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Waterloo High School, IL Weather Forecast

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Waterloo High School, IL Weather Forecast

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Waterloo High School IL weather - Mostly Clear - 71°F
Mostly Clear
71°F
Updated 4:48 am
Feels Like 68°F
Humidity 93%
Wind N 0 mph
Barometer  29.94 in
Dew Point 69°F
Waterloo High School IL weather - Mostly Clear - 22°C
Mostly Clear
22°C
Updated 4:48 am
Feels Like 20°C
Humidity 93%
Wind N 0 km/h
Barometer  101.4 kPa
Dew Point 21°C
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Waterloo High School Weather Forecast

TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY FRIDAY FRIDAY NIGHT SATURDAY SUNDAY
Waterloo High School, IL Weather - Today Chance Of T-Storm Waterloo High School, IL Weather - Tonight Mostly Cloudy Waterloo High School, IL Weather - Tuesday Mostly Cloudy Waterloo High School, IL Weather - Tuesday Night Partly Cloudy Waterloo High School, IL Weather - Wednesday Mostly Sunny Waterloo High School, IL Weather - Wednesday Night Partly Cloudy Waterloo High School, IL Weather - Thursday Partly Cloudy Waterloo High School, IL Weather - Friday Partly Cloudy Waterloo High School, IL Weather - Friday Night Mostly Cloudy Waterloo High School, IL Weather - Saturday Mostly Cloudy Waterloo High School, IL Weather - Sunday Mostly Sunny
Chance of T-Storm Mostly Cloudy Mostly Cloudy Partly Cloudy Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Sunny
Hi: 79°FHi: 26°C
 Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
 Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 81°FHi: 27°C
POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 338 AM CDT Mon Sep 21 2026 Waterloo High School, IL Weather - WeatherWorld.com

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Issued: 330 AM CDT Mon Sep 21 2026

Key Messages

  • Scattered showers and thunderstorms will come to an end later this morning.
  • Seasonably cool temperatures are expected for the rest of the week.

Aviation

/00Z TAFS THROUGH 06Z TUESDAY/... Issued at 1036 PM CDT Sun Sep 20 2026

Showers and a few thunderstorms will continue to affect the St. Louis area metro terminals through 07-09Z and COU/JEF through 07Z. Heavier showers and thunderstorms will have the potential to reduce ceilings and visibilities to MVFR and IFR conditions. Then mainly I...