Weather forecast for tomorrowFrederick, IL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphS 184°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
Tomorrow, on Sunday, sunny skies are in store, with excellent visibility.
Temperatures are set to span a considerable range, with a high of a breezy 66.2°F and a low of an icy 37.4°F.
The expected maximum is predicted to be in line with the regular October temperature of 63.9°F.
Sunrise will be at 7:15 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 2min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 6 am 5%.

Hourly weather forecast

  • 12 am
  • 41°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphS 180°
  • Humidity: 82%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 39°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphS 180°
  • Humidity: 87%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 37°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 180°
  • Humidity: 89%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 178°
  • Humidity: 90%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:15 am
  • 8 am
  • 41°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphS 182°
  • Humidity: 87%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 187°
  • Humidity: 59%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphS 190°
  • Humidity: 44%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 186°
  • Humidity: 38%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 180°
  • Humidity: 37%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphS 169°
  • Humidity: 46%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:17 pm
  • 8 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSSE 164°
  • Humidity: 65%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSE 167°
  • Humidity: 75%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, mostly cloudless and sunny weather is anticipated.
The temperature will be between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the temperature is forecasted to be similar to the usual maximum for October. Tomorrow, expect the temperature to be more similar to the typical minimum for November than for October.
Updated: Oct 17, 2026 @ 23:28:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, the weather remains calm, bright, and sunny.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be uncommonly lower than the average low of 47.3°F.

On Sunday, in Frederick, sunrise will be at 7:15 am and sunset at 6:17 pm (CDT).

In Frederick, the length of the day tomorrow will be 11h and 2min.