Forest Hills, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Forest Hills, IL in one place.
A chance of showers and thunderstorms before 2pm, then isolated showers and thunderstorms. Partly sunny, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Forest Hills, 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: Sep 15, 2026 12:37 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Forest Hills, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 12:37 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Forest Hills
Saturday looks like the warmest upcoming period in Forest Hills at 80 degrees F.
Monday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Friday Night at about 10 to 15 mph SE.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 12:37 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
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. North wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Mostly cloudy. High near 73, with temperatures falling to around 71 in the afternoon. Northeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm. Mostly cloudy, with a high near 78. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
A chance of rain showers after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 77.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
A chance of rain showers before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 80.
Showers and thunderstorms likely. Mostly cloudy, with a low around 62.
A chance of showers and thunderstorms. Partly sunny, with a high near 73.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 70.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Chance Showers And Thunderstorms
|
79°F |
5 to 10 mph
SW
|
|
Tonight
Sep 15
|
Chance Showers And Thunderstorms
|
61°F |
5 to 10 mph
N
|
|
Wednesday
Sep 16
|
Chance Rain Showers
|
73°F |
5 to 10 mph
NE
|
|
Wednesday Night
Sep 16
|
Showers And Thunderstorms Likely
|
64°F |
5 mph
SE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
78°F |
5 mph
N
|
|
Thursday Night
Sep 17
|
Mostly Cloudy then Chance Rain Showers
|
62°F |
5 mph
NE
|
|
Friday
Sep 18
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
77°F |
5 to 10 mph
E
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms
|
64°F |
10 to 15 mph
SE
|
|
Saturday
Sep 19
|
Showers And Thunderstorms Likely
|
80°F |
15 mph
SSW
|
|
Saturday Night
Sep 19
|
Showers And Thunderstorms Likely
|
62°F |
10 mph
WNW
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
73°F |
10 to 15 mph
N
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
55°F |
10 to 15 mph
NE
|
|
Monday
Sep 21
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
70°F |
10 to 15 mph
NE
|
|
Monday Night
Sep 21
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
52°F |
5 to 10 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Forest Hills.