How is the weather in Lannon, WI?

At 3:13 AM on Wed, Sep 17, 2025 it is clear and 57 degrees Fahrenheit, feeling like 57 degrees.

Lannon, WI Weather Forecast and Current Conditions (53046)

57°F
Feels Like 57°F

Humidity 96% Dew Point 56°F Wind Calm 0 MPH Barometer 29.95 in.760.7 mm

Solar Rad 0 w/m2 UV Index 0

Report from 3 miles NE of central Lannon at 3:13 AM Wed, Sep 17, 2025

Current Weather

57°F
Feels Like 57°F

Humidity 96% Dew Point 56°F Wind Calm 0 MPH Barometer 29.95 in.760.7 mm

Solar Rad 0 w/m2 UV Index 0

Report from 3 miles NE of central Lannon at 3:13 AM Wed, Sep 17, 2025

Forecast at a Glance

WedSep 17

83°

60°

ThuSep 18

10%

80°

59°

FriSep 19

10%

75°

60°

SatSep 20

30%

76°

60°

SunSep 21

30%

77°

61°

MonSep 22

30%

77°

59°

TueSep 23

20%

74°

This Date in Weather History

1987 - Thunderstorms produced large hail, damaging winds, and heavy rain in the northeastern U.S. Heavy rain in southwestern Pennsylvania forced evacuation of twenty homes along Four Mile Run Creek, near Darlington. Harrisburg PA established a record for the date with 2.11 inches of rain. A cold front in the central U.S. brought freezing temperatures to parts of Montana and Wyoming.

Lannon 7 Day Weather Forecast Details

Wednesday Sep 17

Day: Patchy fog before 7am. Sunny, with a high near 83. South wind 0 to 5 mph.

Night: Mostly clear, with a low around 60. Southwest wind 0 to 5 mph.

Thursday Sep 18

Day: Mostly sunny. High near 80, with temperatures falling to around 74 in the afternoon. North wind 0 to 10 mph.

Night: Partly cloudy, with a low around 59. Northeast wind 5 to 10 mph.

Friday Sep 19

Day: Mostly sunny. High near 75, with temperatures falling to around 70 in the afternoon. East wind 5 to 10 mph.

Night: A slight chance of rain showers after 7pm. Mostly cloudy, with a low around 60. East wind 5 to 10 mph. Chance of precipitation is 20%.

Saturday Sep 20

Day: A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 76. Southeast wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Night: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

Sunday Sep 21

Day: A chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 30%.

Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

Monday Sep 22

Day: A chance of rain showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.

Night: A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

Tuesday Sep 23

Day: A slight chance of rain showers. Mostly sunny, with a high near 74. Chance of precipitation is 20%.

Sun & Moon Monthly

First Light 6:07 AM

Sunrise 6:35 AM

Sunset 7:01 PM

Last Light 7:29 PM

Moonrise 1:46 AM

Moonset 5:23 PM

Moon Phase

Local Parks Weather - Plan Ahead to Enjoy Your Day

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