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Grant Park, IL Weather Forecast

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Grant Park, IL Weather Forecast

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Grant Park IL weather - Light Rain - 54°F
Light Rain
54°F
Updated 1:02 am
Feels Like 49°F
Humidity 74%
Wind ESE 7 mph
Barometer  30.35 in
Dew Point 46°F
Grant Park IL weather - Light Rain - 12°C
Light Rain
12°C
Updated 1:02 am
Feels Like 9°C
Humidity 74%
Wind ESE 11 km/h
Barometer  102.8 kPa
Dew Point 8°C
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Grant Park Weather Forecast

REST OF TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY
Grant Park, IL Weather - Rest Of Tonight Chance Of Showers Grant Park, IL Weather - Saturday Chance Of Showers Grant Park, IL Weather - Saturday Night Chance Of Showers Grant Park, IL Weather - Sunday Chance Of Showers Grant Park, IL Weather - Sunday Night Mostly Cloudy Grant Park, IL Weather - Monday Chance Of Showers Grant Park, IL Weather - Monday Night Chance Of Showers Grant Park, IL Weather - Tuesday Chance Of T-Storm Grant Park, IL Weather - Tuesday Night Showers Grant Park, IL Weather - Wednesday Showers Likely Grant Park, IL Weather - Wednesday Night Chance Of Showers Grant Park, IL Weather - Thursday Chance Of Showers
Chance of Showers Chance of Showers Chance of Showers Chance of Showers Mostly Cloudy Chance of Showers Chance of Showers Chance of T-Storm Showers Showers Likely Chance of Showers Chance of Showers
Lo: 50°FLo: 10°C Hi: 69°FHi: 21°C
 Lo: 55°FLo: 13°C Hi: 69°FHi: 21°C
 Lo: 51°FLo: 11°C Hi: 69°FHi: 21°C
 Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 69°FHi: 21°C
 Lo: 49°FLo: 9°C Hi: 65°FHi: 18°C
POP: 50% POP: 50% POP: 20% POP: 20% POP: 50% POP: 50% POP: 70% POP: 60% POP: 70% POP: 50% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 951 PM CDT Fri Oct 30 2026 Grant Park, IL Weather - WeatherWorld.com

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Issued: 1242 AM CDT Sat Oct 31 2026

Key Messages

  • Periods of showers and/or drizzle are expected at times through the weekend, though the highest chances/coverage is expected tonight into Saturday morning.
  • Additional periods of wet weather are likely next week.

Discussion

... Issued at 100 PM CDT Fri Oct 30 2026

There is a mid-level trough over west central Texas (via SPC Mesoanalysis) that is expected to gradually move northeastward over the southern Plains today/tonight. Additionally, a stout 100+ knot upper jet is located over south...