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Sullivan, WI Weather Forecast

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Sullivan, WI Weather Forecast

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Sullivan WI weather - Mostly Cloudy - 41°F
Mostly Cloudy
41°F
Updated 10:43 am
Feels Like 33°F
Humidity 75%
Wind NNW 13 mph
Barometer  30.15 in
Dew Point 33°F
Sullivan WI weather - Mostly Cloudy - 5°C
Mostly Cloudy
5°C
Updated 10:43 am
Feels Like 1°C
Humidity 75%
Wind NNW 21 km/h
Barometer  102.1 kPa
Dew Point 1°C
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Sullivan Weather Forecast

REST OF TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT VETERANS DAY WEDNESDAY NIGHT
Sullivan, WI Weather - Rest Of Today Mostly Cloudy Sullivan, WI Weather - Tonight Clearing Sullivan, WI Weather - Saturday Partly Sunny Sullivan, WI Weather - Saturday Night Partly Cloudy Sullivan, WI Weather - Sunday Sunny Sullivan, WI Weather - Sunday Night Mostly Clear Sullivan, WI Weather - Monday Mostly Sunny Sullivan, WI Weather - Monday Night Mostly Clear Sullivan, WI Weather - Tuesday Sunny Sullivan, WI Weather - Tuesday Night Partly Cloudy Sullivan, WI Weather - Veterans Day Mostly Sunny Sullivan, WI Weather - Wednesday Night Partly Cloudy
Mostly Cloudy Clearing Partly Sunny Partly Cloudy Sunny Mostly Clear Mostly Sunny Mostly Clear Sunny Partly Cloudy Mostly Sunny Partly Cloudy
Hi: 45°FHi: 7°C
 Lo: 25°FLo: -4°C Hi: 50°FHi: 10°C
 Lo: 35°FLo: 2°C Hi: 59°FHi: 15°C
 Lo: 31°FLo: -1°C Hi: 61°FHi: 16°C
 Lo: 39°FLo: 4°C Hi: 59°FHi: 15°C
 Lo: 35°FLo: 2°C Hi: 55°FHi: 13°C
 Lo: 35°FLo: 2°C
POP = Probability of Precipitation.
Weather Outlook Updated: 930 AM CST Fri Nov 06 2026 Sullivan, WI Weather - WeatherWorld.com

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Issued: 635 AM CST Fri Nov 6 2026

Key Messages

  • Brisk northerly winds today. Overnight lows in the 20s tonight night into early Saturday.
  • Northerly gale force gusts for the open Lake Michigan today.

Aviation

... Issued 635 AM CST Fri Nov 6 2026

Low clouds with bases between 1800 and 2500 ft are spreading down into southeast WI this morning. This is due to strong low pressure over lower Michigan. The gusty north-northwest winds are lagging behind the leading edge of the clouds, but gusts to 25 kt are possible through late morning.

MVFR...