Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Mostly Cloudy

70°F

21°C

Humidity 78%
Wind Speed W 14 G 18 mph
Barometer 29.94 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 19 May 8:55 am CDT
Extended Forecast for

3 Miles SSW Tiskilwa IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before 10am.  Mostly cloudy, with a high near 74. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 74 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. North wind around 10 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. East wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely.  Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before 10am. Mostly cloudy, with a high near 74. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Partly cloudy, with a low around 47. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 67. North wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 44. East wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 50.
Friday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 53.
Saturday
Mostly cloudy, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 59.
Memorial Day
Partly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Tiskilwa IL
 41.24°N 89.53°W (Elev. 751 ft)
8:47 am CDT May 19, 2026
9am CDT May 19, 2026-6pm CDT May 25, 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