Climate Oconomowoc - Wisconsin
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 28 | 32 | 43 | 57 | 68 | 78 |
| Average low in ºF Av. low Lo | 10 | 14 | 25 | 37 | 47 | 56 |
| Av. precipitation in inch Av. precip. Pre. | 1.42 | 1.49 | 2.04 | 3.52 | 3.73 | 4.36 |
| Av. snowfall in inch Snowfall Sn | 11 | 8 | 5 | 2 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 82 | 80 | 73 | 60 | 45 | 31 |
| Average low in ºF Av. low Lo | 61 | 60 | 51 | 39 | 29 | 16 |
| Av. precipitation in inch Av. precip. Pre. | 4.09 | 4.25 | 3.61 | 2.88 | 2.36 | 1.83 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 2 | 12 |
What is the average weather in Oconomowoc, Wisconsin?
Oconomowoc experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm and fairly wet, with the most precipitation arriving in June. Winters are cold and snowy, bringing significant snowfall, while winter is the driest season overall. Precipitation is spread relatively evenly through the year, with winter moisture often arriving as snow.
Oconomowoc Climate Graph - Wisconsin Climate Chart
Daily normals Oconomowoc - Wisconsin - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 29.6 | 13.6 | 0.06 | 0.06 | 0.30 | 0.30 |
| 2 Jan | 29.4 | 13.4 | 0.11 | 0.11 | 0.70 | 0.70 |
| 3 Jan | 29.3 | 13.1 | 0.17 | 0.17 | 1.00 | 1.00 |
| 4 Jan | 29.1 | 12.9 | 0.23 | 0.23 | 1.30 | 1.30 |
| 5 Jan | 28.9 | 12.7 | 0.28 | 0.28 | 1.70 | 1.70 |
| 6 Jan | 28.8 | 12.4 | 0.33 | 0.33 | 2.00 | 2.00 |
| 7 Jan | 28.6 | 12.2 | 0.39 | 0.39 | 2.40 | 2.40 |
| 8 Jan | 28.5 | 12.0 | 0.44 | 0.44 | 2.70 | 2.70 |
| 9 Jan | 28.4 | 11.8 | 0.49 | 0.49 | 3.10 | 3.10 |
| 10 Jan | 28.2 | 11.6 | 0.55 | 0.55 | 3.40 | 3.40 |
| 11 Jan | 28.1 | 11.4 | 0.60 | 0.60 | 3.80 | 3.80 |
| 12 Jan | 28.0 | 11.2 | 0.66 | 0.66 | 4.20 | 4.20 |
| 13 Jan | 27.9 | 11.1 | 0.71 | 0.71 | 4.50 | 4.50 |
| 14 Jan | 27.8 | 10.9 | 0.77 | 0.77 | 4.90 | 4.90 |
| 15 Jan | 27.7 | 10.7 | 0.82 | 0.82 | 5.30 | 5.30 |
| 16 Jan | 27.7 | 10.6 | 0.87 | 0.87 | 5.60 | 5.60 |
| 17 Jan | 27.6 | 10.5 | 0.93 | 0.93 | 6.00 | 6.00 |
| 18 Jan | 27.6 | 10.4 | 0.98 | 0.98 | 6.30 | 6.30 |
| 19 Jan | 27.5 | 10.3 | 1.04 | 1.04 | 6.70 | 6.70 |
| 20 Jan | 27.5 | 10.2 | 1.09 | 1.09 | 7.10 | 7.10 |
| 21 Jan | 27.5 | 10.1 | 1.14 | 1.14 | 7.40 | 7.40 |
| 22 Jan | 27.5 | 10.1 | 1.19 | 1.19 | 7.80 | 7.80 |
| 23 Jan | 27.5 | 10.0 | 1.24 | 1.24 | 8.20 | 8.20 |
| 24 Jan | 27.5 | 10.0 | 1.29 | 1.29 | 8.50 | 8.50 |
| 25 Jan | 27.6 | 10.0 | 1.35 | 1.35 | 8.90 | 8.90 |
| 26 Jan | 27.6 | 10.0 | 1.40 | 1.40 | 9.30 | 9.30 |
| 27 Jan | 27.7 | 10.1 | 1.45 | 1.45 | 9.60 | 9.60 |
| 28 Jan | 27.8 | 10.1 | 1.50 | 1.50 | 10.00 | 10.00 |
| 29 Jan | 27.9 | 10.2 | 1.55 | 1.55 | 10.40 | 10.40 |
| 30 Jan | 28.0 | 10.3 | 1.60 | 1.60 | 10.70 | 10.70 |
| 31 Jan | 28.1 | 10.4 | 1.65 | 1.65 | 11.10 | 11.10 |
Weather history Oconomowoc - August 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Aug | 75.9 | 64.0 | 3.75 | 0.00 | 0.0 |
| 02 Aug | 73.0 | 64.0 | 1.50 | 0.00 | 0.0 |
| 03 Aug | 81.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 04 Aug | 84.9 | 62.1 | 0.00 | 0.00 | 0.0 |
| 05 Aug | 84.0 | 66.0 | 0.00 | 0.00 | 0.0 |
| 06 Aug | 78.1 | 63.0 | 0.00 | 0.00 | 0.0 |
| 07 Aug | 82.0 | 66.0 | 0.00 | 0.00 | 0.0 |
| 08 Aug | 84.9 | 64.9 | 0.00 | - | - |
| 09 Aug | 81.0 | 60.1 | 0.00 | - | - |
| 10 Aug | 77.0 | 66.0 | 0.66 | 0.00 | 0.0 |
| 11 Aug | 84.9 | 69.1 | 0.00 | 0.00 | 0.0 |
| 12 Aug | - | - | - | - | - |
| 13 Aug | - | - | - | - | - |
| 14 Aug | - | - | - | - | - |
| 15 Aug | - | - | - | - | - |
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| 28 Aug | - | - | - | - | - |
| 29 Aug | - | - | - | - | - |
| 30 Aug | - | - | - | - | - |
| 31 Aug | - | - | - | - | - |
Past weather Oconomowoc
| Aug 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 80.6 ºF | 28 ºF | |
| Average low temperature Av. low temp. | 63.8 ºF | 10 ºF | |
| Total precipitation Total precip. | 5.91 inch | 1.42 inch | |
| Total snowfall Total snowfall | 0.00 inch | 11 inch | |
| Highest max temperature Highest max temp. | 84.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 73.0 ºF | - | |
| Highest min temperature Highest min temp. | 69.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 57.0 ºF | - | |
Past weather August 2026 incomplete - Missing data
Geo Oconomowoc - Wisconsin
| Country | United States | |
|---|---|---|
| State | Wisconsin | |
| County | Waukesha | |
| City | Oconomowoc | |
| Zip Code | 53066 | |
| Longitude | -88.5 dec. degr. | |
| Latitude | 43.11 dec. degr. | |
| Altitude - Elevation | 823ft | |
| ICAO | - | |
| IATA | - |
Date and Time Oconomowoc - Wisconsin
| Local Time | 01:04 AM | |
|---|---|---|
| Sunrise | 05:58 AM | |
| Sunset | 07:58 PM | |
| Day/Night | Night | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of Oconomowoc - Wisconsin
USGS National Map — Open interactive map
Oconomowoc weather averages
| Annual high temperature | 56ºF |
| Annual low temperature | 37ºF |
| Average annual precip. | 35.58 inch |
| Av. annual snowfall | 40 inch |
Station Data
Monthly averages Oconomowoc
Longitude: -88.5, Latitude: 43.11
Average weather Oconomowoc, WI - 53066
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...