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As of 15:46 CDT

Weather in Marengo, IA

83°Current weather

Marengo, Saturday, 8 August, 15:46

Clear. Feels like 87°. High 83°, low 62°.

Pressure30.03 inHg
Wind1.6 mph NE
Humidity66%
Visibility6.2 mi
Dew point70°
Sun, 0991° / 68°0Overcast
91 °Overcast

Marengo, Sunday, 9 August

Overcast. High 91°, low 68°.

Pressure29.80 inHg
Wind13.5 mph S
Humidity60%
Visibility6.2 mi
Dew point70°
Mon, 1088° / 72°0.02Light rain
88 °Light rain

Marengo, Monday, 10 August

Light rain. High 88°, low 72°.

Pressure29.85 inHg
Wind6.2 mph W
Humidity57%
Visibility6.2 mi
Dew point68°
Tue, 1192° / 71°0Overcast
92 °Overcast

Marengo, Tuesday, 11 August

Overcast. High 92°, low 71°.

Pressure29.77 inHg
Wind8.7 mph SW
Humidity53%
Visibility6.2 mi
Dew point69°
Wed, 1285° / 72°0.17Light rain
85 °Light rain

Marengo, Wednesday, 12 August

Light rain. High 85°, low 72°.

Pressure29.88 inHg
Wind4.7 mph SE
Humidity90%
Visibility6.2 mi
Dew point69°
Thu, 1378° / 64°0.15Light rain
78 °Light rain

Marengo, Thursday, 13 August

Light rain. High 78°, low 64°.

Pressure29.94 inHg
Wind12.2 mph NE
Humidity71%
Visibility—
Dew point63°
Fri, 1479° / 58°0Clear
79 °Clear

Marengo, Friday, 14 August

Clear. High 79°, low 58°.

Pressure30.18 inHg
Wind7 mph E
Humidity41%
Visibility—
Dew point49°
Sat, 1579° / 58°0Overcast
79 °Overcast

Marengo, Saturday, 15 August

Overcast. High 79°, low 58°.

Pressure30.24 inHg
Wind10.6 mph SE
Humidity52%
Visibility—
Dew point55°
Sun, 1680° / 64°0Overcast
80 °Overcast

Marengo, Sunday, 16 August

Overcast. High 80°, low 64°.

Pressure30.09 inHg
Wind12.2 mph S
Humidity65%
Visibility—
Dew point64°
Mon, 1789° / 68°0Overcast
89 °Overcast

Marengo, Monday, 17 August

Overcast. High 89°, low 68°.

Pressure29.94 inHg
Wind8.5 mph N
Humidity60%
Visibility—
Dew point69°
Tue, 1889° / 70°0Light rain
89 °Light rain

Marengo, Tuesday, 18 August

Light rain. High 89°, low 70°.

Pressure30.00 inHg
Wind9 mph SE
Humidity58%
Visibility—
Dew point67°
Wed, 1993° / 71°0.17Light rain
93 °Light rain

Marengo, Wednesday, 19 August

Light rain. High 93°, low 71°.

Pressure29.85 inHg
Wind14.8 mph N
Humidity50%
Visibility—
Dew point67°
Thu, 2083° / 65°0.08Light rain
83 °Light rain

Marengo, Thursday, 20 August

Light rain. High 83°, low 65°.

Pressure29.94 inHg
Wind10.6 mph NE
Humidity55%
Visibility—
Dew point62°
Fri, 2186° / 63°0Clear
86 °Clear

Marengo, Friday, 21 August

Clear. High 86°, low 63°.

Pressure29.97 inHg
Wind8.1 mph S
Humidity43%
Visibility—
Dew point57°
Sat, 2278° / 61°0.08Light rain
78 °Light rain

Marengo, Saturday, 22 August

Light rain. High 78°, low 61°.

Pressure29.94 inHg
Wind16.1 mph NE
Humidity70%
Visibility—
Dew point65°
Sun, 2373° / 46°0Mostly clear
73 °Mostly clear

Marengo, Sunday, 23 August

Mostly clear. High 73°, low 46°.

Pressure30.21 inHg
Wind11.4 mph E
Humidity38%
Visibility—
Dew point40°

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, IA 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, IA 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.