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

Hazardous Weather Conditions

Current conditions at

Olney-Noble Airport (KOLY)

Lat: 38.72°NLon: 88.18°WElev: 479ft.

Fair

68°F

20°C

Humidity 92%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 25 Jun 3:35 am CDT
Extended Forecast for

Olney IL

Flood Watch June 25, 04:00pm until June 27, 01:00pm
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Light southwest wind.

    Low: 66 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 85. West wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 68. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 80. South southeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 80 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 69. Southwest wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind around 6 mph.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Light southwest wind.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 85. West wind 3 to 6 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 chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 68. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 80. South southeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 69. Southwest wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. West southwest wind around 6 mph.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 95.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 96.
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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 CDT Jun 25, 2026
Forecast Valid:
4am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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