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.

Mostly Cloudy

56°F

13°C

Humidity 28%
Wind Speed W 18 G 28 mph
Barometer 30.19 in (1022.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 19 Apr 11:54 am CDT
Extended Forecast for

2 Miles E Elwin IL

Frost Advisory April 20, 01:00am until April 20, 08:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 60. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 32 mph.

    High: 60 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. North wind 5 to 14 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 60. Light and variable wind becoming east around 6 mph in the morning.

    High: 60 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Southwest wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Southwest wind around 10 mph, with gusts as high as 16 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81. Breezy.

    High: 81 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 60. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 32 mph.
Tonight
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. North wind 5 to 14 mph, with gusts as high as 22 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 60. Light and variable wind becoming east around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 47. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 77. Southwest wind 13 to 18 mph, with gusts as high as 29 mph.
Tuesday Night
Mostly clear, with a low around 57. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 77. Southwest wind around 10 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 81. Breezy.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73.
Friday Night
Showers likely. Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Elwin IL
 39.8°N 88.91°W (Elev. 656 ft)
Last Update:
12:06 pm CDT Apr 19, 2026
Forecast Valid:
12pm CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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