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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

36°F

2°C

Humidity 82%
Wind Speed Calm
Barometer 30.31 in (1026.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 5:54 am CDT
Extended Forecast for

3 Miles W Maroa IL

Frost Advisory April 20, 06:07am until April 20, 08:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory April 20, 06:07am until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Today

    High: 61 °F

    Frost then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. South southeast wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 30 mph.

    High: 77 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Southwest wind 13 to 15 mph, with gusts as high as 24 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. West southwest wind around 11 mph, with gusts as high as 17 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. South wind around 10 mph, with gusts as high as 17 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Breezy, with a south wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 80 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 70%.

    Low: 61 °F

    Mostly Cloudy
    and Breezy
    then Showers
    Likely

Detailed Forecast

Today
Widespread frost before 8am. Otherwise, sunny, with a high near 61. Light and variable wind becoming south around 6 mph in the morning.
Tonight
Mostly clear, with a low around 47. South southeast wind 8 to 13 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 77. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 58. Southwest wind 13 to 15 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 78. West southwest wind around 11 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 56. South wind around 10 mph, with gusts as high as 17 mph.
Thursday
Mostly sunny, with a high near 80. Breezy, with a south wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 70%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Maroa IL
 40.04°N 89.02°W (Elev. 699 ft)
Last Update:
4:37 am CDT Apr 20, 2026
Forecast Valid:
6am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation