Oconee, IL Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Oconee, IL in one place.
Patchy fog. Mostly clear, with a low around 60. North wind around 3 mph.
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: Aug 3, 2026 7:22 AM CDT.
The active forecast window currently covers Aug 3 to Aug 9, 2026 for Oconee, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 3 to Aug 9, 2026
- Latest sync
- Aug 3, 2026 7:22 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Oconee
Sunday looks like the warmest upcoming period in Oconee at 88 degrees F.
Overnight is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Sunday at about 7 mph SSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 3, 2026 7:22 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
Patchy fog before 10am. Sunny, with a high near 83. Northeast wind around 3 mph.
Mostly clear, with a low around 61. East wind around 3 mph.
Sunny, with a high near 85. Southeast wind around 3 mph.
Mostly clear, with a low around 61. South southeast wind around 3 mph.
Sunny, with a high near 86. South wind around 3 mph.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. South southeast wind around 3 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 7am, then showers and thunderstorms likely between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67.
A slight chance of showers and thunderstorms. Sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 3
|
Patchy Fog
|
60°F |
3 mph
N
|
|
Monday
Aug 3
|
Patchy Fog then Sunny
|
83°F |
3 mph
NE
|
|
Monday Night
Aug 3
|
Mostly Clear
|
61°F |
3 mph
E
|
|
Tuesday
Aug 4
|
Sunny
|
85°F |
3 mph
SE
|
|
Tuesday Night
Aug 4
|
Mostly Clear
|
61°F |
3 mph
SSE
|
|
Wednesday
Aug 5
|
Sunny
|
86°F |
3 mph
S
|
|
Wednesday Night
Aug 5
|
Partly Cloudy then Chance Showers And Thunderstorms
|
66°F |
3 mph
SSE
|
|
Thursday
Aug 6
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
83°F |
6 mph
SSW
|
|
Thursday Night
Aug 6
|
Chance Showers And Thunderstorms
|
65°F |
3 mph
E
|
|
Friday
Aug 7
|
Chance Showers And Thunderstorms
|
83°F |
3 mph
SW
|
|
Friday Night
Aug 7
|
Chance Showers And Thunderstorms
|
65°F |
2 mph
SSE
|
|
Saturday
Aug 8
|
Chance Showers And Thunderstorms
|
85°F |
5 mph
SSW
|
|
Saturday Night
Aug 8
|
Slight Chance Showers And Thunderstorms
|
67°F |
3 mph
S
|
|
Sunday
Aug 9
|
Slight Chance Showers And Thunderstorms
|
88°F |
7 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Oconee.