Weather forecast for tomorrowThornton, CO

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 75°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphESE 106°
  • Humidity: 24%
  • UV index: 4
  • Sunrise: 7:13 am MDT
  • Sunset: 6:16 pm MDT
  • ▼
Tomorrow, in Thornton, a mix of clouds and blue sky is expected.
Temperature readings are anticipated to span from a high of a moderately hot 75.2°F to a low of a chilly 42.8°F.
The warmer conditions bring a maximum of 75.2°F, more representative of September than October.
Sunrise will be at 7:13 am and sunset at 6:16 pm; tomorrow's daylight will last for 11h and 2min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 73°C.
Coldest hour: 6 am 46°C.

Chance of precipitation

Highest chance: 12 am - 6 am 1%.

Hourly weather forecast

  • 12 am
  • 54°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSW 217°
  • Humidity: 40%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSW 213°
  • Humidity: 46%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSW 224°
  • Humidity: 51%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 46°F
  • Feels like:
    45°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSSW 208°
  • Humidity: 49%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:13 am
  • 8 am
  • 46°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSW 203°
  • Humidity: 48%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 61°F
  • Feels like:
    61°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphS 175°
  • Humidity: 28%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 83°
  • Humidity: 18%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 73°F
  • Feels like:
    73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 73°
  • Humidity: 13%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 73°F
  • Feels like:
    73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 77°
  • Humidity: 13%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 70°F
  • Feels like:
    70°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphENE 60°
  • Humidity: 16%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:16 pm
  • 8 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphENE 61°
  • Humidity: 29%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 55°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphN 357°
  • Humidity: 38%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily overcast and occasionally sun-filled weather is anticipated.
The temperature will be between the lowest temperature of 46.4°F and the highest temperature of 73.4°F. The warmest part of the day will be from 2 pm to 4 pm.
The day’s peak temperature will reflect September's norm of 79.5°F more than October's 63.3°F. The expected low will be in line with the average minimum in October, which is 40.1°F.
Updated: Oct 18, 2026 @ 00:32:08 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, clouds will come and go, but expect bright periods in between.

Tomorrow, the maximum temperature will be 75.2°F, while the minimum temperature will be 42.8°F.
The maximum temperature tomorrow will be uncommonly higher than the average highest temperature of 63.3°F in October. The lowest temperature will be in line with the average low of 40.1°F.

On Sunday, in Thornton, sunrise will be at 7:13 am and sunset at 6:16 pm (MDT).

In Thornton, tomorrow, there will be 11h and 2min of daylight.