Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Light Snow and Windy

30°F

-1°C

Humidity 89%
Wind Speed W 26 G 35 mph
Barometer 29.87 in
Dewpoint 27°F (-3°C)
Visibility 2.00 mi
Wind Chill16°F (-9°C)
Last update 30 Nov 2:15 am CST
Extended Forecast for

Ottawa IL

  • Overnight

    Overnight: A 50 percent chance of snow.  Areas of blowing snow after 4am. Cloudy, with a low around 24. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.

    Low: 24 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Sunday

    Sunday: A 30 percent chance of snow, mainly before 7am.  Areas of blowing snow before 3pm. Cloudy, with a high near 29. Breezy, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 29 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10. West northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: Snow after noon.  High near 26. Calm wind.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 26 °F

    Cloudy then
    Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight.  Low around 14. Calm wind becoming west northwest around 5 mph after midnight.  Chance of precipitation is 90%.

    Low: 14 °F

    Snow then
    Slight Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of snow. Areas of blowing snow after 4am. Cloudy, with a low around 24. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.
Sunday
A 30 percent chance of snow, mainly before 7am. Areas of blowing snow before 3pm. Cloudy, with a high near 29. Breezy, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.
Sunday Night
Mostly cloudy, with a low around 10. West northwest wind 5 to 10 mph becoming light and variable after midnight.
Monday
Snow after noon. High near 26. Calm wind. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday Night
Snow, mainly before midnight. Low around 14. Calm wind becoming west northwest around 5 mph after midnight. Chance of precipitation is 90%.
Tuesday
Partly sunny, with a high near 23.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Mostly cloudy, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 2.
Thursday
Sunny, with a high near 11.
Thursday Night
Partly cloudy, with a low around -5.
Friday
Partly sunny, with a high near 22.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
Mostly cloudy, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.85°W
1:56 am CST Nov 30, 2025
2am CST Nov 30, 2025-6pm CST Dec 6, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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