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Dennison, IL Weather Forecast

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Dennison, IL Weather Forecast

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Dennison IL weather - Mostly Clear - 63°F
Mostly Clear
63°F
Updated 3:27 pm
Feels Like 60°F
Humidity 51%
Wind E 9 mph
Barometer  30.29 in
Dew Point 45°F
Dennison IL weather - Mostly Clear - 17°C
Mostly Clear
17°C
Updated 3:27 pm
Feels Like 15°C
Humidity 51%
Wind E 14 km/h
Barometer  102.6 kPa
Dew Point 7°C
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Dennison Weather Forecast

THIS AFTERNOON TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT
Dennison, IL Weather - This Afternoon Cloudy Dennison, IL Weather - Tonight Chance Of Showers Dennison, IL Weather - Sunday Chance Of Showers Dennison, IL Weather - Sunday Night Cloudy Dennison, IL Weather - Monday Mostly Cloudy Dennison, IL Weather - Monday Night Mostly Cloudy Dennison, IL Weather - Tuesday Showers Likely Dennison, IL Weather - Tuesday Night Chance Of Showers Dennison, IL Weather - Wednesday Chance Of Showers Dennison, IL Weather - Wednesday Night Chance Of Showers Dennison, IL Weather - Thursday Chance Of Showers Dennison, IL Weather - Thursday Night Partly Cloudy
Cloudy Chance of Showers Chance of Showers Cloudy Mostly Cloudy Mostly Cloudy Showers Likely Chance of Showers Chance of Showers Chance of Showers Chance of Showers Partly Cloudy
Hi: 65°FHi: 18°C
 Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
 Lo: 51°FLo: 11°C Hi: 69°FHi: 21°C
 Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 69°FHi: 21°C
 Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
 Hi: 65°FHi: 18°C
Lo: 45°FLo: 7°C
POP: 20% POP: 50% POP: 60% POP: 50% POP: 50% POP: 50% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 122 PM CDT Sat Oct 31 2026 Dennison, IL Weather - WeatherWorld.com

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Issued: 210 PM CDT Sat Oct 31 2026

Key Messages

  • Isolated to scattered (20-40%) showers will continue through Sunday afternoon. Rainfall under a tenth of an inch is most likely with isolated pockets around a quarter inch.
  • Gusty winds arrive Tuesday with a 40-60% chance for wind gusts to exceed 40 mph.

Discussion

... Issued at 158 PM CDT Sat Oct 31 2026

This Weekend... Surface high pressure remains centered over the lower Great Lakes this afternoon, while aloft, an expansive ridge stretches from the Southeast CONUS to the Canadian Rock...