Forest Park, IL Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Forest Park, IL in one place.
Rain showers. Cloudy, with a high near 64. Southeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Forest 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: Oct 15, 2026 1:30 PM CDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Forest Park, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 1:30 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Forest Park
Wednesday looks like the warmest upcoming period in Forest Park at 70 degrees F.
Friday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Friday at about 15 to 20 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 1:30 PM CDT
- Coverage
- 7 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
Rain showers before 1am. Cloudy, with a low around 51. West southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Scattered rain showers after 10am. Mostly cloudy, with a high near 52. Northwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Scattered rain showers before 1am. Partly cloudy, with a low around 40. North wind 10 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Sunny, with a high near 56. West northwest wind 5 to 10 mph.
Clear, with a low around 43.
Sunny, with a high near 61.
Mostly clear, with a low around 45.
Mostly sunny, with a high near 67.
Partly cloudy, with a low around 46.
Mostly sunny, with a high near 69.
Mostly clear, with a low around 49.
Sunny, with a high near 70.
Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 15
|
Rain Showers
|
64°F |
10 mph
SE
|
|
Tonight
Oct 15
|
Rain Showers
|
51°F |
10 to 15 mph
WSW
|
|
Friday
Oct 16
|
Scattered Rain Showers
|
52°F |
15 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Scattered Rain Showers
|
40°F |
10 to 20 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
56°F |
5 to 10 mph
WNW
|
|
Saturday Night
Oct 17
|
Clear
|
43°F |
5 to 10 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
61°F |
10 to 15 mph
SSW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
45°F |
5 to 10 mph
SSW
|
|
Monday
Oct 19
|
Mostly Sunny
|
67°F |
5 mph
SSW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
46°F |
0 to 5 mph
SW
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
69°F |
0 to 5 mph
S
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
49°F |
0 to 5 mph
SE
|
|
Wednesday
Oct 21
|
Sunny
|
70°F |
0 to 5 mph
SSE
|
|
Wednesday Night
Oct 21
|
Partly Cloudy
|
52°F |
5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Forest Park.