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As of 08:06 CDT

Weather in Marengo, IL

54°Current weather

Marengo, Sunday, 11 October, 08:06

Clear. Feels like 54°. High 77°, low 54°.

Pressure30.00 inHg
Wind6.3 mph SE
Humidity88%
Visibility6.2 mi
Dew point52°
Mon, 1284° / 64°0Mostly clear
84 °Mostly clear

Marengo, Monday, 12 October

Mostly clear. High 84°, low 64°.

Pressure29.83 inHg
Wind11.5 mph SW
Humidity60%
Visibility6.2 mi
Dew point63°
Tue, 1377° / 64°0.04Light rain
77 °Light rain

Marengo, Tuesday, 13 October

Light rain. High 77°, low 64°.

Pressure29.83 inHg
Wind9.9 mph W
Humidity67%
Visibility6.2 mi
Dew point63°
Wed, 1469° / 56°0.01Light rain
69 °Light rain

Marengo, Wednesday, 14 October

Light rain. High 69°, low 56°.

Pressure30.09 inHg
Wind6.6 mph NE
Humidity65%
Visibility6.2 mi
Dew point56°
Thu, 1558° / 54°0.36Rain
58 °Rain

Marengo, Thursday, 15 October

Rain. High 58°, low 54°.

Pressure30.21 inHg
Wind12 mph E
Humidity75%
Visibility—
Dew point50°
Fri, 1658° / 40°0.05Light rain
58 °Light rain

Marengo, Friday, 16 October

Light rain. High 58°, low 40°.

Pressure30.42 inHg
Wind17.7 mph N
Humidity48%
Visibility—
Dew point37°
Sat, 1742° / 31°0Overcast
42 °Overcast

Marengo, Saturday, 17 October

Overcast. High 42°, low 31°.

Pressure30.39 inHg
Wind23.1 mph N
Humidity39%
Visibility—
Dew point16°
Sun, 1845° / 24°0Mostly clear
45 °Mostly clear

Marengo, Sunday, 18 October

Mostly clear. High 45°, low 24°.

Pressure30.50 inHg
Wind7.9 mph SW
Humidity31%
Visibility—
Dew point12°
Mon, 1957° / 35°0Partly cloudy
57 °Partly cloudy

Marengo, Monday, 19 October

Partly cloudy. High 57°, low 35°.

Pressure30.24 inHg
Wind18.7 mph SW
Humidity36%
Visibility—
Dew point25°
Tue, 2063° / 41°0Clear
63 °Clear

Marengo, Tuesday, 20 October

Clear. High 63°, low 41°.

Pressure30.15 inHg
Wind14.4 mph SW
Humidity39%
Visibility—
Dew point33°
Wed, 2167° / 47°0Clear
67 °Clear

Marengo, Wednesday, 21 October

Clear. High 67°, low 47°.

Pressure30.15 inHg
Wind18.1 mph SW
Humidity35%
Visibility—
Dew point35°
Thu, 2266° / 48°0Partly cloudy
66 °Partly cloudy

Marengo, Thursday, 22 October

Partly cloudy. High 66°, low 48°.

Pressure30.33 inHg
Wind12.3 mph NW
Humidity35%
Visibility—
Dew point37°
Fri, 2363° / 45°0Partly cloudy
63 °Partly cloudy

Marengo, Friday, 23 October

Partly cloudy. High 63°, low 45°.

Pressure30.30 inHg
Wind20.1 mph S
Humidity48%
Visibility—
Dew point39°
Sat, 2460° / 43°0.24Rain
60 °Rain

Marengo, Saturday, 24 October

Rain. High 60°, low 43°.

Pressure30.06 inHg
Wind22.4 mph W
Humidity57%
Visibility—
Dew point36°
Sun, 2550° / 34°0Overcast
50 °Overcast

Marengo, Sunday, 25 October

Overcast. High 50°, low 34°.

Pressure30.36 inHg
Wind9.1 mph W
Humidity49%
Visibility—
Dew point28°
Mon, 2655° / 38°0Clear
55 °Clear

Marengo, Monday, 26 October

Clear. High 55°, low 38°.

Pressure30.06 inHg
Wind13.6 mph N
Humidity49%
Visibility—
Dew point34°

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.