Weather forecast for tomorrowMcKinney, TX

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 72°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphESE 123°
  • Humidity: 48%
  • UV index: 6
  • Sunrise: 7:33 am CDT
  • Sunset: 6:49 pm CDT
  • ▼
Tomorrow, in McKinney, clear skies and sunshine are also anticipated.
The highest temperature will be a delightful 71.6°F, while the lowest forecasted temperature is a brisk 46.4°F.
The high is forecasted to coincide with October's normal of 74.8°F.
Sunrise will be at 7:33 am and sunset at 6:49 pm; tomorrow's daylight will last for 11h and 16min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 70°C.
Coldest hour: 6 am 45°C.

Chance of precipitation

Highest chance: 6 am 5%.

Hourly weather forecast

  • 12 am
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphN 355°
  • Humidity: 72%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphNNE 16°
  • Humidity: 76%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphNE 35°
  • Humidity: 83%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphENE 68°
  • Humidity: 87%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:33 am
  • 8 am
  • 45°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphE 81°
  • Humidity: 83%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphESE 122°
  • Humidity: 56%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSE 146°
  • Humidity: 40%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSE 139°
  • Humidity: 34%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 4 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSE 135°
  • Humidity: 31%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSE 130°
  • Humidity: 33%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:49 pm
  • 8 pm
  • 61°F
  • Feels like:
    61°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphESE 111°
  • Humidity: 45%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphESE 116°
  • Humidity: 55%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, primarily mostly clear and occasionally cloud-filled weather is expected.
The temperature will vary between the lowest temperature of 44.6°F and the highest temperature of 69.8°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, expect conditions consistent with October's usual high temperature. The minimum temperature will be more consistent with November's average low of 47.3°F than October's typical 57.7°F.
Updated: Oct 17, 2026 @ 13:30:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in McKinney, skies will stay clear and sunny.

Tomorrow, the maximum temperature in McKinney will be 71.6°F, while the minimum temperature will be 46.4°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. Tomorrow, the lowest temperature will be noticeably lower than the average low of 57.7°F.

On Sunday, in McKinney, sunrise will be at 7:33 am and sunset at 6:49 pm (CDT).

Tomorrow, the daylight will last for 11h and 16min.