Oconee, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Oconee, IL in one place.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Oconee, 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 9, 2026 2:23 AM CDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Oconee, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 2:23 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Oconee
Wednesday looks like the warmest upcoming period in Oconee 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 9 to 16 mph SSW.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 2:23 AM 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 10am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 71. South southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 91. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.
A chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 89. South southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West southwest wind 7 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. 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 83.
A slight chance of rain showers after 1am. Mostly clear, with a low around 61.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Sunny, with a high near 85.
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 81.
A chance of showers and thunderstorms. Partly cloudy, with a low around 60.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jun 9
|
Chance Showers And Thunderstorms
|
67°F |
5 mph
SSW
|
|
Tuesday
Jun 9
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
88°F |
5 to 8 mph
SW
|
|
Tuesday Night
Jun 9
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
71°F |
3 to 7 mph
SSW
|
|
Wednesday
Jun 10
|
Mostly Sunny
|
91°F |
7 to 14 mph
SSW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
71°F |
13 mph
SSW
|
|
Thursday
Jun 11
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
89°F |
9 to 16 mph
SSW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
66°F |
7 to 15 mph
WSW
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
83°F |
7 mph
NW
|
|
Friday Night
Jun 12
|
Mostly Clear then Slight Chance Rain Showers
|
61°F |
3 mph
WSW
|
|
Saturday
Jun 13
|
Slight Chance Showers And Thunderstorms
|
85°F |
3 to 8 mph
SSW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
63°F |
5 mph
W
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
81°F |
6 to 9 mph
NNW
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
60°F |
5 to 8 mph
NNE
|
|
Monday
Jun 15
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
78°F |
6 to 9 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Oconee.