Lannon, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lannon, WI in one place.
Mostly sunny, with a high near 80. Southwest wind 0 to 10 mph.
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: Jul 23, 2026 12:24 PM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Lannon, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 12:24 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lannon
Monday looks like the warmest upcoming period in Lannon at 92 degrees F.
Friday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Monday at about 10 to 15 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 12:24 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
Partly cloudy, with a low around 59. Southwest wind 5 to 10 mph.
Mostly sunny, with a high near 85. Southwest wind 5 to 10 mph.
Partly cloudy, with a low around 67. West wind around 5 mph.
Mostly sunny, with a high near 91. Southwest wind around 5 mph.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 62.
Sunny, with a high near 84.
Mostly clear, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny
|
80°F |
0 to 10 mph
SW
|
|
Friday Night
Jul 24
|
Partly Cloudy
|
59°F |
5 to 10 mph
SW
|
|
Saturday
Jul 25
|
Mostly Sunny
|
85°F |
5 to 10 mph
SW
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
67°F |
5 mph
W
|
|
Sunday
Jul 26
|
Mostly Sunny
|
91°F |
5 mph
SW
|
|
Sunday Night
Jul 26
|
Slight Chance Showers And Thunderstorms
|
71°F |
5 to 10 mph
SW
|
|
Monday
Jul 27
|
Chance Showers And Thunderstorms
|
92°F |
10 to 15 mph
W
|
|
Monday Night
Jul 27
|
Chance Showers And Thunderstorms
|
66°F |
5 to 10 mph
NW
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
86°F |
5 mph
N
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
62°F |
0 to 5 mph
NE
|
|
Wednesday
Jul 29
|
Sunny
|
84°F |
0 to 5 mph
N
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
63°F |
0 to 5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lannon.