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As of 01:55 CST

Weather in Marietta, IL

56°Current weather

Marietta, Sunday, 1 November, 01:55

Overcast. Feels like 55°. High 64°, low 56°.

Pressure30.27 inHg
Wind7.9 mph E
Humidity80%
Visibility6.2 mi
Dew point50°
Mon, 0265° / 56°0.2Rain
65 °Rain

Marietta, Monday, 2 November

Rain. High 65°, low 56°.

Pressure29.97 inHg
Wind13.4 mph SE
Humidity84%
Visibility6.2 mi
Dew point58°
Tue, 0368° / 63°1.18Heavy rain
68 °Heavy rain

Marietta, Tuesday, 3 November

Heavy rain. High 68°, low 63°.

Pressure29.77 inHg
Wind16.6 mph S
Humidity95%
Visibility2.7 mi
Dew point66°
Wed, 0463° / 55°0.04Light rain
63 °Light rain

Marietta, Wednesday, 4 November

Light rain. High 63°, low 55°.

Pressure29.71 inHg
Wind13.9 mph SW
Humidity58%
Visibility6.2 mi
Dew point45°
Thu, 0554° / 49°0.04Light rain
54 °Light rain

Marietta, Thursday, 5 November

Light rain. High 54°, low 49°.

Pressure29.77 inHg
Wind12.1 mph W
Humidity77%
Visibility—
Dew point45°
Fri, 0656° / 48°0Overcast
56 °Overcast

Marietta, Friday, 6 November

Overcast. High 56°, low 48°.

Pressure29.94 inHg
Wind10 mph NW
Humidity62%
Visibility—
Dew point41°
Sat, 0759° / 42°0Partly cloudy
59 °Partly cloudy

Marietta, Saturday, 7 November

Partly cloudy. High 59°, low 42°.

Pressure29.71 inHg
Wind17.6 mph NW
Humidity51%
Visibility—
Dew point38°
Sun, 0849° / 41°0Partly cloudy
49 °Partly cloudy

Marietta, Sunday, 8 November

Partly cloudy. High 49°, low 41°.

Pressure29.71 inHg
Wind18.2 mph NW
Humidity48%
Visibility—
Dew point29°
Mon, 0953° / 38°0Mostly clear
53 °Mostly clear

Marietta, Monday, 9 November

Mostly clear. High 53°, low 38°.

Pressure29.94 inHg
Wind15.4 mph NW
Humidity47%
Visibility—
Dew point30°
Tue, 1052° / 40°0Overcast
52 °Overcast

Marietta, Tuesday, 10 November

Overcast. High 52°, low 40°.

Pressure30.12 inHg
Wind13.3 mph NW
Humidity50%
Visibility—
Dew point32°
Wed, 1153° / 36°0Mostly clear
53 °Mostly clear

Marietta, Wednesday, 11 November

Mostly clear. High 53°, low 36°.

Pressure30.18 inHg
Wind7.4 mph NW
Humidity37%
Visibility—
Dew point24°
Thu, 1253° / 41°0.15Light rain
53 °Light rain

Marietta, Thursday, 12 November

Light rain. High 53°, low 41°.

Pressure29.91 inHg
Wind15.5 mph S
Humidity42%
Visibility—
Dew point29°
Fri, 1363° / 49°0Overcast
63 °Overcast

Marietta, Friday, 13 November

Overcast. High 63°, low 49°.

Pressure29.77 inHg
Wind11.4 mph S
Humidity59%
Visibility—
Dew point45°
Sat, 1454° / 44°0Mostly clear
54 °Mostly clear

Marietta, Saturday, 14 November

Mostly clear. High 54°, low 44°.

Pressure29.97 inHg
Wind14.6 mph N
Humidity52%
Visibility—
Dew point36°
Sun, 1552° / 36°0Clear
52 °Clear

Marietta, Sunday, 15 November

Clear. High 52°, low 36°.

Pressure30.15 inHg
Wind7.7 mph SE
Humidity50%
Visibility—
Dew point30°
Mon, 1657° / 42°0Overcast
57 °Overcast

Marietta, Monday, 16 November

Overcast. High 57°, low 42°.

Pressure30.03 inHg
Wind12.3 mph S
Humidity43%
Visibility—
Dew point33°

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.