Oconomowoc Lake, WI Weather Forecast
Local 7-day forecast
Patchy Fog then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Oconomowoc Lake, WI in one place.
Patchy fog and a chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms between noon and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 98. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Oconomowoc Lake, WI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 9, 2026 10:51 PM CDT.
The active forecast window currently covers Jun 10 to Jun 16, 2026 for Oconomowoc Lake, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 16, 2026
- Latest sync
- Jun 9, 2026 10:51 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Oconomowoc Lake
Wednesday looks like the warmest upcoming period in Oconomowoc Lake at 90 degrees F.
Sunday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 15 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 10:51 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- MKX
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and midnight, then showers and thunderstorms likely between midnight and 2am. Mostly cloudy, with a low around 67. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
A slight chance of rain showers between 7am and 1pm, then showers and thunderstorms. Partly sunny. High near 87, with temperatures falling to around 82 in the afternoon. South wind 0 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 57. Southwest wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunny, with a high near 79. West wind 5 to 15 mph.
Mostly clear, with a low around 57. West wind 5 to 10 mph.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 83. West wind 5 to 15 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
A chance of rain showers. Partly sunny, with a high near 75. Chance of precipitation is 40%.
A chance of rain showers. Partly cloudy, with a low around 51. Chance of precipitation is 30%.
A slight chance of rain showers. Partly sunny, with a high near 72. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 51. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Patchy Fog then Chance Showers And Thunderstorms
|
90°F |
5 to 15 mph
S
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
67°F |
5 to 15 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms
|
87°F |
0 to 15 mph
S
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
57°F |
5 to 15 mph
SW
|
|
Friday
Jun 12
|
Sunny
|
79°F |
5 to 15 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
57°F |
5 to 10 mph
W
|
|
Saturday
Jun 13
|
Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
5 to 15 mph
W
|
|
Saturday Night
Jun 13
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
57°F |
5 to 10 mph
NW
|
|
Sunday
Jun 14
|
Chance Rain Showers
|
75°F |
5 to 10 mph
N
|
|
Sunday Night
Jun 14
|
Chance Rain Showers
|
51°F |
0 to 10 mph
NE
|
|
Monday
Jun 15
|
Slight Chance Rain Showers
|
72°F |
0 to 10 mph
NW
|
|
Monday Night
Jun 15
|
Slight Chance Rain Showers then Partly Cloudy
|
51°F |
0 to 5 mph
W
|
|
Tuesday
Jun 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
74°F |
0 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Oconomowoc Lake.