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Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

76°F

24°C

Humidity 55%
Wind Speed E 6 mph
Barometer 30.21 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 3 Aug 11:35 am CDT
Extended Forecast for

Ottawa IL

  • Today

    Today: Widespread haze. Mostly sunny, with a high near 80. East wind around 5 mph.

    High: 80 °F

    Haze

  • Tonight

    Tonight: Widespread haze. Partly cloudy, with a low around 59. East southeast wind around 5 mph becoming northeast after midnight.

    Low: 59 °F

    Haze

  • Monday

    Monday: Mostly sunny, with a high near 82. East wind 5 to 10 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. East wind around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 82. East southeast wind around 5 mph, with gusts as high as 15 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Widespread haze. Mostly sunny, with a high near 80. East wind around 5 mph.
Tonight
Widespread haze. Partly cloudy, with a low around 59. East southeast wind around 5 mph becoming northeast after midnight.
Monday
Mostly sunny, with a high near 82. East wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 63. East wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. East southeast wind around 5 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 69.
Friday
Mostly sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 90.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.85°W
11:27 am CDT Aug 3, 2025
11am CDT Aug 3, 2025-6pm CDT Aug 9, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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