Forrest, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Forrest, IL in one place.
Sunny, with a high near 90. Heat index values as high as 99. West wind 0 to 5 mph.
Local Weather Overview
This forecast page for Forrest, 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: Jul 14, 2026 9:21 PM CDT.
The active forecast window currently covers Jul 15 to Jul 21, 2026 for Forrest, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 9:21 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Forrest
Thursday looks like the warmest upcoming period in Forrest at 91 degrees F.
Monday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 15 mph WNW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 9:21 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
Partly cloudy, with a low around 72. Heat index values as high as 98. West southwest wind 0 to 5 mph.
A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 101. West southwest wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 71. South southwest wind around 0 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms between 7am and 10am, then showers and thunderstorms likely. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1am. Partly cloudy, with a low around 72.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 70.
Sunny, with a high near 88.
Partly cloudy, with a low around 69.
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 88.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Sunny
|
90°F |
0 to 5 mph
W
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
72°F |
0 to 5 mph
WSW
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
0 to 5 mph
WSW
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
71°F |
0 mph
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
88°F |
0 to 5 mph
SW
|
|
Friday Night
Jul 17
|
Showers And Thunderstorms Likely
|
72°F |
5 mph
SW
|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
WSW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
70°F |
5 to 10 mph
W
|
|
Sunday
Jul 19
|
Sunny
|
88°F |
5 mph
NNW
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
69°F |
5 mph
S
|
|
Monday
Jul 20
|
Slight Chance Showers And Thunderstorms
|
88°F |
5 to 10 mph
SW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
68°F |
5 to 10 mph
W
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms
|
85°F |
5 to 15 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Forrest.
