Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

52°F

11°C

Humidity 94%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 14 Sep 3:59 am CDT
Extended Forecast for

Ottawa IL

  • Today

    Today: Patchy fog before 9am.  Otherwise, increasing clouds, with a high near 76. Light and variable wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 76 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Increasing clouds, with a low around 69. Southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 10am, then a chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 83. South southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 64. Northeast wind around 5 mph, with gusts as high as 15 mph.  Chance of precipitation is 70%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 79. East northeast wind around 5 mph, with gusts as high as 15 mph.  Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers, with thunderstorms also possible after 1am.  Mostly cloudy, with a low around 69. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers.  Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers after 1am.  Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers.  Partly sunny, with a high near 82.

    High: 82 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, increasing clouds, with a high near 76. Light and variable wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 69. Southeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 83. South southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. East northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Thursday Night
A chance of showers after 1am. Mostly cloudy, with a low around 66.
Friday
A chance of showers. Partly sunny, with a high near 82.
Friday Night
A chance of showers. Partly cloudy, with a low around 67.
Saturday
A chance of showers. Partly sunny, with a high near 80.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 63.
Sunday
A chance of showers. Mostly cloudy, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.85°W
4:00 am CDT Sep 14, 2026
4am CDT Sep 14, 2026-6pm CDT Sep 20, 2026
 
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