Midwest, IL Weather Forecast

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Midwest, IL Weather Forecast

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Midwest IL weather  - Mostly Cloudy - 84°F
Mostly Cloudy
84°F
Updated 1:08 pm
Feels Like 90°F
Humidity 51%
Wind WSW 10 mph
Barometer  29.87 in
Dew Point 64°F
Midwest IL weather  - Mostly Cloudy - 29°C
Mostly Cloudy
29°C
Updated 1:08 pm
Feels Like 32°C
Humidity 51%
Wind WSW 16 km/h
Barometer  101.2 kPa
Dew Point 18°C

Midwest Weather Forecast

REST OF TODAY TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT
Midwest, IL Weather - Rest Of Today Partly Cloudy Midwest, IL Weather - Tonight Clearing Midwest, IL Weather - Sunday Chance Of Showers Midwest, IL Weather - Sunday Night Clearing Midwest, IL Weather - Monday Partly Cloudy Midwest, IL Weather - Monday Night Chance Of T-Storm Midwest, IL Weather - Tuesday Chance Of T-Storm Midwest, IL Weather - Tuesday Night Chance Of T-Storm Midwest, IL Weather - Wednesday Chance Of T-Storm Midwest, IL Weather - Wednesday Night Chance Of T-Storm Midwest, IL Weather - Thursday Chance Of Showers Midwest, IL Weather - Thursday Night Partly Cloudy
Partly Cloudy Clearing Chance of Showers Clearing Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers Partly Cloudy
Hi: 85°FHi: 29°C
Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C Hi: 71°FHi: 22°C
Lo: 69°FLo: 21°C Hi: 85°FHi: 29°C
Lo: 65°FLo: 18°C Hi: 79°FHi: 26°C
Lo: 65°FLo: 18°C Hi: 79°FHi: 26°C
Lo: 59°FLo: 15°C
POP: 40% POP: 40% POP: 60% POP: 80% POP: 80% POP: 70% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 1005 AM CDT Sat Sep 12 2026 Midwest, IL Weather - WeatherWorld.com

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Issued: 632 AM CDT Sat Sep 12 2026

Key Messages

  • Dry and mild today, turning cooler Sunday with a chance for a few afternoon showers.
  • Waves of heavy rain producing thunderstorms possible in the general region early to mid next week.

Discussion

... Issued at 313 AM CDT Sat Sep 12 2026

A low-level thermal ridge will briefly push northeastward across the area today ahead of a cold front advancing from the Upper Midwest. This will bring warmer and slightly more humid conditions, with high temperatures reaching the mid to upper 80s and hea...