Weather forecast for 10 days
Round Lake Beach, IL

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:14 am

8:34 pm
CDT
Sunny
97°F / 77°F
  • Wind: 20mph SSW
  • Humidity: 59%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 9
Tomorrow, sunshine will likely continue with scattered clouds at most.
Rainfall is not predicted. Temperatures are expected to range from a maximum of a steamy 96.8°F to a minimum of a moderately hot 77°F.
The maximum heat index, which integrates air moisture with ambient temperature, is appraised at a blazing hot 118.4°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow, the hotter weather will bring a peak temperature more in tune with July's 79.9°F.
Sunrise will be at 5:14 am and sunset at 8:34 pm; tomorrow's daylight will last for 15h and 20min.

Sunday, Jun 22.

Sunny
5:14 am

8:34 pm
CDT
Sunny
97°F / 77°F
  • Wind: 17mph SW
  • Humidity: 54%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 9
On Sunday, in Round Lake Beach, expect sunny weather with a crisp, clear sky.
Rainfall is not anticipated. The temperature scale will run from a maximum of a sizzling 96.8°F to a minimum of a moderately hot 77°F.
On Sunday, the expected high temperature of 96.8°F better resembles July's average maximum than June's usual.
Sunrise will be at 5:14 am and sunset at 8:34 pm; the daylight will last for 15h and 20min.

Frequently asked questions

What is the weather forecast for Round Lake Beach for tomorrow?
Tomorrow, in Round Lake Beach, expect bright skies and plenty of sunshine.
Will it rain tomorrow?
No, it will not rain tomorrow.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 96.8°F, while the lowest temperature will be 77°F. The maximum heat index, which combines relative humidity and air temperature, is computed to be 118.4°F.
The highest temperature will be uncommonly higher than the average maximum of 74.8°F in June. The lowest temperature tomorrow will be also uncommonly higher than the average low of 58.8°F.
When is the sunrise / sunset tomorrow?
On Saturday, in Round Lake Beach, sunrise will be at 5:14 am and sunset at 8:34 pm (CDT).
How many hours of daylight will Round Lake Beach have tomorrow?
In Round Lake Beach, tomorrow, there will be 15h and 20min of daylight.
What is the weather forecast for Round Lake Beach for Sunday?
On Sunday, skies will stay clear and sunny.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 96.8°F, while the minimum temperature will be 77°F.
What is the weather forecast for Round Lake Beach for the next ten days?
In Round Lake Beach, a combination of thunderstorm-prone, mostly clear and rain-filled weather is predicted for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on Friday, Tuesday through next Sunday in Round Lake Beach. The days with the most rainfall will be Thursday and next Saturday, with light precipitation of 0.24".
How hot will it be in the next ten days?
The maximum temperature will range between 82.4°F and 96.8°F, as the minimum temperature will be between 64.4°F and 77°F.
Combining with the humidity, the maximum feel-like temperature will range between 86°F and 118.4°F.
What will be the hottest and the coldest days?
With a maximum temperature of 96.8°F, Saturday through Monday will be the hottest days. The coldest days will be Wednesday and next Sunday, with a maximum of 82.4°F.

Long-term weather forecast

FriJun 20.
  • 84°F
  • 75°F
AM Showers
AM Showers
  • Wind: 14mph SSW
  • Humidity: 64%
  • UV index: 7
  • Precip. probability: 57%
  • Precipitation: 0.04"
  • 5:13 am 8:34 pm CDT
SatJun 21.
  • 97°F
  • 77°F
Sunny
Sunny
  • Wind: 20mph SSW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:14 am 8:34 pm CDT
SunJun 22.
  • 97°F
  • 77°F
Sunny
Sunny
  • Wind: 17mph SW
  • Humidity: 54%
  • UV index: 9
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:14 am 8:34 pm CDT
MonJun 23.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 16mph SW
  • Humidity: 46%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:14 am 8:34 pm CDT
TueJun 24.
  • 90°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 8mph SW
  • Humidity: 57%
  • UV index: 8
  • Precip. probability: 43%
  • Precipitation: 0.12"
  • 5:14 am 8:34 pm CDT
WedJun 25.
  • 82°F
  • 66°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph ESE
  • Humidity: 68%
  • UV index: 8
  • Precip. probability: 42%
  • Precipitation: 0.12"
  • 5:15 am 8:35 pm CDT
ThuJun 26.
  • 86°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 9mph SSW
  • Humidity: 67%
  • UV index: 8
  • Precip. probability: 44%
  • Precipitation: 0.24"
  • 5:15 am 8:35 pm CDT
FriJun 27.
  • 84°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 9mph WSW
  • Humidity: 65%
  • UV index: 7
  • Precip. probability: 40%
  • Precipitation: 0.2"
  • 5:16 am 8:35 pm CDT
SatJun 28.
  • 84°F
  • 68°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 11mph SW
  • Humidity: 64%
  • UV index: 8
  • Precip. probability: 35%
  • Precipitation: 0.24"
  • 5:16 am 8:35 pm CDT
SunJun 29.
  • 82°F
  • 64°F
AM Thunderstorms
AM Thunderstorms
  • Wind: 10mph SW
  • Humidity: 67%
  • UV index: 8
  • Precip. probability: 43%
  • Precipitation: 0.16"
  • 5:16 am 8:34 pm CDT
Over the next ten days, a mix of stormy, bright and showery weather is predicted.
Rainfall is forecasted for Friday, Tuesday through next Sunday. With light precipitation of 0.24", Thursday and next Saturday will be the wettest days.
Substantial differences in temperature are forecasted over the next several days. Forecast highs will fluctuate between 82.4°F and 96.8°F, while the difference in minimum temperatures will be also substantial, as temperatures overnight will fluctuate from 64.4°F up to 77°F.
With a maximum temperature of 96.8°F, Saturday through Monday will be the hottest days; with a maximum temperature of 82.4°F, Wednesday and next Sunday will be the coldest days.
Including the humidity's impact, the maximum feel-like temperature may increase significantly and range between a hot 86°F and a life-threatening 118.4°F.
Updated: Jun 20, 2025 @ 15:34:45 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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