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Olney, IL Weather Forecast

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Olney, IL Weather Forecast

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Olney IL weather - Clear - 47°F
Clear
47°F
Updated 4:54 am
Feels Like 52°F
Humidity 100%
Wind N 0 mph
Barometer  30.25 in
Dew Point 47°F
Olney IL weather - Clear - 8°C
Clear
8°C
Updated 4:54 am
Feels Like 11°C
Humidity 100%
Wind N 0 km/h
Barometer  102.4 kPa
Dew Point 9°C
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Olney Weather Forecast

REST OF TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
Olney, IL Weather - Rest Of Tonight Mostly Clear Olney, IL Weather - Wednesday Sunny Olney, IL Weather - Wednesday Night Clear Olney, IL Weather - Thursday Sunny Olney, IL Weather - Thursday Night Partly Cloudy Olney, IL Weather - Friday Mostly Sunny Olney, IL Weather - Friday Night Mostly Cloudy Olney, IL Weather - Saturday Mostly Cloudy Olney, IL Weather - Saturday Night Chance Of Showers Olney, IL Weather - Sunday Showers Olney, IL Weather - Sunday Night Mostly Cloudy Olney, IL Weather - Monday Chance Of Showers
Mostly Clear Sunny Clear Sunny Partly Cloudy Mostly Sunny Mostly Cloudy Mostly Cloudy Chance of Showers Showers Mostly Cloudy Chance of Showers
Lo: 49°FLo: 9°C Hi: 79°FHi: 26°C
 Lo: 51°FLo: 11°C Hi: 81°FHi: 27°C
 Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
 Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C		 Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C		 Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
POP: 40% POP: 60% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 127 AM CDT Wed Oct 28 2026 Olney, IL Weather - WeatherWorld.com

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Issued: 247 AM CDT Wed Oct 28 2026

Key Messages

  • Well above normal temperatures persist through Friday, with highs climbing to the mid 70s to around 80 degrees, around 15 degrees above normal.
  • Scattered light showers are possible Thursday into the weekend along a weak frontal boundary, but rain amounts will be light and localized.
  • A pronounced pattern shift this weekend through early next week brings high confidence in more widespread rainfall and cooler temperatures. There is a 50-60% chance areawide for over 1 inch of rain to fal...