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Severe Thunderstorms With Heavy Rain from Great Lakes to Mid-Atlantic; Excessive Heat For Central/Southern U.S. to Mid-Atlantic

Severe thunderstorms are possible today into Sunday across the upper Great Lakes region to the northern Mid-Atlantic. Damaging winds, large hail, and flooding will be the primary threats with these storms. Meanwhile, dangerous heat will continue through Sunday across the central and southern U.S. into the Mid-Atlantic. Read More >

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

91°F

33°C

Humidity 56%
Wind Speed W 13 mph
Barometer 29.82 in (1009.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 22 Jul 2:54 pm CDT
Extended Forecast for

Decatur IL

Excessive Heat Warning until July 22, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 22, 08:00pm

    NOW until
    8:00pm Sat

    Excessive Heat Warning

  • This
    Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 94. Heat index values as high as 110. West southwest wind 11 to 13 mph, with gusts as high as 17 mph.

    Slight Chance
    T-storms

    High: 94 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 74. West wind 5 to 7 mph becoming east northeast in the evening.

    Chance
    T-storms

    Low: 74 °F

  • Sunday

    Sunday: Partly sunny, with a high near 90. Northwest wind 5 to 7 mph.

    Partly Sunny

    High: 90 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 66. West northwest wind 3 to 7 mph.

    Chance
    T-storms

    Low: 66 °F

  • Monday

    Monday: Mostly sunny, with a high near 84. North wind around 6 mph.

    Mostly Sunny

    High: 84 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 64. East northeast wind 3 to 6 mph.

    Mostly Clear

    Low: 64 °F

  • Tuesday

    Tuesday: Sunny, with a high near 85. East wind 3 to 5 mph.

    Sunny

    High: 85 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 67.

    Mostly Clear

    Low: 67 °F

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 110. West southwest wind 11 to 13 mph, with gusts as high as 17 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 74. West wind 5 to 7 mph becoming east northeast in the evening.
Sunday
Partly sunny, with a high near 90. Northwest wind 5 to 7 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. West northwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 84. North wind around 6 mph.
Monday Night
Mostly clear, with a low around 64. East northeast wind 3 to 6 mph.
Tuesday
Sunny, with a high near 85. East wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Mostly cloudy, with a low around 73.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 87.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Decatur IL
 39.86°N 88.94°W (Elev. 682 ft)
2:54 pm CDT Jul 22, 2017
3pm CDT Jul 22, 2017-6pm CDT Jul 29, 2017
 
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