Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

52°F

11°C

Humidity 67%
Wind Speed NW 7 mph
Barometer 30.05 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 8 Oct 7:45 am CDT
Extended Forecast for

Lannon WI

  • Today

    Today: Sunny, with a high near 67. West wind 5 to 10 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 3pm.  Mostly sunny, with a high near 68. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 68 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 7pm.  Mostly cloudy, then gradually becoming clear, with a low around 57. Southeast wind around 5 mph.

    Low: 57 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. South wind 10 to 15 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 58. South wind 5 to 10 mph.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 72. South wind around 5 mph.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55. Calm wind becoming southwest around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 67. West wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 47. Calm wind.
Friday
A 40 percent chance of showers, mainly after 3pm. Mostly sunny, with a high near 68. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Friday Night
A 30 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 57. Southeast wind around 5 mph.
Saturday
Sunny, with a high near 80. South wind 10 to 15 mph.
Saturday Night
Mostly cloudy, with a low around 58. South wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 72. South wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 55. Calm wind becoming southwest around 5 mph.
Columbus Day
Partly sunny, with a high near 74.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Lannon WI
 43.14°N 88.18°W (Elev. 912 ft)
7:33 am CDT Oct 8, 2026
7am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database