Olney, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Olney, IL in one place.
Mostly sunny, with a high near 81. East northeast wind 3 to 7 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: May 27, 2026 11:53 PM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Olney, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 27, 2026 11:53 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Olney
Saturday looks like the warmest upcoming period in Olney at 81 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 10 mph NE.
The forecast from May 30 through Jun 3 stays mostly dry.
Forecast Details
- Last updated
- May 27, 2026 11:53 PM 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
Partly cloudy, with a low around 60. East northeast wind around 7 mph.
Mostly sunny, with a high near 79.
Partly cloudy, with a low around 60.
Mostly sunny, with a high near 81.
Mostly clear, with a low around 60.
Sunny, with a high near 80.
Mostly clear, with a low around 57.
Sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Sunny
|
81°F |
3 to 7 mph
ENE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
60°F |
7 mph
ENE
|
|
Sunday
May 31
|
Mostly Sunny
|
79°F |
7 mph
ENE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
60°F |
5 mph
NE
|
|
Monday
Jun 1
|
Mostly Sunny
|
81°F |
3 to 7 mph
NNE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
60°F |
6 mph
NNE
|
|
Tuesday
Jun 2
|
Sunny
|
80°F |
6 to 10 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
57°F |
5 to 9 mph
NE
|
|
Wednesday
Jun 3
|
Sunny
|
80°F |
7 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Olney.
Nearby forecast pages are not available for this location yet.