Forrest, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Forrest, IL in one place.
A chance of showers and thunderstorms before 4pm. Mostly cloudy. High near 71, with temperatures falling to around 69 in the afternoon. North northeast wind 0 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
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: Oct 13, 2026 10:28 PM CDT.
The active forecast window currently covers Oct 14 to Oct 20, 2026 for Forrest, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 14 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 10:28 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Forrest
Tuesday looks like the warmest upcoming period in Forrest at 75 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 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 13, 2026 10:28 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 rain showers after 5am. Mostly cloudy, with a low around 56. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers likely before 7am, then showers and thunderstorms. Mostly cloudy, with a high near 70. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 100%.
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 46. West wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Mostly sunny, with a high near 59.
Areas of frost after 4am. Mostly clear, with a low around 33.
Areas of frost before 8am. Sunny, with a high near 62.
Clear, with a low around 37.
Sunny, with a high near 68.
Partly cloudy, with a low around 45.
Partly sunny, with a high near 70.
Mostly cloudy, with a low around 46.
Mostly sunny, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Oct 14
|
Chance Showers And Thunderstorms
|
71°F |
0 to 10 mph
NNE
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy then Chance Rain Showers
|
56°F |
5 to 10 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
70°F |
5 mph
SE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
46°F |
5 to 15 mph
W
|
|
Friday
Oct 16
|
Mostly Sunny
|
59°F |
15 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear then Areas Of Frost
|
33°F |
0 to 15 mph
NNW
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
62°F |
0 to 5 mph
W
|
|
Saturday Night
Oct 17
|
Clear
|
37°F |
0 to 5 mph
SSW
|
|
Sunday
Oct 18
|
Sunny
|
68°F |
5 to 10 mph
SSW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
45°F |
5 mph
S
|
|
Monday
Oct 19
|
Partly Sunny
|
70°F |
5 mph
SSW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
46°F |
0 to 5 mph
S
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
75°F |
0 to 5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Forrest.
