Weather forecast for todayRound Lake, IL

Weather forecast for today

Current condition 5:56 am CDT

  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 0mphENE 60°
  • Humidity: 79%
  • Dewpoint: 36°F
  • Pressure: 30.4"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
At the moment, perfect visibility under a vast, clear sky.
The temperature is a frosty 42.8°F. The current temperature is almost at the minimum-expected 41°F for today.

Monday Oct 19, 2026

  • 68°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSW 203°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
On Monday, in Round Lake, predominantly sunny weather will make for pleasant outdoor conditions.
The day's temperature range will span from a high of a delightful 68°F to a minimum of a cold 41°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 72.3°F.
Sunrise will be at 7:10 am and sunset at 6:04 pm; the daylight will last for 10h and 54min.

Hourly overview

Hourly temperatures

Warmest period: 2 pm - 4 pm 66°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 12 am 6%.

Hourly weather forecast

  • 6 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSW 215°
  • Humidity: 80%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:10 am
  • 8 am
  • 45°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSW 214°
  • Humidity: 81%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSW 223°
  • Humidity: 59%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSW 220°
  • Humidity: 46%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSSW 200°
  • Humidity: 41%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphS 183°
  • Humidity: 41%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 134°
  • Humidity: 57%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:04 pm
  • 8 pm
  • 54°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphESE 114°
  • Humidity: 75%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Mostly Clear
Mostly Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 0mphSE 127°
  • Humidity: 87%
  • Pressure: 30.36"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Today, a combination of clear and dull weather is expected.
The temperature will vary between the highest temperature of 66.2°F and the lowest temperature of 41°F. The warmest part of the day will be from 1 pm to 4 pm.
The forecasted maximum is more resembling September's typical high of 72.3°F than the average for October. The nighttime low will be moderately lower than the typical October minimum temperature of 45.1°F.
Updated: Oct 19, 2026 @ 10:56:25 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (5:56 am CDT) it is 42.8°F in Round Lake.

On Monday, in Round Lake, mainly sunny conditions will dominate the day.

Today, the highest temperature will be 68°F, while the lowest temperature will be 41°F.
The maximum temperature will be a few degrees higher than the average highest temperature of 59°F in October. The lowest temperature will be also slightly cooler than the average low of 45.1°F.

On Monday, in Round Lake, sunrise will be at 7:10 am and sunset at 6:04 pm (CDT).

In Round Lake, today, there will be 10h and 54min of daylight.