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

74°F

23°C

Humidity 40%
Wind Speed W 12 G 20 mph
Barometer 29.63 in (1002.7 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 15 Nov 2:54 pm CST
Extended Forecast for

2 Miles SE Mount Zion IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. West northwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. North northwest wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54. Northwest wind 8 to 11 mph, with gusts as high as 17 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30. West northwest wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 55. Calm wind becoming southeast 5 to 9 mph in the morning.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Rain likely. Mostly cloudy, with a low around 42. Southeast wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain Likely

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 59. South southeast wind 10 to 14 mph, with gusts as high as 18 mph.

    High: 59 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 75. West northwest wind 11 to 16 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 37. North northwest wind 8 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 54. Northwest wind 8 to 11 mph, with gusts as high as 17 mph.
Sunday Night
Mostly clear, with a low around 30. West northwest wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 55. Calm wind becoming southeast 5 to 9 mph in the morning.
Monday Night
Rain likely. Mostly cloudy, with a low around 42. Southeast wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 59. South southeast wind 10 to 14 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 44.
Thursday
Rain. Mostly cloudy, with a high near 60.
Thursday Night
Rain likely. Mostly cloudy, with a low around 49.
Friday
Rain likely. Mostly cloudy, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Mount Zion IL
 39.75°N 88.86°W (Elev. 709 ft)
Last Update:
2:36 pm CST Nov 15, 2025
Forecast Valid:
3pm CST Nov 15, 2025-6pm CST Nov 21, 2025
 
Forecast Discussion
 
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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