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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

67°F

19°C

Humidity 27%
Wind Speed W 13 G 28 mph
Barometer 29.64 in (1003.5 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 18 Feb 11:54 am CST
Extended Forecast for

3 Miles W Arthur IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 68. West wind 11 to 17 mph, with gusts as high as 25 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Southwest wind around 8 mph becoming south southeast after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers, then showers and thunderstorms likely after noon. Mostly cloudy, with a high near 65. South southeast wind 9 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance
    Showers then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 35. Breezy, with a south wind 13 to 22 mph becoming west after midnight. Winds could gust as high as 30 mph.

    Low: 35 °F

    Chance
    Showers then
    Mostly Clear
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 44. Breezy, with a west wind 14 to 23 mph, with gusts as high as 33 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. West northwest wind 7 to 10 mph, with gusts as high as 15 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 38. Northwest wind 8 to 13 mph, with gusts as high as 17 mph.

    High: 38 °F

    Partly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight. Partly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Breezy.

    High: 33 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 68. West wind 11 to 17 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 46. Southwest wind around 8 mph becoming south southeast after midnight.
Thursday
A chance of showers, then showers and thunderstorms likely after noon. Mostly cloudy, with a high near 65. South southeast wind 9 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 35. Breezy, with a south wind 13 to 22 mph becoming west after midnight. Winds could gust as high as 30 mph.
Friday
Mostly sunny, with a high near 44. Breezy, with a west wind 14 to 23 mph, with gusts as high as 33 mph.
Friday Night
Mostly clear, with a low around 25. West northwest wind 7 to 10 mph, with gusts as high as 15 mph.
Saturday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 38. Northwest wind 8 to 13 mph, with gusts as high as 17 mph.
Saturday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 33. Breezy.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Arthur IL
 39.72°N 88.52°W (Elev. 682 ft)
Last Update:
11:36 am CST Feb 18, 2026
Forecast Valid:
12pm CST Feb 18, 2026-6pm CST Feb 24, 2026
 
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Additional Resources

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Chance of Precipitation