For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

Severe weather outbreak to peak Friday with tornadoes. Click for the forecast.

Marietta, IL

Location

Location News Videos

Use Current Location

Recent

Marietta

Illinois

No results found.

Try searching for a city, zip code or point of interest.

Create Your Account Unlock extended daily and hourly forecasts — all with your free account.

Have an account already? Log In

settings

Marietta, IL Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

1 PM

76°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™72°

WindW 15 mph

Air QualityFair

Max UV Index7.5 (High)

Wind Gusts23 mph

Humidity43%

Indoor Humidity43% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover52%

Visibility10 mi

Cloud Ceiling33500 ft

2 PM

78°

RealFeel® 80°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™74°

WindW 16 mph

Air QualityFair

Max UV Index6.8 (High)

Wind Gusts25 mph

Humidity41%

Indoor Humidity41% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

80°

RealFeel® 80°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™76°

WindW 16 mph

Air QualityPoor

Max UV Index5.0 (Moderate)

Wind Gusts24 mph

Humidity36%

Indoor Humidity36% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

81°

RealFeel® 81°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™78°

WindW 15 mph

Air QualityPoor

Max UV Index3.8 (Moderate)

Wind Gusts23 mph

Humidity33%

Indoor Humidity33% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

80°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™76°

WindWSW 13 mph

Air QualityPoor

Max UV Index2.5 (Low)

Wind Gusts17 mph

Humidity35%

Indoor Humidity35% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

78°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™75°

WindWSW 10 mph

Air QualityPoor

Max UV Index1.5 (Low)

Wind Gusts12 mph

Humidity40%

Indoor Humidity40% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

75°

RealFeel® 73°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™73°

WindSW 9 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity46%

Indoor Humidity46% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

72°

RealFeel® 70°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

WindS 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity47%

Indoor Humidity47% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

69°

RealFeel® 67°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

WindSSE 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity51%

Indoor Humidity51% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

67°

RealFeel® 64°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

WindSSE 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity56%

Indoor Humidity54% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

64°

RealFeel® 62°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Clear

WindSSE 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity63%

Indoor Humidity54% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Marietta

AccuWeather's hourly forecast for Marietta provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 76° with a RealFeel® of 79°, intermittent clouds with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Saturday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Cold snap, freeze to follow heat wave in part of eastern US

9 minutes ago

Winter Weather

Cars are emerging from a massive snow pile months after winter storms

3 hours ago

Hurricane

Super Typhoon Sinlaku causes serious damage to islands

23 hours ago

Severe Weather

Severe storms and flooding continue into the weekend

7 hours ago

Severe Weather

Tornadoes, grapefruit-size hail hit Iowa, Wisconsin amid week of storm...

1 day ago

Featured Stories

Weather News

7-month-old dies after being found in hot car in Tennessee

1 hour ago

Weather News

114 years later: How weather helped seal the Titanic’s fate

23 hours ago

Weather News

River flooding, possible dam failure threatens Wisconsin, Michigan

22 hours ago

Astronomy

Astronaut’s reunion with her dog is pure joy

2 days ago

Astronomy

Lyrids 2026: How to see the 1st meteor shower since January

3 days ago

World North America United States Illinois Marietta

Weather Near Marietta:

Bloomington, IL
Normal, IL
Peoria, IL

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.

Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...