Flash Flood Concerns in Mid-Atlantic, Severe Weather Threats in Upper Midwest, and Fire Weather in the West

Once again, heavy rain and thunderstorms may produce flash flooding across the Mid-Atlantic region today. Flash flood watches are in effect, which includes the Philadelphia and Washington D.C. metro areas. Meanwhile, severe thunderstorms with damaging winds and large hail are possible from North Dakota into Minnesota. Finally, red flag warnings are in effect across several states in the West. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

80°F

27°C

Humidity	49%
Wind Speed	S 7 mph
Barometer	30.18 in (1021.6 mb)
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	7 Aug 1:54 pm CDT

More Information:

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

Extended Forecast for

Decatur IL

This
Afternoon

Sunny
High: 82 °F
Tonight

Mostly Clear
Low: 59 °F
Saturday

Mostly Sunny
High: 86 °F
Saturday
Night

Partly Cloudy
then Chance
T-storms
Low: 70 °F
Sunday

Chance
T-storms
High: 90 °F
Sunday
Night

Partly Cloudy
then Chance
T-storms
Low: 73 °F
Monday

Chance
T-storms
High: 90 °F
Monday
Night

Chance
T-storms
Low: 69 °F
Tuesday

Partly Sunny
then Chance
T-storms
High: 85 °F

Detailed Forecast

This Afternoon

Sunny, with a high near 82. Southeast wind around 8 mph.

Tonight

Mostly clear, with a low around 59. Southeast wind around 5 mph.

Saturday

Mostly sunny, with a high near 86. South wind 6 to 10 mph.

Saturday Night

A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind around 6 mph.

Sunday

A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 90. South southwest wind 6 to 8 mph, with gusts as high as 16 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South southwest wind around 7 mph, with gusts as high as 16 mph.

Monday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. West southwest wind 6 to 8 mph, with gusts as high as 17 mph.

Monday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

Tuesday

A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.

Tuesday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69.

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 85.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.