National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Olney-Noble Airport (KOLY)

Lat: 38.72°NLon: 88.18°WElev: 479ft.

Fair

42°F

6°C

Humidity 90%
Wind Speed SE 3 mph
Barometer 30.02 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 17 Feb 3:35 am CST
Extended Forecast for

Olney IL

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 39. South wind around 6 mph.

    Low: 39 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, cloudy, with a high near 57. South wind 6 to 14 mph, with gusts as high as 29 mph.

    High: 57 °F

    Patchy Fog
    then Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly between midnight and 3am. Mostly cloudy, with a low around 54. South southwest wind 14 to 18 mph, with gusts as high as 36 mph.

    Low: 54 °F

    Cloudy then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. West southwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Partly cloudy, with a low around 51. South wind around 6 mph.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A chance of rain, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67. South wind 6 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Chance Rain
    then Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 39. West wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 39. South wind around 6 mph.
Tuesday
Patchy fog before 10am. Otherwise, cloudy, with a high near 57. South wind 6 to 14 mph, with gusts as high as 29 mph.
Tuesday Night
A 30 percent chance of showers, mainly between midnight and 3am. Mostly cloudy, with a low around 54. South southwest wind 14 to 18 mph, with gusts as high as 36 mph.
Wednesday
Mostly sunny, with a high near 70. West southwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 29 mph.
Wednesday Night
A 30 percent chance of rain after midnight. Partly cloudy, with a low around 51. South wind around 6 mph.
Thursday
A chance of rain, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67. South wind 6 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 39. West wind 10 to 13 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Olney IL
 38.73°N 88.09°W (Elev. 446 ft)
Last Update:
3:36 am CST Feb 17, 2026
Forecast Valid:
3am CST Feb 17, 2026-6pm CST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation