National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fog/Mist

66°F

19°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.02 in (1016.0 mb)
Dewpoint 64°F (18°C)
Visibility 5.00 mi
Last update 15 Jun 2:54 am CDT
Extended Forecast for

Oreana IL

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 63. North northeast wind around 5 mph.

    Low: 63 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 82. Northeast wind around 8 mph.

    High: 82 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 66. East northeast wind 3 to 7 mph.

    Low: 66 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 84. East wind 5 to 7 mph becoming south in the afternoon.

    High: 84 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. South southeast wind around 6 mph.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. South southwest wind 6 to 10 mph, with gusts as high as 15 mph.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers
    Likely then
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 63. North northeast wind around 5 mph.
Sunday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 82. Northeast wind around 8 mph.
Sunday Night
Mostly cloudy, with a low around 66. East northeast wind 3 to 7 mph.
Monday
Partly sunny, with a high near 84. East wind 5 to 7 mph becoming south in the afternoon.
Monday Night
Partly cloudy, with a low around 67. South southeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 88. South southwest wind 6 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.
Juneteenth
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oreana IL
 39.93°N 88.88°W (Elev. 682 ft)
Last Update:
1:11 am CDT Jun 15, 2025
Forecast Valid:
3am CDT Jun 15, 2025-6pm CDT Jun 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation