Weather forecast for tomorrowCheyenne, WY

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 70°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphNNW 338°
  • Humidity: 23%
  • UV index: 4
  • Sunrise: 7:14 am MDT
  • Sunset: 6:14 pm MDT
  • ▼
On Sunday, in Cheyenne, mostly clear skies and sunshine will create ideal daytime conditions.
Temperature values will vary noticeably, extending from a pleasant 69.8°F to a wintry 39.2°F.
Tomorrow, the temperature forecast of 69.8°F will better match September's climate average than that of October.
Sunrise will be at 7:14 am and sunset at 6:14 pm; tomorrow's daylight will last for 10h and 59min.

Hourly overview

Hourly temperatures

Warmest period: 12 pm - 3 pm 68°C.
Coldest hour: 3 am 46°C.

Chance of precipitation

Highest chance: 12 am - 9 pm 0%.

Hourly weather forecast

  • 12 am
  • 50°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphW 273°
  • Humidity: 32%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphW 275°
  • Humidity: 32%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 48°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphW 275°
  • Humidity: 31%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 48°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWNW 282°
  • Humidity: 32%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:14 am
  • 8 am
  • 48°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphWNW 288°
  • Humidity: 34%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphWNW 294°
  • Humidity: 24%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 68°F
  • Feels like:
    68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphNW 319°
  • Humidity: 16%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphN 358°
  • Humidity: 16%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphNNE 33°
  • Humidity: 21%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphNE 56°
  • Humidity: 29%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:14 pm
  • 8 pm
  • 54°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNE 36°
  • Humidity: 40%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphN 9°
  • Humidity: 49%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of sunny and dull weather is predicted.
The temperature will vary between a minimum of 46.4°F and a maximum of 68°F. The warmest part of the day will be from noon to 3 pm.
Tomorrow, the peak temperature is expected to align more with September than with October's typical high. Tomorrow, the temperature will drop to a level resembling October's average minimum of 38.3°F.
Updated: Oct 17, 2026 @ 14:50:06 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, mainly sunny skies with just a few high clouds are anticipated.

Tomorrow, the maximum temperature will be 69.8°F, while the minimum temperature will be 39.2°F.
The maximum temperature tomorrow will be significantly higher than the average highest temperature of 57.2°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.

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

Tomorrow, the daylight will last for 10h and 59min.