Lannon, WI Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Lannon, WI in one place.
Patchy fog and a chance of showers and thunderstorms before 9am, then patchy fog and a slight chance of rain showers between 9am and 10am, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. West wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Lannon, 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 8, 2026 5:01 PM CDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Lannon, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 5:01 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lannon
Wednesday looks like the warmest upcoming period in Lannon at 90 degrees F.
Sunday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 20 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 5:01 PM CDT
- Coverage
- 6 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 8pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 90. South wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 1pm, then showers and thunderstorms likely. Mostly sunny, with a high near 84. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 56. Southwest wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunny, with a high near 80.
Mostly clear, with a low around 59.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 75. Chance of precipitation is 30%.
A slight chance of rain showers. Partly cloudy, with a low around 52. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Patchy Fog
|
84°F |
0 to 5 mph
W
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
64°F |
0 to 5 mph
E
|
|
Wednesday
Jun 10
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
90°F |
5 to 20 mph
S
|
|
Wednesday Night
Jun 10
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
66°F |
5 to 15 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
84°F |
5 to 15 mph
SW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms Likely
|
56°F |
5 to 15 mph
SW
|
|
Friday
Jun 12
|
Sunny
|
80°F |
5 to 15 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
59°F |
5 to 15 mph
W
|
|
Saturday
Jun 13
|
Mostly Sunny then Chance Showers And Thunderstorms
|
81°F |
5 to 15 mph
W
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
56°F |
5 to 10 mph
NW
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
75°F |
5 to 10 mph
NW
|
|
Sunday Night
Jun 14
|
Slight Chance Rain Showers
|
52°F |
0 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lannon.