Monthly outlook for Oconomowoc, WI: average high 53.6°, average low 43.8°. That is 2.4° above the climate normal for October. Precipitation is expected on 8 days (about 4.4 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 29 October (65.8°), the coolest 13 November (34.1°).
53.6°/43.8°
Average high / low
+2.4°
Above normal
8 / 5
Wet days / normal
4.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
59°
51.3°
+4.3°
8 November – 17 November
44.8°
45.6°
-0.5°
18 November – 27 November
at normal
41.8°
—
October records over 66 years
84.9°3 October 2025All-time high
23°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — North Prairie (12 mi).
Fri, 3057° / 43°0
57 °
Oconomowoc, Friday, 30 October
Overcast. High 57°, low 43°.
Pressure30.36 inHg
Wind4.9 mph E
Humidity58%
Visibility6.2 mi
Dew point40°
Sat, 3158° / 49°0.01
58 °
Oconomowoc, Saturday, 31 October
Light rain. High 58°, low 49°.
Pressure30.33 inHg
Wind9.1 mph S
Humidity69%
Visibility6.2 mi
Dew point47°
Sun, 0165° / 46°0
65 °
Oconomowoc, Sunday, 1 November
Clear. High 65°, low 46°.
Pressure30.30 inHg
Wind4 mph E
Humidity78%
Visibility6.2 mi
Dew point53°
Mon, 0262° / 56°0.58
62 °
Oconomowoc, Monday, 2 November
Rain. High 62°, low 56°.
Pressure30.00 inHg
Wind17.9 mph S
Humidity76%
Visibility—
Dew point54°
Tue, 0362° / 57°1.39
62 °
Oconomowoc, Tuesday, 3 November
Rain. High 62°, low 57°.
Pressure29.94 inHg
Wind16.6 mph N
Humidity72%
Visibility—
Dew point48°
Wed, 0460° / 58°0.26
60 °
Oconomowoc, Wednesday, 4 November
Light rain. High 60°, low 58°.
Pressure29.83 inHg
Wind13.2 mph SE
Humidity95%
Visibility—
Dew point58°
Thu, 0561° / 54°0.65
61 °
Oconomowoc, Thursday, 5 November
Rain. High 61°, low 54°.
Pressure29.53 inHg
Wind10.1 mph E
Humidity95%
Visibility—
Dew point58°
Fri, 0652° / 37°0.08
52 °
Oconomowoc, Friday, 6 November
Light rain. High 52°, low 37°.
Pressure29.91 inHg
Wind18.9 mph N
Humidity82%
Visibility—
Dew point37°
Sat, 0747° / 35°0
47 °
Oconomowoc, Saturday, 7 November
Partly cloudy. High 47°, low 35°.
Pressure30.30 inHg
Wind11 mph NE
Humidity61%
Visibility—
Dew point32°
Sun, 0848° / 35°0
48 °
Oconomowoc, Sunday, 8 November
Overcast. High 48°, low 35°.
Pressure30.24 inHg
Wind5.2 mph N
Humidity63%
Visibility—
Dew point35°
Mon, 0948° / 37°0.42
48 °
Oconomowoc, Monday, 9 November
Rain. High 48°, low 37°.
Pressure29.94 inHg
Wind7.5 mph E
Humidity63%
Visibility—
Dew point35°
Tue, 1043° / 37°0.84
43 °
Oconomowoc, Tuesday, 10 November
Snow. High 43°, low 37°.
Pressure29.62 inHg
Wind16.2 mph N
Humidity97%
Visibility—
Dew point36°
Wed, 1143° / 38°0.02
43 °
Oconomowoc, Wednesday, 11 November
Light rain. High 43°, low 38°.
Pressure29.65 inHg
Wind14.2 mph W
Humidity75%
Visibility—
Dew point35°
Thu, 1244° / 38°0.03
44 °
Oconomowoc, Thursday, 12 November
Light rain. High 44°, low 38°.
Pressure29.77 inHg
Wind14.1 mph NW
Humidity89%
Visibility—
Dew point37°
Fri, 1342° / 34°0
42 °
Oconomowoc, Friday, 13 November
Overcast. High 42°, low 34°.
Pressure29.94 inHg
Wind10.6 mph W
Humidity60%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1445° / 32°0.04
45 °
Oconomowoc, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation22%
Record high66° (1971)
Record low11° (1995)
Sun, 1545° / 33°0.06
45 °
Oconomowoc, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high68° (2025)
Record low14° (1995)
Mon, 1645° / 33°0.05
45 °
Oconomowoc, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation15%
Record high61° (1988)
Record low21° (1989)
Tue, 1745° / 33°0.08
45 °
Oconomowoc, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation25%
Record high68° (2016)
Record low14° (2014)
Wed, 1845° / 33°0.09
45 °
Oconomowoc, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation32%
Record high64° (1975)
Record low11° (2014)
Thu, 1944° / 32°0.05
44 °
Oconomowoc, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.05 in
Chance of precipitation28%
Record high62° (1985)
Record low15° (2014)
Fri, 2043° / 32°0.06
43 °
Oconomowoc, Friday, 20 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.06 in
Chance of precipitation33%
Record high61° (1982)
Record low11° (2022)
Sat, 2142° / 30°0.09
42 °
Oconomowoc, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.09 in
Chance of precipitation25%
Record high63° (1990)
Record low9° (1964)
Sun, 2241° / 29°0.03
41 °
Oconomowoc, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high61° (1990)
Record low9° (2015)
Mon, 2342° / 30°0.07
42 °
Oconomowoc, Monday, 23 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation32%
Record high63° (2003)
Record low6° (1989)
Tue, 2440° / 29°0.06
40 °
Oconomowoc, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.06 in
Chance of precipitation28%
Record high58° (2017)
Record low9° (1989)
Wed, 2541° / 30°0.07
41 °
Oconomowoc, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.07 in
Chance of precipitation33%
Record high56° (1966)
Record low13° (2014)
Thu, 2640° / 29°0.11
40 °
Oconomowoc, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.11 in
Chance of precipitation38%
Record high61° (1990)
Record low1° (1977)
Fri, 2739° / 28°0.17
39 °
Oconomowoc, Friday, 27 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.17 in
Chance of precipitation47%
Record high63° (1990)
Record low6° (1977)
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 Oconomowoc, 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 Oconomowoc, 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.