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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Light Rain

29°F

-2°C

Humidity 91%
Wind Speed N 18 mph
Barometer 30.07 in
Dewpoint 26°F (-3°C)
Visibility 4.00 mi
Wind Chill17°F (-8°C)
Last update 7 Dec 7:55 am CST
Extended Forecast for

Ottawa IL

  • Today

    Today: Snow likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 18 by 5pm. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 29 °F⇓

    Snow Likely
    then Mostly
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 9. Wind chill values as low as -1. North wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 15 mph.

    Low: 9 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 22. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14. South wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 38. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 38 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain, mainly before midnight. Low around 33. Breezy. Chance of precipitation is 80%.

    Low: 33 °F

    Rain then
    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: A slight chance of rain and snow showers before noon. Mostly cloudy, with a high near 35. Breezy. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Rain/Snow and
    Breezy then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow after noon. Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Snow likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 18 by 5pm. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Increasing clouds, with a low around 9. Wind chill values as low as -1. North wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 15 mph.
Monday
Partly sunny, with a high near 22. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 14. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, with a high near 38. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Rain, mainly before midnight. Low around 33. Breezy. Chance of precipitation is 80%.
Wednesday
A slight chance of rain and snow showers before noon. Mostly cloudy, with a high near 35. Breezy. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 19.
Thursday
A chance of snow after noon. Mostly cloudy, with a high near 26.
Thursday Night
A chance of snow before midnight. Mostly cloudy, with a low around 8.
Friday
Partly sunny, with a high near 15.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
Partly sunny and cold, with a high near 10.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.82°W
Last Update:
8:01 am CST Dec 7, 2025
Forecast Valid:
8am CST Dec 7, 2025-6pm CST Dec 13, 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