Monthly outlook for Marengo, WI: average high 56.4°, average low 40.3°. That is 4.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 1.5 inches. The warmest day looks like 23 October (69.2°), the coolest 29 October (25.1°).
56.4°/40.3°
Average high / low
+4.2°
Above normal
2 / 6
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
58°
50.2°
+4.3°
29 October – 7 November
53.6°
45.2°
+4.7°
8 November – 17 November
at normal
39°
—
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).
Tue, 2065° / 45°0
65 °
Marengo, Tuesday, 20 October
Clear. High 65°, low 45°.
Pressure30.33 inHg
Wind8.2 mph S
Humidity54%
Visibility6.2 mi
Dew point46°
Wed, 2167° / 45°0
67 °
Marengo, Wednesday, 21 October
Clear. High 67°, low 45°.
Pressure30.21 inHg
Wind6.8 mph W
Humidity60%
Visibility6.2 mi
Dew point48°
Thu, 2262° / 40°0
62 °
Marengo, Thursday, 22 October
Mostly clear. High 62°, low 40°.
Pressure30.36 inHg
Wind0.6 mph N
Humidity73%
Visibility6.2 mi
Dew point48°
Fri, 2369° / 51°0
69 °
Marengo, Friday, 23 October
Overcast. High 69°, low 51°.
Pressure30.24 inHg
Wind11.6 mph S
Humidity56%
Visibility—
Dew point51°
Sat, 2468° / 58°0.03
68 °
Marengo, Saturday, 24 October
Light rain. High 68°, low 58°.
Pressure30.21 inHg
Wind14.9 mph S
Humidity54%
Visibility—
Dew point48°
Sun, 2559° / 45°0.09
59 °
Marengo, Sunday, 25 October
Light rain. High 59°, low 45°.
Pressure29.97 inHg
Wind17 mph SW
Humidity39%
Visibility—
Dew point31°
Mon, 2650° / 36°0.04
50 °
Marengo, Monday, 26 October
Snow. High 50°, low 36°.
Pressure30.12 inHg
Wind9.1 mph N
Humidity39%
Visibility—
Dew point24°
Tue, 2740° / 31°0
40 °
Marengo, Tuesday, 27 October
Overcast. High 40°, low 31°.
Pressure30.30 inHg
Wind10.3 mph NW
Humidity50%
Visibility—
Dew point21°
Wed, 2838° / 26°0
38 °
Marengo, Wednesday, 28 October
Overcast. High 38°, low 26°.
Pressure30.47 inHg
Wind8.7 mph NW
Humidity41%
Visibility—
Dew point14°
Thu, 2944° / 25°0
44 °
Marengo, Thursday, 29 October
Clear. High 44°, low 25°.
Pressure30.36 inHg
Wind5 mph W
Humidity27%
Visibility—
Dew point9°
Fri, 3049° / 27°0
49 °
Marengo, Friday, 30 October
Clear. High 49°, low 27°.
Pressure30.39 inHg
Wind14.9 mph S
Humidity26%
Visibility—
Dew point12°
Sat, 3151° / 40°0
51 °
Marengo, Saturday, 31 October
Light rain. High 51°, low 40°.
Pressure30.12 inHg
Wind17 mph S
Humidity34%
Visibility—
Dew point22°
Sun, 0161° / 44°0
61 °
Marengo, Sunday, 1 November
Overcast. High 61°, low 44°.
Pressure30.12 inHg
Wind12.9 mph S
Humidity43%
Visibility—
Dew point34°
Mon, 0263° / 52°0.02
63 °
Marengo, Monday, 2 November
Light rain. High 63°, low 52°.
Pressure29.74 inHg
Wind19.7 mph SW
Humidity54%
Visibility—
Dew point45°
Tue, 0354° / 45°0
54 °
Marengo, Tuesday, 3 November
Light rain. High 54°, low 45°.
Pressure30.30 inHg
Wind14.4 mph W
Humidity64%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1738° / 27°0.07
38 °
Marengo, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.07 in
Chance of precipitation23%
Record high64° (2001)
Record low6° (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.