As of 13:43 CDT

Weather in Marengo, IA

59°Current weather

Marengo, Thursday, 15 October, 13:43

Rain. Feels like 59°. High 60°, low 51°.

Pressure29.88 inHg
Wind4.2 mph SW
Humidity91%
Visibility6.2 mi
Dew point56°

Monthly outlook for Marengo, IA: average high 64.1°, average low 49.9°. That is 2.9° above the climate normal for October. Precipitation is expected on 9 days (about 1.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 22 October (70.9°), the coolest 17 October (35.5°).

64.1°/49.9°
Average high / low
+2.9°
Above normal
9 / 4
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October64°60.2°+2.1°
25 October – 3 November64.2°55.8°+4.7°
4 November – 13 Novemberat normal50.2°—

October records over 66 years

90.3°6 October 1963All-time high
17.4°30 October 1980All-time low

Climate normals and records are computed from the nearest reference point — Ladora (7 mi).

Fri, 1653° / 42°0.04Light rain
53 °Light rain

Marengo, Friday, 16 October

Light rain. High 53°, low 42°.

Pressure30.30 inHg
Wind22.3 mph N
Humidity57%
Visibility6.2 mi
Dew point37°
Sat, 1758° / 36°0Clear
58 °Clear

Marengo, Saturday, 17 October

Clear. High 58°, low 36°.

Pressure30.53 inHg
Wind9.8 mph SW
Humidity45%
Visibility6.2 mi
Dew point33°
Sun, 1863° / 43°0Clear
63 °Clear

Marengo, Sunday, 18 October

Clear. High 63°, low 43°.

Pressure30.33 inHg
Wind13.9 mph S
Humidity58%
Visibility6.2 mi
Dew point43°
Mon, 1963° / 45°0.03Light rain
63 °Light rain

Marengo, Monday, 19 October

Light rain. High 63°, low 45°.

Pressure30.27 inHg
Wind9 mph S
Humidity62%
Visibility6.2 mi
Dew point45°
Tue, 2068° / 49°0.05Light rain
68 °Light rain

Marengo, Tuesday, 20 October

Light rain. High 68°, low 49°.

Pressure30.27 inHg
Wind7.5 mph S
Humidity58%
Visibility—
Dew point48°
Wed, 2171° / 51°0Clear
71 °Clear

Marengo, Wednesday, 21 October

Clear. High 71°, low 51°.

Pressure30.27 inHg
Wind10.6 mph SE
Humidity58%
Visibility—
Dew point51°
Thu, 2271° / 58°0.02Light rain
71 °Light rain

Marengo, Thursday, 22 October

Light rain. High 71°, low 58°.

Pressure30.15 inHg
Wind14.9 mph S
Humidity73%
Visibility—
Dew point57°
Fri, 2371° / 60°0Overcast
71 °Overcast

Marengo, Friday, 23 October

Overcast. High 71°, low 60°.

Pressure30.09 inHg
Wind17.7 mph S
Humidity47%
Visibility—
Dew point48°
Sat, 2465° / 51°0.05Light rain
65 °Light rain

Marengo, Saturday, 24 October

Light rain. High 65°, low 51°.

Pressure30.03 inHg
Wind18.5 mph NW
Humidity77%
Visibility—
Dew point57°
Sun, 2563° / 47°0Clear
63 °Clear

Marengo, Sunday, 25 October

Clear. High 63°, low 47°.

Pressure30.56 inHg
Wind7.4 mph E
Humidity44%
Visibility—
Dew point38°
Mon, 2660° / 44°0.06Light rain
60 °Light rain

Marengo, Monday, 26 October

Light rain. High 60°, low 44°.

Pressure30.39 inHg
Wind13.6 mph S
Humidity56%
Visibility—
Dew point42°
Tue, 2763° / 58°0.14Light rain
63 °Light rain

Marengo, Tuesday, 27 October

Light rain. High 63°, low 58°.

Pressure30.06 inHg
Wind14.2 mph SW
Humidity73%
Visibility—
Dew point54°
Wed, 2864° / 58°0.11Light rain
64 °Light rain

Marengo, Wednesday, 28 October

Light rain. High 64°, low 58°.

Pressure29.88 inHg
Wind17.4 mph S
Humidity81%
Visibility—
Dew point57°
Thu, 2969° / 55°0.09Light rain
69 °Light rain

Marengo, Thursday, 29 October

Light rain. High 69°, low 55°.

Pressure29.85 inHg
Wind12.1 mph S
Humidity78%
Visibility—
Dew point60°
Fri, 3066° / 51°0.13Light rain
66 °Light rain

Marengo, Friday, 30 October

Light rain. High 66°, low 51°.

Pressure29.65 inHg
Wind26.1 mph NW
Humidity83%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3155° / 41°0.14Climate normal
55 °Climate normal

Marengo, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.14 in
Chance of precipitation33%
Record high76° (1968)
Record low23° (1993)
Sun, 0155° / 40°0.2Climate normal
55 °Climate normal

Marengo, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.2 in
Chance of precipitation35%
Record high75° (2000)
Record low22° (2023)
Mon, 0253° / 39°0.09Climate normal
53 °Climate normal

Marengo, Monday, 2 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation33%
Record high73° (1964)
Record low16° (1991)
Tue, 0353° / 38°0.06Climate normal
53 °Climate normal

Marengo, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (1978)
Record low12° (1991)
Wed, 0453° / 38°0.11Climate normal
53 °Climate normal

Marengo, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation23%
Record high71° (2008)
Record low10° (1991)
Thu, 0552° / 37°0.07Climate normal
52 °Climate normal

Marengo, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation25%
Record high71° (2015)
Record low19° (1991)
Fri, 0652° / 37°0.06Climate normal
52 °Climate normal

Marengo, Friday, 6 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation23%
Record high71° (2020)
Record low17° (1991)
Sat, 0752° / 36°0.02Climate normal
52 °Climate normal

Marengo, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°
Average low36°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (2001)
Record low3° (1991)
Sun, 0851° / 36°0.04Climate normal
51 °Climate normal

Marengo, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high77° (1999)
Record low8° (1991)
Mon, 0951° / 36°0.09Climate normal
51 °Climate normal

Marengo, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation33%
Record high74° (1999)
Record low17° (1991)
Tue, 1049° / 34°0.09Climate normal
49 °Climate normal

Marengo, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (2012)
Record low14° (2018)
Wed, 1148° / 32°0.08Climate normal
48 °Climate normal

Marengo, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°
Average low32°
Average precipitation0.08 in
Chance of precipitation25%
Record high72° (1964)
Record low12° (2019)
Thu, 1246° / 31°0.07Climate normal
46 °Climate normal

Marengo, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (1964)
Record low4° (2019)
Fri, 1347° / 31°0.07Climate normal
47 °Climate normal

Marengo, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high75° (1999)
Record low6° (1986)

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.