On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Dangerous heat continues across lower Miss. Valley, Deep South

High temperatures and dew points will persist Thursday into Friday across parts of the lower Miss. Valley & Deep South, creating dangerous heat index values in excess of 110 degrees for some locations. Heat Advisories & Excessive Heat Warnings are in effect across the region. Take extra precautions if you work or spend time outside & know the signs and symptoms of heat exhaustion and heat stroke.
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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

87°F

31°C

Humidity 40%
Wind Speed W 13 mph
Barometer 30.14 in (1020.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Jul 12:54 pm CDT
Extended Forecast for

Decatur IL

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 87. West northwest wind around 11 mph, with gusts as high as 16 mph.

    Sunny

    High: 87 °F

  • Tonight

    Tonight: Clear, with a low around 64. West wind around 6 mph.

    Clear

    Low: 64 °F

  • Friday

    Friday: Sunny, with a high near 88. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    Sunny

    High: 88 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 64. West wind 7 to 9 mph.

    Partly Cloudy

    Low: 64 °F

  • Saturday

    Saturday: Sunny, with a high near 85. Northwest wind 6 to 8 mph.

    Sunny

    High: 85 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 63.

    Partly Cloudy

    Low: 63 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 84.

    Chance
    T-storms

    High: 84 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 68.

    Partly Cloudy

    Low: 68 °F

  • Monday

    Monday: Mostly sunny, with a high near 86.

    Mostly Sunny

    High: 86 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 87. West northwest wind around 11 mph, with gusts as high as 16 mph.
Tonight
Clear, with a low around 64. West wind around 6 mph.
Friday
Sunny, with a high near 88. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
Partly cloudy, with a low around 64. West wind 7 to 9 mph.
Saturday
Sunny, with a high near 85. Northwest wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 86.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
  Click Map For Forecast
Point Forecast:
Decatur IL
 39.86°N 88.94°W (Elev. 682 ft)
12:12 pm CDT Jul 30, 2015
1pm CDT Jul 30, 2015-6pm CDT Aug 5, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database