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.

Fair

66°F

19°C

Humidity 75%
Wind Speed S 14 mph
Barometer 29.80 in (1008.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Oct 11:54 pm CDT
Extended Forecast for

Oreana IL

  • Overnight

    Overnight: Mostly clear, with a low around 63. South southwest wind 11 to 13 mph, with gusts as high as 18 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 75. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 48. Breezy, with a south southwest wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 48 °F

    Showers and
    Breezy

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 61. Breezy, with a west northwest wind 23 to 25 mph, with gusts as high as 32 mph.

    High: 61 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 41. West wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 16 mph.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 68. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 68 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. South southwest wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. Breezy.

    High: 58 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 63. South southwest wind 11 to 13 mph, with gusts as high as 18 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 75. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 48. Breezy, with a south southwest wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Sunday
A 30 percent chance of showers before 1pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 61. Breezy, with a west northwest wind 23 to 25 mph, with gusts as high as 32 mph.
Sunday Night
Clear, with a low around 41. West wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 16 mph.
Monday
Sunny, with a high near 68. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph.
Monday Night
Mostly clear, with a low around 45. South southwest wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 22 mph.
Tuesday
Sunny, with a high near 58. Breezy.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
A chance of showers. Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oreana IL
 39.93°N 88.88°W (Elev. 682 ft)
Last Update:
11:46 pm CDT Oct 17, 2025
Forecast Valid:
12am CDT Oct 18, 2025-6pm CDT Oct 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation