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 with Haze

45°F

7°C

Humidity 82%
Wind Speed E 9 mph
Barometer 30.11 in
Dewpoint 40°F (4°C)
Visibility 5.00 mi
Wind Chill40°F (4°C)
Last update 4 Mar 11:50 am CST
Extended Forecast for

Tonica IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers, mainly after 4pm. Patchy fog after 2pm. Otherwise, cloudy, with a steady temperature around 47. East wind 5 to 10 mph.

    High: 47 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: A chance of showers before midnight, then a chance of showers and thunderstorms between midnight and 2am, then showers likely and possibly a thunderstorm after 2am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 43. East northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before noon. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 56. North northeast wind around 5 mph becoming south southwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers
    Likely and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 3am. Patchy fog after midnight. Otherwise, increasing clouds, with a low around 46. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers after 3pm. Patchy fog before 9am. High near 74. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    High: 74 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A slight chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 49. Breezy. Chance of precipitation is 100%.

    Low: 49 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A 30 percent chance of showers before noon. Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly after 4pm. Patchy fog after 2pm. Otherwise, cloudy, with a steady temperature around 47. East wind 5 to 10 mph.
Tonight
A chance of showers before midnight, then a chance of showers and thunderstorms between midnight and 2am, then showers likely and possibly a thunderstorm after 2am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 43. East northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before noon. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 56. North northeast wind around 5 mph becoming south southwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of showers after 3am. Patchy fog after midnight. Otherwise, increasing clouds, with a low around 46. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers after 3pm. Patchy fog before 9am. High near 74. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Friday Night
A slight chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 49. Breezy. Chance of precipitation is 100%.
Saturday
A 30 percent chance of showers before noon. Partly sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 71.
Monday Night
A chance of showers. Mostly clear, with a low around 56.
Tuesday
Showers likely. Mostly cloudy, with a high near 71. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tonica IL
 41.23°N 89.06°W
Last Update:
11:31 am CST Mar 4, 2026
Forecast Valid:
12pm CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
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