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.

Light Snow

22°F

-6°C

Humidity 71%
Wind Speed W 17 G 33 mph
Barometer 30.03 in (1017.7 mb)
Dewpoint 14°F (-10°C)
Visibility 9.00 mi
Wind Chill8°F (-13°C)
Last update 16 Mar 7:54 pm CDT
Extended Forecast for

Argenta IL

  • Tonight

    Tonight: Isolated snow showers before 1am. Mostly cloudy, with a low around 11. Wind chill values between -6 and 1. Blustery, with a west northwest wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    Low: 11 °F

    Isolated Snow
    Showers and
    Blustery

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Wind chill values between -6 and 4. West northwest wind 10 to 15 mph, with gusts as high as 21 mph.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely. Cloudy, with a low around 24. South wind 7 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Snow Likely

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 52. South wind 13 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.

    High: 52 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35. West wind 6 to 8 mph becoming south after midnight.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64. South wind 7 to 10 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. North northwest wind around 8 mph becoming southeast after midnight.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Isolated snow showers before 1am. Mostly cloudy, with a low around 11. Wind chill values between -6 and 1. Blustery, with a west northwest wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 27. Wind chill values between -6 and 4. West northwest wind 10 to 15 mph, with gusts as high as 21 mph.
Tuesday Night
Snow likely. Cloudy, with a low around 24. South wind 7 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 52. South wind 13 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 35. West wind 6 to 8 mph becoming south after midnight.
Thursday
Mostly sunny, with a high near 64. South wind 7 to 10 mph.
Thursday Night
Partly cloudy, with a low around 41. North northwest wind around 8 mph becoming southeast after midnight.
Friday
Mostly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Partly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Argenta IL
 39.99°N 88.82°W (Elev. 676 ft)
Last Update:
7:35 pm CDT Mar 16, 2026
Forecast Valid:
8pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation