Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Overcast

64°F

18°C

Humidity	94%
Wind Speed	SW 9 mph
Barometer	29.67 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	18 Oct 9:45 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Lannon WI

Today
High: 74 °F
Mostly Sunny
Tonight
Low: 48 °F
Chance
Showers then
Showers
Sunday
High: 56 °F
Showers
Likely and
Breezy
Sunday Night
Low: 37 °F
Mostly Clear
Monday
High: 64 °F
Mostly Sunny
Monday Night
Low: 42 °F
Showers
Likely
Tuesday
High: 50 °F
Chance
Showers and
Breezy
Tuesday Night
Low: 37 °F
Slight Chance
Showers
Wednesday
High: 53 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 74. Southwest wind around 10 mph.

Tonight

A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 1am, then showers after 1am. Low around 48. South wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 56. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday Night

Mostly clear, with a low around 37. West wind 5 to 15 mph.

Monday

Mostly sunny, with a high near 64. South wind 5 to 15 mph.

Monday Night

Showers likely, mainly before 1am. Mostly cloudy, with a low around 42. South wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 50. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

Tuesday Night

A 20 percent chance of showers before 1am. Partly cloudy, with a low around 37. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Wednesday

Mostly sunny, with a high near 53.

Wednesday Night

Partly cloudy, with a low around 35.

Thursday

Areas of frost. Otherwise, sunny, with a high near 61.

Thursday Night

A 20 percent chance of showers. Partly cloudy, with a low around 40.

Friday

Mostly sunny, with a high near 63.