Monthly outlook for Marengo, WI: average high 61.5°, average low 45°. That is 6.8° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 6 days and 1.5 inches. The warmest day looks like 24 October (71.5°), the coolest 26 October (35.1°).
61.5°/45°
Average high / low
+6.8°
Above normal
2 / 6
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
62.1°
50.6°
+6.4°
28 October – 6 November
60.4°
45.6°
+8.2°
7 November – 16 November
at normal
39.5°
—
October records over 66 years
84.2°1 October 2023All-time high
13.5°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Mellen (10 mi).
Mon, 1958° / 42°0
58 °
Marengo, Monday, 19 October
Overcast. High 58°, low 42°.
Pressure30.39 inHg
Wind6.5 mph NE
Humidity56%
Visibility6.2 mi
Dew point42°
Tue, 2065° / 40°0
65 °
Marengo, Tuesday, 20 October
Mostly clear. High 65°, low 40°.
Pressure30.36 inHg
Wind9.2 mph S
Humidity58%
Visibility6.2 mi
Dew point47°
Wed, 2168° / 48°0
68 °
Marengo, Wednesday, 21 October
Overcast. High 68°, low 48°.
Pressure30.18 inHg
Wind4.5 mph SW
Humidity61%
Visibility6.2 mi
Dew point49°
Thu, 2265° / 46°0
65 °
Marengo, Thursday, 22 October
Clear. High 65°, low 46°.
Pressure30.30 inHg
Wind9.2 mph NE
Humidity56%
Visibility—
Dew point46°
Fri, 2368° / 49°0.03
68 °
Marengo, Friday, 23 October
Light rain. High 68°, low 49°.
Pressure30.24 inHg
Wind16 mph S
Humidity53%
Visibility—
Dew point46°
Sat, 2472° / 51°0.01
72 °
Marengo, Saturday, 24 October
Light rain. High 72°, low 51°.
Pressure29.83 inHg
Wind19.6 mph SW
Humidity45%
Visibility—
Dew point48°
Sun, 2547° / 37°0
47 °
Marengo, Sunday, 25 October
Overcast. High 47°, low 37°.
Pressure30.42 inHg
Wind13.8 mph NW
Humidity45%
Visibility—
Dew point25°
Mon, 2658° / 35°0
58 °
Marengo, Monday, 26 October
Overcast. High 58°, low 35°.
Pressure30.18 inHg
Wind14.1 mph SW
Humidity30%
Visibility—
Dew point23°
Tue, 2759° / 41°0.02
59 °
Marengo, Tuesday, 27 October
Light rain. High 59°, low 41°.
Pressure30.12 inHg
Wind11.5 mph SW
Humidity41%
Visibility—
Dew point33°
Wed, 2864° / 51°0
64 °
Marengo, Wednesday, 28 October
Mostly clear. High 64°, low 51°.
Pressure29.74 inHg
Wind14.8 mph S
Humidity62%
Visibility—
Dew point49°
Thu, 2960° / 51°0.83
60 °
Marengo, Thursday, 29 October
Rain. High 60°, low 51°.
Pressure29.44 inHg
Wind12.4 mph W
Humidity96%
Visibility—
Dew point55°
Fri, 3055° / 43°0
55 °
Marengo, Friday, 30 October
Partly cloudy. High 55°, low 43°.
Pressure29.83 inHg
Wind12.1 mph W
Humidity50%
Visibility—
Dew point34°
Sat, 3162° / 42°0
62 °
Marengo, Saturday, 31 October
Mostly clear. High 62°, low 42°.
Pressure29.94 inHg
Wind16.7 mph SE
Humidity38%
Visibility—
Dew point34°
Sun, 0156° / 52°0.33
56 °
Marengo, Sunday, 1 November
Rain. High 56°, low 52°.
Pressure29.59 inHg
Wind17.1 mph SE
Humidity60%
Visibility—
Dew point41°
Mon, 0265° / 47°0
65 °
Marengo, Monday, 2 November
Overcast. High 65°, low 47°.
Pressure29.77 inHg
Wind16.9 mph SW
Humidity40%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0344° / 33°0.04
44 °
Marengo, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.04 in
Chance of precipitation25%
Record high67° (1978)
Record low8° (1989)
Wed, 0444° / 32°0.07
44 °
Marengo, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high67° (2008)
Record low7° (1991)
Thu, 0544° / 32°0.07
44 °
Marengo, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.07 in
Chance of precipitation32%
Record high67° (2016)
Record low7° (1991)
Fri, 0644° / 32°0.05
44 °
Marengo, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high69° (2020)
Record low5° (1991)
Sat, 0743° / 31°0.04
43 °
Marengo, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.04 in
Chance of precipitation30%
Record high65° (2020)
Record low0° (1991)
Sun, 0842° / 30°0.05
42 °
Marengo, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high67° (2020)
Record low1° (1991)
Mon, 0942° / 30°0.11
42 °
Marengo, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.11 in
Chance of precipitation40%
Record high67° (1999)
Record low10° (2017)
Tue, 1039° / 29°0.18
39 °
Marengo, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.18 in
Chance of precipitation50%
Record high62° (2010)
Record low0° (2017)
Wed, 1138° / 27°0.1
38 °
Marengo, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.1 in
Chance of precipitation32%
Record high60° (1964)
Record low7° (2019)
Thu, 1237° / 26°0.11
37 °
Marengo, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.11 in
Chance of precipitation27%
Record high58° (2005)
Record low3° (2019)
Fri, 1338° / 26°0.07
38 °
Marengo, Friday, 13 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.07 in
Chance of precipitation30%
Record high63° (1999)
Record low1° (1986)
Sat, 1439° / 27°0.04
39 °
Marengo, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.04 in
Chance of precipitation30%
Record high61° (2001)
Record low8° (2018)
Sun, 1539° / 27°0.05
39 °
Marengo, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.05 in
Chance of precipitation30%
Record high61° (2001)
Record low4° (2014)
Mon, 1639° / 27°0.07
39 °
Marengo, Monday, 16 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.07 in
Chance of precipitation28%
Record high61° (2023)
Record low11° (2014)
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, WI 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, WI 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.