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Chapman, IL Weather Forecast

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Chapman, IL Weather Forecast

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Chapman IL weather - Clear - 77°F
Clear
77°F
Updated 1:02 pm
Feels Like 69°F
Humidity 36%
Wind N/A N/A mph
Barometer  30.41 in
Dew Point 48°F
Chapman IL weather - Clear - 25°C
Clear
25°C
Updated 1:02 pm
Feels Like 21°C
Humidity 36%
Wind N/A 0 km/h
Barometer  103 kPa
Dew Point 9°C
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Chapman Weather Forecast

THIS AFTERNOON TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Chapman, IL Weather - This Afternoon Mostly Sunny Chapman, IL Weather - Tonight Partly Cloudy Chapman, IL Weather - Monday Partly Sunny Chapman, IL Weather - Monday Night Partly Cloudy Chapman, IL Weather - Tuesday Partly Sunny Chapman, IL Weather - Tuesday Night Mostly Cloudy Chapman, IL Weather - Wednesday Sunny Chapman, IL Weather - Wednesday Night Clear Chapman, IL Weather - Thursday Sunny Chapman, IL Weather - Thursday Night Partly Cloudy Chapman, IL Weather - Friday Partly Cloudy Chapman, IL Weather - Friday Night Mostly Cloudy
Mostly Sunny Partly Cloudy Partly Sunny Partly Cloudy Partly Sunny Mostly Cloudy Sunny Clear Sunny Partly Cloudy Partly Cloudy Mostly Cloudy
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: 51°FLo: 11°C Hi: 80°FHi: 27°C
 Hi: 79°FHi: 26°C
Lo: 51°FLo: 11°C		 Hi: 79°FHi: 26°C
Lo: 51°FLo: 11°C		 Lo: 55°FLo: 13°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1114 AM CDT Sun Oct 25 2026 Chapman, IL Weather - WeatherWorld.com

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Issued: 1214 PM CDT Sun Oct 25 2026

Key Messages

  • Warm days and crisp fall nights continue through the end of the coming workweek.
  • Rain chances return for Halloween weekend.

Aviation

/18Z TAFS THROUGH 00Z TUESDAY/... Issued at 1214 PM CDT Sun Oct 25 2026

Dry and VFR are forecast to continue through the TAF period. Patchy river valley fog cannot be ruled out Monday morning, but coverage should be less than previous mornings and confidence is lower in any TAF site impacts. Winds will remain light, becoming more southwesterly during the d...