Current Weather Forecast for Marietta

IL 61459  |   9:04am

Weather Conditions

66°

Feels Like 66°

Fog

60° 81°

0

UV Index

Moderate

Air Quality

E 5 mph

Wind

0 in

rain

Today

Fri 9/11

81°

Highest Temperature

15%

Cloudy skies early, then partly cloudy this afternoon. Areas of patchy fog. High 81F. Winds SE at 5 to 10 mph.

Tonight

Fri 9/11

63°

Lowest Temperature

9%

A few passing clouds, otherwise generally clear. Low 63F. Winds light and variable.

Tomorrow

Sat 9/12

86°

Highest Temperature

20%

Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High 86F. Winds WSW at 5 to 10 mph.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Marietta

Hourly Weather Forecast & Temperature

10AM

15%

69°

Feels Like 69°

Cloudy

SE 6 mph

Wind

1016 mb

Pressure

94%

Humidity

1

UV Index

7mi

Visibility

92%

Cloud Cover

11AM

15%

72°

Feels Like 72°

Partly Cloudy

SE 6 mph

Wind

1015 mb

Pressure

86%

Humidity

3

UV Index

10mi

Visibility

59%

Cloud Cover

12PM

2%

74°

Feels Like 74°

Partly Cloudy

SSE 6 mph

Wind

1015 mb

Pressure

79%

Humidity

6

UV Index

10mi

Visibility

54%

Cloud Cover

1PM

1%

76°

Feels Like 76°

Partly Cloudy

SSE 6 mph

Wind

1014 mb

Pressure

74%

Humidity

7

UV Index

10mi

Visibility

50%

Cloud Cover

2PM

1%

77°

Feels Like 77°

Partly Cloudy

SSE 6 mph

Wind

1013 mb

Pressure

70%

Humidity

6

UV Index

10mi

Visibility

45%

Cloud Cover

3PM

1%

79°

Feels Like 82°

Partly Cloudy

SSE 5 mph

Wind

1012 mb

Pressure

66%

Humidity

5

UV Index

10mi

Visibility

47%

Cloud Cover

4PM

80°

Feels Like 83°

Partly Cloudy

SSE 5 mph

Wind

1012 mb

Pressure

65%

Humidity

3

UV Index

10mi

Visibility

50%

Cloud Cover

5PM

1%

80°

Feels Like 83°

Partly Cloudy

SSE 5 mph

Wind

1011 mb

Pressure

64%

Humidity

1

UV Index

10mi

Visibility

48%

Cloud Cover

6PM

1%

78°

Feels Like 82°

Partly Cloudy

SSE 3 mph

Wind

1010 mb

Pressure

69%

Humidity

0

UV Index

10mi

Visibility

47%

Cloud Cover

7PM

3%

75°

Feels Like 79°

Mostly Sunny

SSE 2 mph

Wind

1010 mb

Pressure

79%

Humidity

0

UV Index

10mi

Visibility

29%

Cloud Cover

8PM

5%

71°

Feels Like 73°

Clear

SE 2 mph

Wind

1010 mb

Pressure

92%

Humidity

0

UV Index

10mi

Visibility

17%

Cloud Cover

9PM

5%

69°

Feels Like 71°

Mostly Clear

SSE 3 mph

Wind

1011 mb

Pressure

97%

Humidity

0

UV Index

10mi

Visibility

21%

Cloud Cover

Fri 9/11

Fri

15%

60°

81°

Clouds giving way to sun . Highs in the low 80s and lows in the low 60s.

83°

Feels Like

SE 6 mph

Wind

79%

Humidity

7

UV Index

6:38 AM

Sunrise

7:16 PM

Sunset

Sat 9/12

Sat

20%

63°

86°

Times of sun and clouds. Highs in the mid 80s and lows in the low 60s.

91°

Feels Like

WSW 8 mph

Wind

77%

Humidity

6

UV Index

6:39 AM

Sunrise

7:15 PM

Sunset

Sun 9/13

Sun

38%

59°

74°

Afternoon showers. Highs in the mid 70s and lows in the upper 50s.

74°

Feels Like

NNE 10 mph

Wind

66%

Humidity

4

UV Index

6:40 AM

Sunrise

7:13 PM

Sunset

Mon 9/14

Mon

24%

57°

79°

Times of sun and clouds. Highs in the upper 70s and lows in the low 70s.

80°

Feels Like

ESE 12 mph

Wind

75%

Humidity

6

UV Index

6:41 AM

Sunrise

7:11 PM

Sunset

Tue 9/15

Tue

51%

68°

83°

A few thunderstorms possible. Highs in the low 80s and lows in the upper 60s.

89°

Feels Like

WSW 8 mph

Wind

77%

Humidity

7

UV Index

6:42 AM

Sunrise

7:10 PM

Sunset

Wed 9/16

Wed

80%

67°

81°

Rain and thunder. Highs in the low 80s and lows in the upper 60s.

85°

Feels Like

ENE 5 mph

Wind

86%

Humidity

4

UV Index

6:43 AM

Sunrise

7:08 PM

Sunset

Thu 9/17

Thu

51%

64°

79°

Morning showers and thunderstorms. Highs in the upper 70s and lows in the low 60s.

82°

Feels Like

NE 8 mph

Wind

80%

Humidity

5

UV Index

6:44 AM

Sunrise

7:06 PM

Sunset

Fri 9/18

Fri

43%

62°

73°

Showers possible. Highs in the low 70s and lows in the low 60s.

75°

Feels Like

WSW 7 mph

Wind

91%

Humidity

5

UV Index

6:45 AM

Sunrise

7:05 PM

Sunset

Plans up in the air? We'll help you weather-proof them. Get the FREE FOX Weather app.

Download the App

Looking for homes in this area?

• 1853 E Hart Rd, Marietta, IL 61549
• 18881 E Hart Rd, Marietta, IL 61459
• 22561 N Cornerstone Rd, Marietta, IL 61459

Sponsored by Redfin. Housing data supplied by Redfin independent of FOX Weather.

Latest Stories from Illinois

Over 33M Americans from Texas to New Jersey face renewed flood threat as 1,000-mile long severe storms rage on

A sprawling flash flood threat stretches along a 1,300-mile corridor from North Texas to southern New Jersey Thursday, with some of the heaviest rain expected across the central Appalachians and Ohio Valley — a region that has dealt with repeated flooding in recent weeks.

3 belugas die at Chicago aquarium in just over a week, including 2 recently rescued from Canada

Two more beluga whales have died at Chicago’s Shedd Aquarium, just days after the facility announced the death of another whale that was recently rescued from Canada.

Ready for one last summer trip? Top 10 Labor Day destinations for 2026

Labor Day weekend 2026 is nearly here, and millions of people will take to the roads and sky to squeeze in one last trip before the warm weather slips away.

Beluga whale Peekachu dies weeks after rescue from shuttered Canadian marine park

A 23-year-old beluga whale named Peekachu has died at Chicago’s Shedd Aquarium, weeks after being moved from the closed Marineland of Canada as part of an ongoing international rescue operation.

Load More Stories