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 64. Northeast wind 5 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: Sep 22, 2026 11:14 AM CDT.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for Lannon, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 11:14 AM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lannon
Monday looks like the warmest upcoming period in Lannon at 71 degrees F.
Friday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 10 mph NE.
The forecast from Sep 23 through Sep 28 stays mostly dry.
Forecast Details
- Last updated
- Sep 22, 2026 11:14 AM 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 51. Northeast wind 0 to 5 mph.
Partly sunny, with a high near 63. East wind 0 to 5 mph.
Mostly cloudy, with a low around 50. East wind 0 to 5 mph.
Mostly sunny, with a high near 65. East wind 0 to 5 mph.
Partly cloudy, with a low around 48. East wind 0 to 5 mph.
Partly sunny, with a high near 66.
Mostly cloudy, with a low around 49.
Mostly cloudy, with a high near 69.
Mostly cloudy, with a low around 53.
Partly sunny, with a high near 71.
Mostly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Mostly Sunny
|
64°F |
5 to 10 mph
NE
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
51°F |
0 to 5 mph
NE
|
|
Thursday
Sep 24
|
Partly Sunny
|
63°F |
0 to 5 mph
E
|
|
Thursday Night
Sep 24
|
Mostly Cloudy
|
50°F |
0 to 5 mph
E
|
|
Friday
Sep 25
|
Mostly Sunny
|
65°F |
0 to 5 mph
E
|
|
Friday Night
Sep 25
|
Partly Cloudy
|
48°F |
0 to 5 mph
E
|
|
Saturday
Sep 26
|
Partly Sunny
|
66°F |
0 to 5 mph
NE
|
|
Saturday Night
Sep 26
|
Mostly Cloudy
|
49°F |
0 to 5 mph
SE
|
|
Sunday
Sep 27
|
Mostly Cloudy
|
69°F |
0 to 5 mph
S
|
|
Sunday Night
Sep 27
|
Mostly Cloudy
|
53°F |
0 mph
|
|
Monday
Sep 28
|
Partly Sunny
|
71°F |
0 to 5 mph
SW
|
|
Monday Night
Sep 28
|
Mostly Cloudy
|
56°F |
0 to 5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lannon.