Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05° N Lon: 90.11° W Elev: 614 ft.

Partly Cloudy

74°F

23°C

Humidity 73%
Wind Speed SW 10 mph
Barometer 29.33 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 17 Jun 6:35 pm CDT
Detailed forecast for

Jo Daviess County

Tonight
Mostly clear with isolated showers this evening, then mostly cloudy after midnight. Lows in the mid 50s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
Thursday
Mostly sunny. Highs in the mid 70s. Northwest winds 10 to 15 mph.
Thursday Night
Mostly clear. Lows in the lower 50s. Northwest winds 5 to 10 mph.
Juneteenth
Sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph.
Friday Night
Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. West winds around 5 mph. Chance of rain 30 percent.
Saturday
Mostly sunny. Highs in the upper 70s.
Saturday Night
Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the upper 50s. Chance of rain 30 percent.
Sunday
Showers likely. A chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent.
Sunday Night
Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the mid 50s. Chance of rain 40 percent.
Monday Through Wednesday
Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.



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642 PM CDT Wed Jun 17 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database