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

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair and Breezy

32°F

0°C

Humidity 48%
Wind Speed S 24 G 32 mph
Barometer 29.73 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 24 Feb 10:50 am CST
Extended Forecast for

Ottawa IL

  • Today

    Today: A 30 percent chance of light rain with a slight chance of showers after 5pm. Cloudy, with a high near 45. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 45 °F

    Chance Light
    Rain and
    Breezy

  • Tonight

    Tonight: A 30 percent chance of light rain with a slight chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 25. Southwest wind 10 to 15 mph becoming west northwest in the evening.

    Low: 25 °F

    Chance Light
    Rain then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 37. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 37 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 23. West northwest wind around 5 mph becoming north northeast after midnight.

    Low: 23 °F

    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 44. North northeast wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 44 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

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

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

Detailed Forecast

Today
A 30 percent chance of light rain with a slight chance of showers after 5pm. Cloudy, with a high near 45. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Tonight
A 30 percent chance of light rain with a slight chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 25. Southwest wind 10 to 15 mph becoming west northwest in the evening.
Wednesday
Sunny, with a high near 37. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 23. West northwest wind around 5 mph becoming north northeast after midnight.
Thursday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 44. North northeast wind 5 to 10 mph becoming south southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Partly sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
A chance of snow. Mostly sunny, with a high near 34.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 22.
Monday
A chance of snow. Partly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.85°W
Last Update:
11:00 am CST Feb 24, 2026
Forecast Valid:
11am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation