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

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

72°F

22°C

Humidity	87%
Wind Speed	S 18 G 32 mph
Barometer	29.43 in (996.3 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	17 Jun 2:54 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles ENE Harristown IL

Tornado Watch until June 17, 10:00pm

Wind Advisory until June 17, 07:00pm

Click here for hazard details and duration

Tornado Watch

Wind Advisory

Tornado Watch until June 17, 10:00pm
Wind Advisory until June 17, 07:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 78 °F
Heavy Rain
and Breezy
Tonight
Low: 62 °F
Heavy Rain
and Breezy
then Partly
Cloudy
Thursday
High: 74 °F
Mostly Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Juneteenth
High: 78 °F
Sunny
Friday Night
Low: 61 °F
Partly Cloudy
Saturday
High: 81 °F
Mostly Sunny
Saturday Night
Low: 63 °F
Mostly Clear
then Chance
Showers

Detailed Forecast

This Afternoon

Showers and thunderstorms, mainly after 5pm. Some of the storms could produce heavy rainfall. High near 78. Breezy, with a south southwest wind around 23 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms, mainly before 9pm. Some of the storms could produce heavy rainfall. Low around 62. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Mostly sunny, with a high near 74. West northwest wind 10 to 13 mph, with gusts as high as 20 mph.

Thursday Night

Mostly clear, with a low around 56. West northwest wind 5 to 8 mph becoming calm in the evening.

Juneteenth

Sunny, with a high near 78. Calm wind becoming west northwest 5 to 8 mph in the morning.

Friday Night

Partly cloudy, with a low around 61. West northwest wind around 5 mph becoming calm in the evening.

Saturday

Mostly sunny, with a high near 81. Southwest wind 5 to 7 mph.

Saturday Night

A 30 percent chance of showers after 1am. Partly cloudy, with a low around 63.