Weather forecast for 10 daysRound Lake Beach, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 63°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 15mphSSW 208°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
Tomorrow, sunshine is expected with little to no cloud cover.
The temperature is forecasted to vary between an enjoyable 62.6°F and an icy 39.2°F.
The predicted peak temperature will reflect the average October high of 59°F.
Sunrise will be at 7:09 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 57min.

10-day overview

Daily temperatures

Warmest day: Thursday 72°C.
Coldest day: tomorrow 63°C.

Chance of precipitation

Highest chance: 7%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 39°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphSSW 208°
  • Humidity: 71%
  • UV index: 0
  • Sunrise: 7:07 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 63°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 15mphSSW 208°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSW 205°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphE 97°
  • Humidity: 64%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphSSW 199°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:12 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphESE 111°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:13 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 7mphSE 133°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:15 am CDT
  • Sunset: 5:58 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSSE 161°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:16 am CDT
  • Sunset: 5:56 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSW 206°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:17 am CDT
  • Sunset: 5:55 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphNNE 25°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:18 am CDT
  • Sunset: 5:53 pm CDT
  • ▼
During the upcoming ten-day period, a combination of dull and sun-filled weather is expected.
Rain is not anticipated in Round Lake Beach in the upcoming days.
In the upcoming days, the maximum temperature will range between 62.6°F and 71.6°F, while the lowest temperature will be between 39.2°F and 50°F.
Thursday will be the warmest day, with a maximum temperature of 71.6°F; the coldest day will be Sunday, with a maximum of 62.6°F.
Updated: Oct 18, 2026 @ 03:12:04 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunshine will likely continue with scattered clouds at most.

Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be in line with the average highest temperature of 59°F in October. The lowest temperature will be relatively lower than the average low of 45.1°F.

On Sunday, in Round Lake Beach, sunrise will be at 7:09 am and sunset at 6:05 pm (CDT).

In Round Lake Beach, tomorrow, there will be 10h and 57min of daylight.