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

62°F

17°C

Humidity 30%
Wind Speed NW 3 mph
Barometer 30.28 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 3:55 pm CDT
Extended Forecast for

Dundas IL

  • Tonight

    Tonight: Mostly clear, with a low around 45. Calm wind becoming south southeast 5 to 8 mph in the evening. Winds could gust as high as 16 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Southwest wind 8 to 18 mph, with gusts as high as 26 mph.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 56. Southwest wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 76. Southwest wind 8 to 11 mph, with gusts as high as 17 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. South wind around 6 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. South wind 7 to 16 mph, with gusts as high as 23 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 62. South wind around 13 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 75. Chance of precipitation is 80%.

    High: 75 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 45. Calm wind becoming south southeast 5 to 8 mph in the evening. Winds could gust as high as 16 mph.
Tuesday
Mostly sunny, with a high near 76. Southwest wind 8 to 18 mph, with gusts as high as 26 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 56. Southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 76. Southwest wind 8 to 11 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 56. South wind around 6 mph.
Thursday
Sunny, with a high near 80. South wind 7 to 16 mph, with gusts as high as 23 mph.
Thursday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 62. South wind around 13 mph, with gusts as high as 21 mph.
Friday
Showers and possibly a thunderstorm. High near 75. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 74.
Saturday Night
A chance of showers. Partly cloudy, with a low around 53.
Sunday
Partly sunny, with a high near 72.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54.
Monday
A chance of showers. Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dundas IL
 38.84°N 88.09°W (Elev. 466 ft)
Last Update:
2:56 pm CDT Apr 20, 2026
Forecast Valid:
4pm CDT Apr 20, 2026-6pm CDT Apr 27, 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