Weather forecast for 10 daysFlat Rock, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSSE 148°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:03 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
Tomorrow, on Sunday, sunny skies are also in store, with excellent visibility.
Temperatures will see a substantial oscillation, reaching a high of a comfortable 64.4°F and dropping to a low of an icy 35.6°F.
The maximum temperature for tomorrow is anticipated to match the regular October high of 65.5°F.
Sunrise will be at 7:03 am and sunset at 6:08 pm; tomorrow's daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 79°C.
Coldest day: tomorrow 64°C.

Chance of precipitation

Highest chance: 6%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 36°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphESE 106°
  • Humidity: 92%
  • UV index: 0
  • Sunrise: 7:02 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSSE 148°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:03 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphESE 107°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:04 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphENE 59°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:05 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphNE 55°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphNE 42°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphE 85°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:08 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphESE 119°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 79°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphS 179°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 5:58 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 77°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphENE 59°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 5:57 pm CDT
  • ▼
Across the following ten days, a combination of clear and cloud-filled weather is anticipated.
Rainfall is not predicted in Flat Rock in the upcoming days.
Temperature differences will be noticeable in the coming days. Forecast highs will fluctuate between 64.4°F and 78.8°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 35.6°F up to 48.2°F.
With the highest temperature of 78.8°F, next Sunday will be the warmest day; expect the coldest day on Sunday with a high of 64.4°F.
Updated: Oct 18, 2026 @ 03:22:49 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunshine and minimal clouds are in the outlook.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 35.6°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be significantly lower than the average low of 48.6°F.

On Sunday, in Flat Rock, sunrise will be at 7:03 am and sunset at 6:08 pm (CDT).

In Flat Rock, the length of the day tomorrow will be 11h and 5min.