Weather forecast for tomorrowArapahoe, CO

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 73°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSSW 192°
  • Humidity: 37%
  • UV index: 5
  • Sunrise: 7:01 am MDT
  • Sunset: 6:06 pm MDT
  • ▼
Tomorrow, on Sunday, October 18, clear skies with only minor cloud interruptions are also in the outlook.
A daytime temperature reaching up to a temperate 73.4°F will sharply contrast with a nighttime low of a wintry 39.2°F.
The temperature of 73.4°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:01 am and sunset at 6:06 pm; tomorrow's daylight will last for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest period: 3 am - 6 am 41°C.

Chance of precipitation

Highest chance: 6 am 4%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphS 181°
  • Humidity: 71%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphNNW 344°
  • Humidity: 74%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 41°F
  • Feels like:
    37°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphN 351°
  • Humidity: 81%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphN 353°
  • Humidity: 81%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:01 am
  • 8 am
  • 45°F
  • Feels like:
    39°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphN 351°
  • Humidity: 76%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 55°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphN 8°
  • Humidity: 52%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphNNE 31°
  • Humidity: 40%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNE 56°
  • Humidity: 37%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphE 98°
  • Humidity: 38%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphESE 118°
  • Humidity: 50%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:06 pm
  • 8 pm
  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphESE 122°
  • Humidity: 73%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphSSE 151°
  • Humidity: 82%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloudy and dry and sunny weather is forecasted.
The temperature will vary between a minimum of 41°F and a maximum of 66.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature will align more closely with September's average high of 80.1°F than with October's 64°F. The minimum temperature tomorrow will be slightly cooler than October's average low.
Updated: Oct 18, 2026 @ 05:56:40 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, a glowing sky and minimal clouds are expected.

Tomorrow, the highest temperature will be 73.4°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be notably higher than the average highest temperature of 64°F in October. Tomorrow, the lowest temperature will be a couple of degrees lower than the average low temperature.

On Sunday, in Arapahoe, sunrise will be at 7:01 am and sunset at 6:06 pm (MDT).

In Arapahoe, Colorado, the length of the day tomorrow will be 11h and 5min.