Weather forecast for tomorrowMarengo, IL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 16mphSSW 206°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
On Sunday, October 18, sunny and dry conditions are also anticipated.
The temperature will fluctuate from a high of a breezy 64.4°F to a low of a cold 39.2°F.
Tomorrow, the forecasted temperature will be relatively higher than the standard October high of 58.8°F.
Sunrise will be at 7:10 am and sunset at 6:08 pm; tomorrow's daylight will last for 10h and 57min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 39°C.

Chance of precipitation

Highest chance: 6 am 3%.

Hourly weather forecast

  • 12 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 204°
  • Humidity: 70%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 208°
  • Humidity: 74%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 208°
  • Humidity: 77%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 39°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphSSW 205°
  • Humidity: 77%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:10 am
  • 8 am
  • 41°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphSSW 204°
  • Humidity: 77%
  • 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: 13mphSSW 207°
  • Humidity: 58%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSSW 209°
  • Humidity: 46%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSSW 210°
  • Humidity: 40%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 15mphSSW 204°
  • Humidity: 40%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphSSW 192°
  • Humidity: 46%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:08 pm
  • 8 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphS 190°
  • Humidity: 58%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 199°
  • Humidity: 64%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a cloudless sky and mainly sunshiny weather are expected.
The temperature will be between the lowest temperature of 39.2°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature will be a few degrees higher than October's average high of 58.8°F. Tomorrow, the temperature is expected to be also a couple of degrees lower than October's normal minimum of 43.2°F.
Updated: Oct 17, 2026 @ 17:41:34 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Marengo, expect bright skies and plenty of sunshine.

Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 39.2°F.
The maximum temperature will be moderately higher than the average highest temperature of 58.8°F in October. Tomorrow, the lowest temperature will be also moderately lower than the average low temperature.

On Sunday, in Marengo, sunrise will be at 7:10 am and sunset at 6:08 pm (CDT).

In Marengo, Illinois, tomorrow, there will be 10h and 57min of daylight.