Weather forecast for tomorrowMarietta, IL
Weather forecast for tomorrow
Monday Oct 19, 2026
- 64°F
- 37°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 11mphS 184°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:16 am CDT
- Sunset: 6:17 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, the weather remains calm, bright, and sunny.
The temperature is predicted to vary significantly from a high of an enjoyable 64.4°F to a low of a wintry 37.4°F.
October's typical peak of 63°F is forecasted to be mirrored in the day’s high.
Sunrise will be at 7:16 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 1min.
The temperature is predicted to vary significantly from a high of an enjoyable 64.4°F to a low of a wintry 37.4°F.
October's typical peak of 63°F is forecasted to be mirrored in the day’s high.
Sunrise will be at 7:16 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 1min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 6 am 6%.
Hourly weather forecast
- 12 am
- 45°F
- Feels like:43°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphS 174°
- Humidity: 81%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:41°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphS 176°
- Humidity: 87%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphS 181°
- Humidity: 95%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphS 172°
- Humidity: 99%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:17 am
- 8 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphS 174°
- Humidity: 96%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphSSE 167°
- Humidity: 67%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 63°F
- Feels like:63°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphS 171°
- Humidity: 47%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 68°F
- Feels like:68°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 167°
- Humidity: 40%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 68°F
- Feels like:68°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 156°
- Humidity: 39%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphSE 126°
- Humidity: 52%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:15 pm
- 8 pm
- 52°F
- Feels like:52°F
Mostly Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphESE 109°
- Humidity: 74%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphE 100°
- Humidity: 83%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, primarily sunny and occasionally overcast weather is predicted.
The temperature will be between a minimum of 37.4°F and a maximum of 68°F. The warmest part of the day will be from 2 pm to 4 pm.
Tomorrow, the forecasted high aligns alike with the average peak in October. The minimum temperature tomorrow will be more comparable to November's average low of 35.1°F than October's average of 46.6°F.
The temperature will be between a minimum of 37.4°F and a maximum of 68°F. The warmest part of the day will be from 2 pm to 4 pm.
Tomorrow, the forecasted high aligns alike with the average peak in October. The minimum temperature tomorrow will be more comparable to November's average low of 35.1°F than October's average of 46.6°F.
Updated: Oct 18, 2026 @ 04:59:31 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, sunny and dry conditions are anticipated.
Tomorrow, the maximum temperature in Marietta will be 64.4°F, while the minimum temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 63°F in October. The lowest temperature will be notably lower than the average low of 46.6°F.
The highest temperature will be in line with the average maximum of 63°F in October. The lowest temperature will be notably lower than the average low of 46.6°F.
On Sunday, in Marietta, sunrise will be at 7:16 am and sunset at 6:17 pm (CDT).
In Marietta, Illinois, the length of the day tomorrow will be 11h and 1min.
