As of 21:15 CDT

Weather in Oconomowoc, WI

55°Current weather

Oconomowoc, Wednesday, 21 October, 21:15

Clear. Feels like 54°. High 71°, low 41°.

Pressure30.21 inHg
Wind2 mph N
Humidity77%
Visibility6.2 mi
Dew point48°

Monthly outlook for Oconomowoc, WI: average high 59.1°, average low 42.3°. That is 3.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 22 October (72.9°), the coolest 3 November (30.3°).

59.1°/42.3°
Average high / low
+3.1°
Above normal
4 / 5
Wet days / normal
1.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October62.6°54.9°+4.3°
31 October – 9 November53.2°50.2°+1.7°
10 November – 19 Novemberat normal44.8°—

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).

Thu, 2273° / 45°0Clear
73 °Clear

Oconomowoc, Thursday, 22 October

Clear. High 73°, low 45°.

Pressure30.27 inHg
Wind2.3 mph SE
Humidity62%
Visibility6.2 mi
Dew point54°
Fri, 2372° / 47°0Overcast
72 °Overcast

Oconomowoc, Friday, 23 October

Overcast. High 72°, low 47°.

Pressure30.30 inHg
Wind6.6 mph S
Humidity59%
Visibility6.2 mi
Dew point52°
Sat, 2467° / 51°0Overcast
67 °Overcast

Oconomowoc, Saturday, 24 October

Overcast. High 67°, low 51°.

Pressure30.36 inHg
Wind9.8 mph S
Humidity56%
Visibility6.2 mi
Dew point49°
Sun, 2568° / 53°0Overcast
68 °Overcast

Oconomowoc, Sunday, 25 October

Overcast. High 68°, low 53°.

Pressure30.36 inHg
Wind4.8 mph SW
Humidity61%
Visibility6.2 mi
Dew point51°
Mon, 2662° / 50°0Overcast
62 °Overcast

Oconomowoc, Monday, 26 October

Overcast. High 62°, low 50°.

Pressure30.36 inHg
Wind8.7 mph E
Humidity66%
Visibility—
Dew point49°
Tue, 2758° / 45°0.41Rain
58 °Rain

Oconomowoc, Tuesday, 27 October

Rain. High 58°, low 45°.

Pressure30.21 inHg
Wind9.8 mph SE
Humidity79%
Visibility—
Dew point51°
Wed, 2846° / 37°0.31Rain
46 °Rain

Oconomowoc, Wednesday, 28 October

Rain. High 46°, low 37°.

Pressure30.30 inHg
Wind12.1 mph N
Humidity48%
Visibility—
Dew point26°
Thu, 2952° / 33°0Clear
52 °Clear

Oconomowoc, Thursday, 29 October

Clear. High 52°, low 33°.

Pressure30.30 inHg
Wind7.9 mph SW
Humidity43%
Visibility—
Dew point27°
Fri, 3055° / 37°0Partly cloudy
55 °Partly cloudy

Oconomowoc, Friday, 30 October

Partly cloudy. High 55°, low 37°.

Pressure30.12 inHg
Wind17 mph SW
Humidity44%
Visibility—
Dew point31°
Sat, 3159° / 50°0.07Light rain
59 °Light rain

Oconomowoc, Saturday, 31 October

Light rain. High 59°, low 50°.

Pressure29.97 inHg
Wind21.2 mph SW
Humidity56%
Visibility—
Dew point42°
Sun, 0154° / 52°1.1Rain
54 °Rain

Oconomowoc, Sunday, 1 November

Rain. High 54°, low 52°.

Pressure29.85 inHg
Wind20.2 mph SW
Humidity94%
Visibility—
Dew point51°
Mon, 0251° / 37°0.01Light rain
51 °Light rain

Oconomowoc, Monday, 2 November

Light rain. High 51°, low 37°.

Pressure30.09 inHg
Wind18.8 mph NW
Humidity52%
Visibility—
Dew point30°
Tue, 0347° / 30°0Clear
47 °Clear

Oconomowoc, Tuesday, 3 November

Clear. High 47°, low 30°.

Pressure30.18 inHg
Wind16.4 mph W
Humidity38%
Visibility—
Dew point20°
Wed, 0454° / 34°0Overcast
54 °Overcast

Oconomowoc, Wednesday, 4 November

Overcast. High 54°, low 34°.

Pressure29.68 inHg
Wind21.9 mph SW
Humidity59%
Visibility—
Dew point37°
Thu, 0555° / 35°0.01Light rain
55 °Light rain

Oconomowoc, Thursday, 5 November

Light rain. High 55°, low 35°.

Pressure29.62 inHg
Wind24.4 mph W
Humidity56%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0649° / 37°0.08Climate normal
49 °Climate normal

Oconomowoc, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.08 in
Chance of precipitation30%
Record high69° (1975)
Record low18° (1991)
Sat, 0749° / 36°0.03Climate normal
49 °Climate normal

Oconomowoc, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (2020)
Record low10° (1991)
Sun, 0849° / 36°0.04Climate normal
49 °Climate normal

Oconomowoc, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (2020)
Record low12° (1991)
Mon, 0949° / 37°0.1Climate normal
49 °Climate normal

Oconomowoc, Monday, 9 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high73° (2020)
Record low19° (1991)
Tue, 1047° / 35°0.1Climate normal
47 °Climate normal

Oconomowoc, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation33%
Record high72° (2022)
Record low15° (2017)
Wed, 1145° / 33°0.07Climate normal
45 °Climate normal

Oconomowoc, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (1964)
Record low13° (2019)
Thu, 1243° / 32°0.05Climate normal
43 °Climate normal

Oconomowoc, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high43°
Average low32°
Average precipitation0.05 in
Chance of precipitation30%
Record high62° (1964)
Record low2° (2019)
Fri, 1344° / 31°0.04Climate normal
44 °Climate normal

Oconomowoc, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high66° (1989)
Record low7° (2019)
Sat, 1445° / 32°0.04Climate normal
45 °Climate normal

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°0.06Climate normal
45 °Climate normal

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°0.05Climate normal
45 °Climate normal

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°0.08Climate normal
45 °Climate normal

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°0.09Climate normal
45 °Climate normal

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°0.05Climate normal
44 °Climate normal

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)

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.