Olney, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Olney, IL in one place.
Sunny, with a high near 88. East northeast wind 5 to 8 mph.
Local Weather Overview
This forecast page for Olney, 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 12, 2026 1:35 AM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Olney, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 1:35 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Olney
Friday looks like the warmest upcoming period in Olney at 90 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Saturday at about 5 to 9 mph SW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 1:35 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 70. East northeast wind 0 to 6 mph.
Sunny, with a high near 89.
Mostly clear, with a low around 72.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
88°F |
5 to 8 mph
ENE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
0 to 6 mph
ENE
|
|
Wednesday
Jul 15
|
Sunny
|
89°F |
3 mph
SE
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
72°F |
2 mph
SSW
|
|
Thursday
Jul 16
|
Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
1 to 6 mph
SW
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
5 mph
WSW
|
|
Friday
Jul 17
|
Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
2 to 7 mph
W
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
6 mph
WSW
|
|
Saturday
Jul 18
|
Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
5 to 9 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Olney.
Nearby forecast pages are not available for this location yet.
