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.

Partly Cloudy

23°F

-5°C

Humidity 87%
Wind Speed S 13 mph
Barometer 29.95 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 3 Dec 3:35 am CST
Extended Forecast for

Ottawa IL

  • Overnight

    Overnight: Patchy blowing snow. Cloudy, with a low around 21. South southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 21 °F

    Patchy
    Blowing Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before 4pm. Patchy blowing snow before 9am. Cloudy, with a high near 33. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 33 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -13. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: -1 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 12. Wind chill values as low as -14. Northwest wind around 5 mph becoming calm in the morning. Winds could gust as high as 15 mph.

    High: 12 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -5. Light south wind becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 15 mph.

    Low: -5 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow after midnight. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Patchy blowing snow. Cloudy, with a low around 21. South southwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday
A 30 percent chance of snow, mainly before 4pm. Patchy blowing snow before 9am. Cloudy, with a high near 33. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -13. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 12. Wind chill values as low as -14. Northwest wind around 5 mph becoming calm in the morning. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around -5. Light south wind becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 15 mph.
Friday
Partly sunny, with a high near 25.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
A chance of snow after midnight. Mostly cloudy, with a low around 14.
Sunday
A chance of snow. Mostly cloudy, with a high near 27.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 25.
Monday Night
A chance of snow. Mostly cloudy, with a low around 17.
Tuesday
Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.85°W
Last Update:
3:11 am CST Dec 3, 2025
Forecast Valid:
3am CST Dec 3, 2025-6pm CST Dec 9, 2025
 
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