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As of 14:21 CST

Weather in Marietta, IL

65°Current weather

Marietta, Sunday, 1 November, 14:21

Overcast. Feels like 64°. High 65°, low 56°.

Pressure30.21 inHg
Wind10.6 mph SE
Humidity76%
Visibility6.2 mi
Dew point57°
Mon, 0268° / 58°0.02Light rain
68 °Light rain

Marietta, Monday, 2 November

Light rain. High 68°, low 58°.

Pressure29.97 inHg
Wind12.9 mph S
Humidity78%
Visibility4.4 mi
Dew point58°
Tue, 0371° / 62°1.05Heavy rain
71 °Heavy rain

Marietta, Tuesday, 3 November

Heavy rain. High 71°, low 62°.

Pressure29.77 inHg
Wind15.4 mph S
Humidity82%
Visibility6.2 mi
Dew point64°
Wed, 0463° / 54°0.01Light rain
63 °Light rain

Marietta, Wednesday, 4 November

Light rain. High 63°, low 54°.

Pressure29.71 inHg
Wind14.8 mph SW
Humidity64%
Visibility6.2 mi
Dew point45°
Thu, 0555° / 51°0.01Light rain
55 °Light rain

Marietta, Thursday, 5 November

Light rain. High 55°, low 51°.

Pressure29.74 inHg
Wind13.1 mph W
Humidity63%
Visibility6.2 mi
Dew point43°
Fri, 0655° / 50°0Overcast
55 °Overcast

Marietta, Friday, 6 November

Overcast. High 55°, low 50°.

Pressure29.94 inHg
Wind9.6 mph NW
Humidity68%
Visibility—
Dew point44°
Sat, 0761° / 46°0Overcast
61 °Overcast

Marietta, Saturday, 7 November

Overcast. High 61°, low 46°.

Pressure29.94 inHg
Wind13.2 mph NW
Humidity53%
Visibility—
Dew point41°
Sun, 0861° / 41°0Clear
61 °Clear

Marietta, Sunday, 8 November

Clear. High 61°, low 41°.

Pressure29.91 inHg
Wind16.1 mph W
Humidity34%
Visibility—
Dew point29°
Mon, 0963° / 40°0Clear
63 °Clear

Marietta, Monday, 9 November

Clear. High 63°, low 40°.

Pressure30.06 inHg
Wind8.5 mph W
Humidity38%
Visibility—
Dew point31°
Tue, 1060° / 42°0Overcast
60 °Overcast

Marietta, Tuesday, 10 November

Overcast. High 60°, low 42°.

Pressure30.21 inHg
Wind8.5 mph E
Humidity35%
Visibility—
Dew point28°
Wed, 1166° / 49°0Overcast
66 °Overcast

Marietta, Wednesday, 11 November

Overcast. High 66°, low 49°.

Pressure29.94 inHg
Wind10.8 mph NW
Humidity62%
Visibility—
Dew point48°
Thu, 1253° / 42°0Overcast
53 °Overcast

Marietta, Thursday, 12 November

Overcast. High 53°, low 42°.

Pressure30.15 inHg
Wind9.3 mph N
Humidity46%
Visibility—
Dew point31°
Fri, 1367° / 41°0Clear
67 °Clear

Marietta, Friday, 13 November

Clear. High 67°, low 41°.

Pressure29.94 inHg
Wind13.8 mph S
Humidity46%
Visibility—
Dew point38°
Sat, 1463° / 51°0.39Rain
63 °Rain

Marietta, Saturday, 14 November

Rain. High 63°, low 51°.

Pressure29.68 inHg
Wind17.6 mph SW
Humidity72%
Visibility—
Dew point52°
Sun, 1567° / 54°0Overcast
67 °Overcast

Marietta, Sunday, 15 November

Overcast. High 67°, low 54°.

Pressure29.56 inHg
Wind14 mph S
Humidity56%
Visibility—
Dew point49°
Mon, 1671° / 59°0Clear
71 °Clear

Marietta, Monday, 16 November

Clear. High 71°, low 59°.

Pressure29.38 inHg
Wind24.2 mph SW
Humidity34%
Visibility—
Dew point41°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Marietta, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Marietta, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.