Anderson, IL Weather Forecast

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Anderson, IL Weather Forecast

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Anderson IL weather  - Rain - 66°F
Rain
66°F
Updated 3:42 pm
Feels Like 67°F
Humidity 100%
Wind SSE 6 mph
Barometer  29.97 in
Dew Point 66°F
Anderson IL weather  - Rain - 19°C
Rain
19°C
Updated 3:42 pm
Feels Like 20°C
Humidity 100%
Wind SSE 10 km/h
Barometer  101.5 kPa
Dew Point 19°C

Anderson Weather Forecast

LATE THIS AFTERNOON TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT
Anderson, IL Weather - Late This Afternoon Chance Of T-Storm Anderson, IL Weather - Tonight Chance Of T-Storm Anderson, IL Weather - Sunday Chance Of T-Storm Anderson, IL Weather - Sunday Night Chance Of Showers Anderson, IL Weather - Monday Chance Of Showers Anderson, IL Weather - Monday Night Chance Of Showers Anderson, IL Weather - Tuesday Chance Of Showers Anderson, IL Weather - Tuesday Night Mostly Cloudy Anderson, IL Weather - Wednesday Mostly Cloudy Anderson, IL Weather - Wednesday Night Partly Cloudy Anderson, IL Weather - Thursday Mostly Cloudy Anderson, IL Weather - Thursday Night Mostly Cloudy
Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers Chance of Showers Chance of Showers Chance of Showers Mostly Cloudy Mostly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy
Hi: 69°FHi: 21°C
Lo: 61°FLo: 16°C Hi: 65°FHi: 18°C
Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
Lo: 51°FLo: 11°C Hi: 61°FHi: 16°C
Lo: 50°FLo: 10°C Hi: 65°FHi: 18°C
Lo: 51°FLo: 11°C Hi: 69°FHi: 21°C
Lo: 51°FLo: 11°C
POP: 70% POP: 100% POP: 80% POP: 20% POP: 50% POP: 50% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 321 PM CDT Sat Sep 19 2026 Anderson, IL Weather - WeatherWorld.com

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Issued: 1242 PM CDT Sat Sep 19 2026

Key Messages

  • A Flood Watch for flash flooding has been extended for areas roughly near and north of I-80 through early Sunday morning.
  • Heavy rain-producing showers and thunderstorms are expected to redevelop, as early as late this afternoon, but most likely this evening and overnight. Localized flash flooding will be possible where the heaviest rains occur over the same areas.
  • Showers/drizzle and perhaps an isolated thunderstorm likely to continue for most of the area through the day on Sunday. P...