Severe Weather in the Plains; Heavy Rainfall in the Ohio and Tennessee Valleys; Heat Wave in the Central U.S.

Numerous severe storms with a potential for severe wind gusts, tornadoes (some potentially strong), and very large hail are expected in parts of the central and northern Plains. Heavy rainfall may bring a flooding threat to parts of the northern Plains and from the Ohio Valley to the Southeast. Fire weather concerns persist in the Four Corners Region. Hot and humid expected in the central U.S.. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Mostly Cloudy

86°F

30°C

Humidity	65%
Wind Speed	NW 13 G 17 mph
Barometer	29.90 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	9 Jun 3:15 pm CDT

More Information:

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

Extended Forecast for

Sycamore IL

This Afternoon
High: 87 °F
Mostly Sunny
Tonight
Low: 68 °F
Mostly Clear
then Chance
T-storms
Wednesday
High: 91 °F
Slight Chance
T-storms then
Chance
T-storms and
Breezy
Wednesday Night
Low: 69 °F
T-storms
Likely
Thursday
High: 88 °F
Slight Chance
T-storms then
T-storms and
Breezy
Thursday Night
Low: 58 °F
T-storms then
Showers
Friday
High: 76 °F
Sunny
Friday Night
Low: 58 °F
Clear
Saturday
High: 84 °F
Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 87. West wind around 10 mph, with gusts as high as 15 mph.

Tonight

A 40 percent chance of showers and thunderstorms, mainly between 3am and 5am. Partly cloudy, with a low around 68. West northwest wind around 5 mph becoming calm. Winds could gust as high as 10 mph.

Wednesday

A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Heat index values as high as 101. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

Wednesday Night

Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 69. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

Thursday

A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 88. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

Thursday Night

Showers and possibly a thunderstorm before 1am. Low around 58. Chance of precipitation is 90%.

Friday

Sunny, with a high near 76.

Friday Night

Clear, with a low around 58.

Saturday

Sunny, with a high near 84.

Saturday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 60.

Sunday

Partly sunny, with a high near 77.