Flatville, IL Weather Forecast
Local 7-day forecast
Partly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Flatville, IL in one place.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Southwest wind 8 to 12 mph, with gusts as high as 17 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Flatville, 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: Jun 8, 2026 11:06 PM CDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Flatville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 8, 2026 11:06 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Flatville
Wednesday looks like the warmest upcoming period in Flatville at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Thursday at about 13 to 23 mph SSW.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 11:06 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
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 before 3am. Partly cloudy, with a low around 72. Southwest wind 5 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 91. Heat index values as high as 101. South southwest wind 9 to 20 mph, with gusts as high as 26 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 72. South southwest wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers likely before 10am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 13 to 23 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West southwest wind 10 to 21 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 85.
Mostly clear, with a low around 62.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 87.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 63.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82.
A chance of showers and thunderstorms. Partly cloudy, with a low around 60.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
8 to 12 mph
SW
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms
|
72°F |
5 to 9 mph
SW
|
|
Wednesday
Jun 10
|
Mostly Sunny
|
91°F |
9 to 20 mph
SSW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
72°F |
14 to 18 mph
SSW
|
|
Thursday
Jun 11
|
Chance Showers And Thunderstorms
|
90°F |
13 to 23 mph
SSW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
66°F |
10 to 21 mph
WSW
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
85°F |
8 to 13 mph
WNW
|
|
Friday Night
Jun 12
|
Mostly Clear
|
62°F |
3 to 9 mph
WSW
|
|
Saturday
Jun 13
|
Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
6 to 14 mph
SW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
63°F |
6 to 12 mph
W
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
82°F |
7 to 13 mph
NNW
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
60°F |
6 to 12 mph
N
|
|
Monday
Jun 15
|
Chance Rain Showers
|
80°F |
8 to 13 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Flatville.