Weather Alert
Old Mill School Weather Warning NWS WEATHER ALERT FOR THE OLD MILL SCHOOL, IL AREA - FLOOD WATCH Issued: 133 AM CDT Sun Sep 20 2026 Old Mill School Weather Warning

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Old Mill School, IL Weather Forecast

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Old Mill School, IL Weather Forecast

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Old Mill School IL weather - Light Rain - 69°F
Light Rain
69°F
Updated 2:32 am
Feels Like 73°F
Humidity 96%
Wind N 0 mph
Barometer  29.9 in
Dew Point 68°F
Old Mill School IL weather - Light Rain - 21°C
Light Rain
21°C
Updated 2:32 am
Feels Like 23°C
Humidity 96%
Wind N 0 km/h
Barometer  101.2 kPa
Dew Point 20°C
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Old Mill School Weather Forecast

REST OF TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Old Mill School, IL Weather - Rest Of Tonight Thunderstorms Old Mill School, IL Weather - Sunday Chance Of T-Storm Old Mill School, IL Weather - Sunday Night Chance Of Showers Old Mill School, IL Weather - Monday Chance Of Showers Old Mill School, IL Weather - Monday Night Chance Of Showers Old Mill School, IL Weather - Tuesday Chance Of Showers Old Mill School, IL Weather - Tuesday Night Partly Cloudy Old Mill School, IL Weather - Wednesday Mostly Cloudy Old Mill School, IL Weather - Wednesday Night Partly Cloudy Old Mill School, IL Weather - Thursday Partly Cloudy Old Mill School, IL Weather - Thursday Night Mostly Cloudy Old Mill School, IL Weather - Friday Partly Cloudy
Thunderstorms Chance of T-Storm Chance of Showers Chance of Showers Chance of Showers Chance of Showers Partly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Partly Cloudy
Lo: 69°FLo: 21°C Hi: 69°FHi: 21°C
 Lo: 59°FLo: 15°C Hi: 65°FHi: 18°C
 Lo: 55°FLo: 13°C Hi: 61°FHi: 16°C
 Lo: 51°FLo: 11°C Hi: 65°FHi: 18°C
 Lo: 51°FLo: 11°C Hi: 65°FHi: 18°C
 Lo: 51°FLo: 11°C Hi: 69°FHi: 21°C
POP: 100% POP: 100% POP: 30% POP: 30% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 120 AM CDT Sun Sep 20 2026 Old Mill School, IL Weather - WeatherWorld.com

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Issued: 103 AM CDT Sun Sep 20 2026

Key Messages

  • A Flood Watch for flash flooding is in effect for areas roughly along and north of the Illinois and Kankakee rivers through early Sunday morning.
  • Heavy rain-producing showers and thunderstorms are expected to redevelop late tonight. Flash flooding will be possible where the heaviest rains occur over the same areas.
  • Showers/drizzle and perhaps an isolated thunderstorm likely to continue for most of the area through the day on Sunday. Periods of showers to persist off-and-on through Tu...