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.

Overcast

32°F

0°C

Humidity 74%
Wind Speed SW 9 mph
Barometer 29.80 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 5 Dec 11:35 pm CST
Extended Forecast for

Ottawa IL

  • Tonight

    Tonight: A 20 percent chance of snow before 2am. Cloudy, with a steady temperature around 29. West wind 5 to 10 mph.

    Low: 29 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 28. West wind around 5 mph becoming calm in the afternoon.

    High: 28 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Snow, mainly after midnight. Temperature rising to around 27 by 4am. Calm wind becoming east northeast around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F⇑

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 25. North wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 25 °F

    Chance Snow
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 6. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 6 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after midnight. Cloudy, with a low around 32.

    Low: 32 °F

    Rain Likely

Detailed Forecast

Tonight
A 20 percent chance of snow before 2am. Cloudy, with a steady temperature around 29. West wind 5 to 10 mph.
Saturday
Mostly cloudy, with a high near 28. West wind around 5 mph becoming calm in the afternoon.
Saturday Night
Snow, mainly after midnight. Temperature rising to around 27 by 4am. Calm wind becoming east northeast around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 50 percent chance of snow, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 25. North wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 6. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Partly sunny, with a high near 21.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 12.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
Rain likely, mainly after midnight. Cloudy, with a low around 32.
Wednesday
A chance of rain showers before noon, then a chance of snow showers. Mostly cloudy, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Mostly cloudy, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 18.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.85°W
Last Update:
10:41 pm CST Dec 5, 2025
Forecast Valid:
11pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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