Local weather forecast

Weather in Lannon, WI

Updated 2026-08-11 12:00 local time · ZIP codes 53046

Light rain
Now69°F

Light rain

High / Low82° / 67°
Rain chance64%
Wind7 mph
Weather alerts

Active alerts

3
Dense Fog Advisory issued August 11 at 3:15AM CDT until August 11 at 10:00AM CDT by NWS Milwaukee/Sullivan WI

* WHAT...Dense fog will reduce visibility to 1 NM or less. * WHERE...Nearshore Waters from North Point Lighthouse to Wind Point. * WHEN...Until 10 AM CDT Tuesday. * IMPACTS...Low visibility will make navigation difficult.

Safety instructions

If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

Severe Thunderstorm Watch issued August 11 at 10:50AM CDT until August 11 at 2:00PM CDT by NWS Milwaukee/Sullivan WI

SEVERE THUNDERSTORM WATCH 563 REMAINS VALID UNTIL 2 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS NORTH POINT LIGHT TO WIND POINT WI WIND POINT WI TO WINTHROP HARBOR IL LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5NM OFFSHORE TO MID LAKE LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5NM OFFSHORE TO MID LAKE

Severe Thunderstorm Watch issued August 11 at 7:22AM CDT until August 11 at 2:00PM CDT by NWS Milwaukee/Sullivan WI

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 563 IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS NORTH POINT LIGHT TO WIND POINT WI WIND POINT WI TO WINTHROP HARBOR IL LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5NM OFFSHORE TO MID LAKE LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5NM OFFSHORE TO MID LAKE

Hourly

Next hours

NowLight rain69°63% rain
1 PMPatchy rain nearby79°36% rain
2 PMPartly Cloudy76°14% rain
3 PMSunny77°11% rain
4 PMSunny82°8% rain
5 PMSunny78°9% rain
6 PMSunny78°8% rain
7 PMSunny82°8% rain
8 PMSunny74°15% rain
9 PMClear71°18% rain
10 PMClear70°18% rain
11 PMClear69°18% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
82° 67°Sunny
Rain 64%Gust 8 mph
Tomorrow2026-08-12
Mist
82° 67°Mist
Rain 61%Gust 7 mph
Thursday2026-08-13
Sunny
81° 63°Sunny
Rain 6%Gust 9 mph
Conditions

Weather details

Feels like69°F
Humidity100%
Pressure29.93 inHg
Visibility4 mi
Wind7 mph SSE
Wind gusts13 mph
Precipitation0.03 in
UV index5
Daylight

Sunrise, sunset and moon

Sunrise05:54 AM
Sunset08:01 PM
Moonrise03:50 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 63% over the next 12 hours.

Light layers should work

It feels like 69°F with winds near 7 mph.

Best window: 6 PM

78°F, 8% rain chance and 7 mph wind.

Use extra caution while driving

Visibility is around 4 mi; gusts may reach 13 mph.

Running conditions are less comfortable

Current temperature is 69°F, wind 7 mph, rain chance up to 63%.

Moderate UV protection recommended

UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.

Lannon weather today

Light rain and 69°F in Lannon, WI. Today's high is 82°F with a 64% rain chance. Winds are around 7 mph with gusts near 13 mph. Relative humidity is 100%, pressure is 29.93 inHg, and visibility is about 4 miles.

Tonight and tomorrow in Lannon

Sunrise is at 05:54 AM and sunset is at 08:01 PM. Tomorrow's forecast calls for Mist with a high near 82°F and a low near 67°F. The maximum rain chance is 61%.

Nearby

Weather near Lannon

Wisconsin

Popular cities in Wisconsin

View state page →