World > North America > United States > Illinois > Chester   Chester, IL Weather City of Chester, IL

Chester, IL Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Chester, IL Weather Forecast

Current Conditions

Settings
Chester IL weather - Clear - 85°F
Clear
85°F
Updated 11:23 am
Feels Like 100°F
Humidity 62%
Wind N 0 mph
Barometer  29.93 in
Dew Point 71°F
Chester IL weather - Clear - 29°C
Clear
29°C
Updated 11:23 am
Feels Like 38°C
Humidity 62%
Wind N 0 km/h
Barometer  101.4 kPa
Dew Point 21°C
WX Settings

Chester Weather Forecast

THIS AFTERNOON TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY WEDNESDAY THURSDAY THURSDAY NIGHT FRIDAY
Chester, IL Weather - This Afternoon Sunny Chester, IL Weather - Tonight Mostly Clear Chester, IL Weather - Sunday Chance Of T-Storm Chester, IL Weather - Sunday Night Partly Cloudy Chester, IL Weather - Monday Chance Of Showers Chester, IL Weather - Monday Night Mostly Clear Chester, IL Weather - Tuesday Mostly Clear Chester, IL Weather - Wednesday Mostly Clear Chester, IL Weather - Thursday Chance Of T-Storm Chester, IL Weather - Thursday Night Chance Of T-Storm Chester, IL Weather - Friday Chance Of T-Storm
Sunny Mostly Clear Chance of T-Storm Partly Cloudy Chance of Showers Mostly Clear Mostly Clear Mostly Clear Chance of T-Storm Chance of T-Storm Chance of T-Storm
Hi: 90°FHi: 32°C
 Lo: 69°FLo: 21°C Hi: 89°FHi: 32°C
 Lo: 65°FLo: 18°C Hi: 89°FHi: 32°C
 Hi: 95°FHi: 35°C
Lo: 69°FLo: 21°C		 Hi: 95°FHi: 35°C
Lo: 69°FLo: 21°C		 Hi: 95°FHi: 35°C
Lo: 69°FLo: 21°C		 Hi: 90°FHi: 32°C
Lo: 65°FLo: 18°C		 Hi: 90°FHi: 32°C
Lo: 65°FLo: 18°C		 Hi: 85°FHi: 29°C
POP: 20% POP: 20% POP: 40% POP: 40% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 1103 AM CDT Sat Sep 12 2026 Chester, IL Weather - WeatherWorld.com

Trending Headlines

Chester Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Chester Quick Facts

National Two Day Weather Forecast


E-mail the Chester Weather Forecast

Voice your opinion or tell us about page issues...

Chester Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 618 AM CDT Sat Sep 12 2026

Key Messages

  • There is a chance (20-30%) for showers and thunderstorms across central and northeast Missouri into west central Illinois late this afternoon and tonight. The chance for rain spreads southeast across the area on Sunday.
  • Temperatures will remain above normal for most of the area into next week with a chance for rain continuing, mainly across northern Missouri into central Illinois.

Aviation

/00Z TAFS THROUGH 06Z SUNDAY/... Issued at 1037 PM CDT Fri Sep 11 2026

Fog will be found initially...