Weather in Lannon, WI
Updated 2026-09-26 09:00 local time · ZIP codes 53046
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
59°16% rain
60°9% rain61°12% rain62°12% rain63°8% rain
63°3% rain
63°2% rain62°2% rain60°12% rain58°15% rain
58°18% rain57°19% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 19%).
It feels like 54°F with winds near 7 mph.
63°F, 2% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 13 mph.
Current temperature is 59°F, wind 7 mph, rain chance up to 19%.
UV index is 1.
Local weather characteristics in Lannon
Wisconsin has warm summers, cold winters and strong Great Lakes influence near Lakes Michigan and Superior. Lake-effect snow can be important in favored areas.
Lannon is part of the Midwest weather region. The forecast point is near 43.15°N latitude and 88.17°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Lannon weather today
Overcast and 59°F in Lannon, WI. Today's high is 63°F with a 9% rain chance. Winds are around 7 mph with gusts near 13 mph. Relative humidity is 63%, pressure is 30.22 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Lannon
Sunrise is at 06:44 AM and sunset is at 06:43 PM. Tomorrow's forecast calls for Overcast with a high near 67°F and a low near 54°F. The maximum rain chance is 13%.