Banner, IL Weather Forecast

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Banner, IL Weather Forecast

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Banner IL weather  - Mostly Cloudy - 78°F
Mostly Cloudy
78°F
Updated 1:37 pm
Feels Like 86°F
Humidity 81%
Wind SSE 5 mph
Barometer  30.28 in
Dew Point 72°F
Banner IL weather  - Mostly Cloudy - 26°C
Mostly Cloudy
26°C
Updated 1:37 pm
Feels Like 30°C
Humidity 81%
Wind SSE 8 km/h
Barometer  102.5 kPa
Dew Point 22°C

Banner Weather Forecast

THIS AFTERNOON TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
Banner, IL Weather - This Afternoon Chance Of T-Storm Banner, IL Weather - Tonight Chance Of T-Storm Banner, IL Weather - Thursday Chance Of T-Storm Banner, IL Weather - Thursday Night Chance Of Showers Banner, IL Weather - Friday Chance Of Showers Banner, IL Weather - Friday Night Partly Cloudy Banner, IL Weather - Saturday Chance Of Showers Banner, IL Weather - Saturday Night Chance Of T-Storm Banner, IL Weather - Sunday Chance Of Showers Banner, IL Weather - Sunday Night Chance Of T-Storm Banner, IL Weather - Monday Chance Of Showers Banner, IL Weather - Monday Night Partly Cloudy
Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers Chance of Showers Partly Cloudy Chance of Showers Chance of T-Storm Chance of Showers Chance of T-Storm Chance of Showers Partly Cloudy
Hi: 81°FHi: 27°C
Lo: 69°FLo: 21°C Hi: 85°FHi: 29°C
Lo: 69°FLo: 21°C Hi: 85°FHi: 29°C
Lo: 69°FLo: 21°C Hi: 89°FHi: 32°C
Lo: 65°FLo: 18°C Hi: 79°FHi: 26°C
Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
Lo: 59°FLo: 15°C
POP: 40% POP: 20% POP: 50% POP: 30% POP: 40% POP: 40% POP: 70% POP: 50% POP: 50% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 1227 PM CDT Wed Sep 16 2026 Banner, IL Weather - WeatherWorld.com

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Issued: 1201 PM CDT Wed Sep 16 2026

Key Messages

  • Isolated Strong Storms: Isolated strong thunderstorms may produce localized damaging winds this afternoon and evening near the I-72 corridor, with a low-end threat continuing Thursday and Friday.
  • Dangerous Heat & Humidity: Sweltering conditions will continue south of I-72 today, where high humidity will drive heat indices to 100-104F.
  • Unsettled Pattern & Temperature Contrast: Daily shower and storm chances persist into early next week alongside a sharp contrast between 90s south and ...