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.

Fair

63°F

17°C

Humidity 73%
Wind Speed W 9 mph
Barometer 29.59 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 4 May 9:59 pm CDT
Extended Forecast for

Tonica IL

  • Tonight

    Tonight: Scattered showers and thunderstorms before 11pm, then isolated showers after 4am. Mostly cloudy, with a low around 48. West wind around 10 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Scattered
    T-storms then
    Isolated
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly between 7am and 10am. Mostly cloudy, with a high near 60. North wind around 10 mph.

    High: 60 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. North wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 57. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 57 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39. Northwest wind 5 to 10 mph.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers and thunderstorms before 11pm, then isolated showers after 4am. Mostly cloudy, with a low around 48. West wind around 10 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers, mainly between 7am and 10am. Mostly cloudy, with a high near 60. North wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 42. North wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 57. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around 39. Northwest wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
A chance of showers. Partly sunny, with a high near 67.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tonica IL
 41.21°N 89.06°W
Last Update:
9:06 pm CDT May 4, 2026
Forecast Valid:
10pm CDT May 4, 2026-6pm CDT May 11, 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