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Allentown, IL Weather Forecast

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Allentown, IL Weather Forecast

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Allentown IL weather - Clear - 51°F
Clear
51°F
Updated 12:04 am
Feels Like 52°F
Humidity 92%
Wind N 0 mph
Barometer  30.18 in
Dew Point 49°F
Allentown IL weather - Clear - 11°C
Clear
11°C
Updated 12:04 am
Feels Like 11°C
Humidity 92%
Wind N 0 km/h
Barometer  102.2 kPa
Dew Point 9°C
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Allentown Weather Forecast

REST OF TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Allentown, IL Weather - Rest Of Tonight Clear Allentown, IL Weather - Tuesday Sunny Allentown, IL Weather - Tuesday Night Partly Cloudy Allentown, IL Weather - Wednesday Sunny Allentown, IL Weather - Wednesday Night Mostly Clear Allentown, IL Weather - Thursday Mostly Clear Allentown, IL Weather - Thursday Night Mostly Clear Allentown, IL Weather - Friday Mostly Sunny Allentown, IL Weather - Friday Night Mostly Clear Allentown, IL Weather - Saturday Sunny Allentown, IL Weather - Saturday Night Mostly Clear Allentown, IL Weather - Sunday Mostly Sunny
Clear Sunny Partly Cloudy Sunny Mostly Clear Mostly Clear Mostly Clear Mostly Sunny Mostly Clear Sunny Mostly Clear Mostly Sunny
Lo: 49°FLo: 9°C Hi: 79°FHi: 26°C
 Lo: 55°FLo: 13°C Hi: 80°FHi: 27°C
 Lo: 51°FLo: 11°C Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C		 Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C		 Hi: 75°FHi: 24°C
 Lo: 50°FLo: 10°C Hi: 79°FHi: 26°C
 Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1037 PM CDT Mon Oct 05 2026 Allentown, IL Weather - WeatherWorld.com

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Allentown Forecast Discussion

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Issued: 602 PM CDT Mon Oct 5 2026

Key Messages

  • No significant weather is expected across central Illinois through early next week.
  • Due to dry fuels and low relative humidity values, there is an elevated risk for agricultural field fires through Saturday.

Discussion

... Issued at 215 PM CDT Mon Oct 5 2026

High pressure extending from Ontario to the southern Plains continues to dominate the weather across central Illinois today...resulting in sunny skies with above normal temperatures in the lower to middle 70s. As the ridge axis begi...