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As of 09:09 CDT

Weather in Marengo, IL

70°Current weather

Marengo, Monday, 12 October, 09:09

Clear. Feels like 70°. High 84°, low 61°.

Pressure29.85 inHg
Wind8.4 mph SW
Humidity73%
Visibility6.2 mi
Dew point61°
Tue, 1379° / 62°0.14Rain
79 °Rain

Marengo, Tuesday, 13 October

Rain. High 79°, low 62°.

Pressure29.83 inHg
Wind10.4 mph W
Humidity64%
Visibility6.2 mi
Dew point60°
Wed, 1470° / 58°0Overcast
70 °Overcast

Marengo, Wednesday, 14 October

Overcast. High 70°, low 58°.

Pressure30.09 inHg
Wind6.9 mph E
Humidity61%
Visibility6.2 mi
Dew point56°
Thu, 1561° / 56°0.41Rain
61 °Rain

Marengo, Thursday, 15 October

Rain. High 61°, low 56°.

Pressure30.09 inHg
Wind8.5 mph E
Humidity84%
Visibility6.2 mi
Dew point55°
Fri, 1657° / 46°0Partly cloudy
57 °Partly cloudy

Marengo, Friday, 16 October

Partly cloudy. High 57°, low 46°.

Pressure30.36 inHg
Wind22.5 mph NW
Humidity49%
Visibility—
Dew point35°
Sat, 1759° / 37°0Clear
59 °Clear

Marengo, Saturday, 17 October

Clear. High 59°, low 37°.

Pressure30.45 inHg
Wind11.1 mph SW
Humidity37%
Visibility—
Dew point29°
Sun, 1859° / 42°0Clear
59 °Clear

Marengo, Sunday, 18 October

Clear. High 59°, low 42°.

Pressure30.24 inHg
Wind18.9 mph SW
Humidity41%
Visibility—
Dew point32°
Mon, 1960° / 47°0.09Light rain
60 °Light rain

Marengo, Monday, 19 October

Light rain. High 60°, low 47°.

Pressure30.18 inHg
Wind14.7 mph SW
Humidity50%
Visibility—
Dew point40°
Tue, 2062° / 51°0.19Rain
62 °Rain

Marengo, Tuesday, 20 October

Rain. High 62°, low 51°.

Pressure30.24 inHg
Wind6.5 mph NE
Humidity80%
Visibility—
Dew point53°
Wed, 2170° / 56°0Partly cloudy
70 °Partly cloudy

Marengo, Wednesday, 21 October

Partly cloudy. High 70°, low 56°.

Pressure30.30 inHg
Wind11.3 mph E
Humidity67%
Visibility—
Dew point56°
Thu, 2270° / 58°0Overcast
70 °Overcast

Marengo, Thursday, 22 October

Overcast. High 70°, low 58°.

Pressure30.30 inHg
Wind12.6 mph S
Humidity73%
Visibility—
Dew point57°
Fri, 2373° / 64°0.11Light rain
73 °Light rain

Marengo, Friday, 23 October

Light rain. High 73°, low 64°.

Pressure30.21 inHg
Wind13.5 mph SW
Humidity86%
Visibility—
Dew point64°
Sat, 2473° / 62°0.56Rain
73 °Rain

Marengo, Saturday, 24 October

Rain. High 73°, low 62°.

Pressure29.94 inHg
Wind22.3 mph SW
Humidity60%
Visibility—
Dew point57°
Sun, 2565° / 48°0.01Light rain
65 °Light rain

Marengo, Sunday, 25 October

Light rain. High 65°, low 48°.

Pressure29.91 inHg
Wind20.9 mph W
Humidity73%
Visibility—
Dew point44°
Mon, 2655° / 38°0Clear
55 °Clear

Marengo, Monday, 26 October

Clear. High 55°, low 38°.

Pressure30.18 inHg
Wind14.9 mph NW
Humidity45%
Visibility—
Dew point30°
Tue, 2759° / 42°0Overcast
59 °Overcast

Marengo, Tuesday, 27 October

Overcast. High 59°, low 42°.

Pressure29.80 inHg
Wind21.3 mph NW
Humidity55%
Visibility—
Dew point42°

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 Marengo, 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 Marengo, 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.