Weather forecast for tomorrowRound Lake, IL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 63°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 16mphSSW 208°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
Tomorrow, in Round Lake, the weather remains calm, bright, and sunny.
The temperature will fluctuate from a high of a breezy 62.6°F to a low of a wintry 39.2°F.
Tomorrow, the expected temperature will match October's typical 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.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 61°C.
Coldest period: 3 am - 6 am 41°C.

Chance of precipitation

Highest chance: 6 am 4%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 210°
  • Humidity: 72%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSSW 209°
  • Humidity: 74%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphSSW 208°
  • Humidity: 78%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSW 207°
  • Humidity: 76%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:09 am
  • 8 am
  • 43°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphSSW 206°
  • Humidity: 75%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSSW 211°
  • Humidity: 57%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSSW 212°
  • Humidity: 46%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 15mphSSW 211°
  • Humidity: 41%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSSW 206°
  • Humidity: 40%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSSW 198°
  • Humidity: 49%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:05 pm
  • 8 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSSW 196°
  • Humidity: 59%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 204°
  • Humidity: 65%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a cloudless sky and mainly sunshiny weather are expected.
The temperature will vary between the lowest temperature of 39.2°F and the highest temperature of 60.8°F. The warmest part of the day will be from 2 pm to 4 pm.
Tomorrow, the temperature is forecasted to be alike with the usual maximum for October. The minimum temperature will be also a couple of degrees lower than October's average low of 45.1°F.
Updated: Oct 18, 2026 @ 01:06:19 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Round Lake, sun-filled conditions are expected to persist.

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

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

Tomorrow, the daylight will last for 10h and 57min.