 6:17 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 75°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSE 147°
  • Humidity: 28%
  • UV index: 4
  • Sunrise: 7:14 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSE 136°
  • Humidity: 45%
  • UV index: 4
  • Sunrise: 7:16 am MDT
  • Sunset: 6:14 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSSE 163°
  • Humidity: 45%
  • UV index: 4
  • Sunrise: 7:17 am MDT
  • Sunset: 6:12 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSSE 151°
  • Humidity: 40%
  • UV index: 4
  • Sunrise: 7:18 am MDT
  • Sunset: 6:11 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphESE 121°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:19 am MDT
  • Sunset: 6:10 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 45°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 35%
  • Precipitation: 0.08"
  • Wind: 9mphNNW 346°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:20 am MDT
  • Sunset: 6:08 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 64°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 10mphESE 102°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:21 am MDT
  • Sunset: 6:07 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphESE 123°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:22 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSE 130°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:23 am MDT
  • Sunset: 6:04 pm MDT
  • ▼
During the ten-day period, cloud-filled, sun-filled and lightning-active weather is forecasted.
With a probability of 35%, rainfall is anticipated only on Friday. Anticipated precipitation will be minimal at 0.08".
Temperature differences will be noticeable in the coming days. Maximum temperatures are forecasted between 60.8°F and 75.2°F, while nighttime temperatures are expected to vary from 39.2°F to 50°F.
Saturday, Sunday and Wednesday, with the highest temperature of 75.2°F, will be the warmest days; the coldest day will be next Sunday, with a maximum of 60.8°F.
Updated: Oct 17, 2026 @ 15:08:56 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Fort Collins, sunshine and minimal clouds are in the outlook.

Today, the highest temperature will be 75.2°F, while the lowest temperature will be 41°F.
Today, the maximum temperature will be noticeably higher than the average highest temperature of 58.3°F in October. Today, the lowest temperature will be relatively higher than the average low temperature.

On Saturday, in Fort Collins, sunrise was at 7:13 am and sunset will be at 6:17 pm (MDT).

In Fort Collins, today, there will be 11h and 4min of daylight.

On Sunday, mainly sunny conditions will dominate the day.

Tomorrow, the highest temperature will be 75.2°F, while the lowest temperature will be 44.6°F.
The maximum temperature will be notably higher than the average highest temperature of 58.3°F in October. The lowest temperature tomorrow will be a few degrees higher than the average low temperature.

On Sunday, in Fort Collins, sunrise will be at 7:14 am and sunset at 6:15 pm (MDT).

In Fort Collins, the length of the day tomorrow will be 11h and 1min.