Weather forecast for todayMarietta, IL

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 6:57 pm CDT

  • 55°F
  • Feels like:
    54°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 5mphSSE 150°
  • Humidity: 53%
  • Dewpoint: 39°F
  • Pressure: 30.34"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
At the moment, perfect visibility under a vast, clear sky.
The temperature is a mild 55.4°F, and the felt air temperature is almost the same at 53.6°F. The current temperature is still far from minimum-forecasted 35.6°F.

Sunday Oct 18, 2026

  • min.
  • 36°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphS 171°
  • Humidity: 82%
  • UV index: 0
  • Sunrise: 7:16 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
For the rest of Sunday, the weather will remain pristine and clear.
The lowest temperature will be an icy 35.6°F.
Sunrise was at 7:16 am and sunset at 6:17 pm; the daylight lasted for 11h and 1min.

Hourly overview

Hourly temperatures

Warmest hour: 7 pm 55°C.
Coldest period: 2 am - 3 am 41°C.

Chance of precipitation

Highest chance: 2 am - 3 am 4%.

Hourly weather forecast

  • 7 pm
  • 55°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSSE 163°
  • Humidity: 54%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSSE 167°
  • Humidity: 64%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSSE 167°
  • Humidity: 69%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSSE 168°
  • Humidity: 75%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSE 168°
  • Humidity: 79%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 169°
  • Humidity: 82%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 169°
  • Humidity: 86%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphS 170°
  • Humidity: 91%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 3 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphS 177°
  • Humidity: 92%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphS 184°
  • Humidity: 94%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 5 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphS 178°
  • Humidity: 97%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
During the evening and overnight hours, the weather will be unstable. The temperature will vary between a maximum of 55.4°F and a minimum of 46.4°F.
Updated: Oct 18, 2026 @ 23:57:32 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (6:57 pm CDT) it is 55.4°F in Marietta.

On Sunday, enjoy a day of sunshine and clear skies.

On Sunday, in Marietta, sunrise was at 7:16 am and sunset at 6:17 pm (CDT).

Today, the daylight lasted for 11h and 1min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

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Marietta, Illinois, USA

  • en: Marietta, Illinois, USA
  • es: Marietta, Illinois, EE.UU.
  • hr: Marijeta, Ilinois, SAD
  • mk: Marijeta, Ilinois, SAD
  • sr: Marijeta, Ilinois, SAD
  • zh: 玛丽埃塔, 伊利诺伊, 美国
  • Latitude: 40.501152°
  • Longitude: -90.392626°
  • Elevation: 650 ft
  • Current time: 7:28pm CDT
  • Sunrise: 7:16 am CDT
  • Sunset: 6:17 pm CDT
  • Timezone: America/Chicago

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