Grant Park, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grant Park, IL in one place.
Partly sunny, with a high near 77.
Local Weather Overview
This forecast page for Grant Park, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 28, 2026 2:18 AM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Grant Park, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 2:18 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Grant Park
Wednesday looks like the warmest upcoming period in Grant Park at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph ENE.
The forecast from May 30 through Jun 3 stays mostly dry.
Forecast Details
- Last updated
- May 28, 2026 2:18 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 53.
Mostly sunny, with a high near 77.
Partly cloudy, with a low around 54.
Mostly sunny, with a high near 80.
Mostly clear, with a low around 54.
Sunny, with a high near 78.
Mostly clear, with a low around 53.
Sunny, with a high near 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Partly Sunny
|
77°F |
5 to 15 mph
ENE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
53°F |
5 to 15 mph
E
|
|
Sunday
May 31
|
Mostly Sunny
|
77°F |
5 mph
E
|
|
Sunday Night
May 31
|
Partly Cloudy
|
54°F |
0 to 5 mph
NE
|
|
Monday
Jun 1
|
Mostly Sunny
|
80°F |
0 to 10 mph
NNE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
54°F |
5 to 15 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
78°F |
5 to 15 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
53°F |
5 to 15 mph
NNE
|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
5 to 10 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grant Park.
