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

72°F

22°C

Humidity 50%
Wind Speed W 12 G 21 mph
Barometer 29.67 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 16 Jun 6:23 pm CDT
Extended Forecast for

Tonica IL

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 55. West northwest wind 10 to 15 mph becoming west southwest 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 55 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. High near 76. South southeast wind 5 to 10 mph becoming south southeast 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

    High: 76 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Severe
    Thunderstorms
    then Mostly
    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 73 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. West northwest wind 5 to 10 mph.

    Low: 55 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 57.

    Low: 57 °F

    Clear then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 1am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 55. West northwest wind 10 to 15 mph becoming west southwest 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. High near 76. South southeast wind 5 to 10 mph becoming south southeast 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Mostly sunny, with a high near 73. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 55. West northwest wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 77.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
A chance of showers after 1am. Mostly cloudy, with a low around 61.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Monday
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tonica IL
 41.21°N 89.06°W
Last Update:
4:51 pm CDT Jun 16, 2026
Forecast Valid:
6pm CDT Jun 16, 2026-6pm CDT Jun 23, 2026
 
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