Weather Alert
Colonial Prep School Weather Warning NWS WEATHER ALERT FOR THE COLONIAL PREP SCHOOL, IL AREA - Issued: 1009 AM CST Thu Nov 12 2026 Colonial Prep School Weather Warning

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Colonial Prep School, IL Weather Forecast

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Colonial Prep School, IL Weather Forecast

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Colonial Prep School IL weather - Mostly Cloudy - 42°F
Mostly Cloudy
42°F
Updated 1:24 pm
Feels Like 37°F
Humidity 59%
Wind NNW 17 mph
Barometer  29.92 in
Dew Point 29°F
Colonial Prep School IL weather - Mostly Cloudy - 6°C
Mostly Cloudy
6°C
Updated 1:24 pm
Feels Like 3°C
Humidity 59%
Wind NNW 27 km/h
Barometer  101.3 kPa
Dew Point -2°C
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Colonial Prep School Weather Forecast

THIS AFTERNOON TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT
Colonial Prep School, IL Weather - This Afternoon Chance Of Rain Colonial Prep School, IL Weather - Tonight Chance Of Snow Colonial Prep School, IL Weather - Friday Chance Of Snow Colonial Prep School, IL Weather - Friday Night Rain And Snow Colonial Prep School, IL Weather - Saturday Partly Cloudy Colonial Prep School, IL Weather - Saturday Night Mostly Clear Colonial Prep School, IL Weather - Sunday Mostly Sunny Colonial Prep School, IL Weather - Sunday Night Clear Colonial Prep School, IL Weather - Monday Sunny Colonial Prep School, IL Weather - Monday Night Clear Colonial Prep School, IL Weather - Tuesday Sunny Colonial Prep School, IL Weather - Tuesday Night Clear
Chance of Rain Chance of Snow Chance of Snow Rain and Snow Partly Cloudy Mostly Clear Mostly Sunny Clear Sunny Clear Sunny Clear
Hi: 45°FHi: 7°C
 Lo: 35°FLo: 2°C Hi: 41°FHi: 5°C
 Lo: 35°FLo: 2°C Hi: 45°FHi: 7°C
 Lo: 31°FLo: -1°C Hi: 49°FHi: 9°C
 Lo: 31°FLo: -1°C Hi: 50°FHi: 10°C
 Lo: 31°FLo: -1°C Hi: 51°FHi: 11°C
 Lo: 35°FLo: 2°C
POP: 50% POP: 70% POP: 70% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 1236 PM CST Thu Nov 12 2026 Colonial Prep School, IL Weather - WeatherWorld.com

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Issued: 1208 PM CST Thu Nov 12 2026

Key Messages

  • A prolonged lake effect precipitation event will begin today, with lake effect rain showers initially occurring in northwest Indiana and portions of far northeastern Illinois.
  • Rain will transition to snow in the lake effect band tonight, and there is growing concern that a few to potentially several inches of wet snow accumulation will lead to localized travel impacts late tonight into Friday morning, including during the Friday morning commute.
  • Additional periods of lake effect rain...