Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83° N Lon: 88.87° W Elev: 670 ft.

Overcast

26°F

-3°C

Humidity 84%
Wind Speed W 7 mph
Barometer 30.04 in (1018.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 11 Dec 6:54 am CST
Detailed forecast for

Macon County

Today
Snow this afternoon. Snow accumulation around an inch. Cooler with highs in the upper 20s. West winds around 5 mph, becoming south this afternoon. Chance of snow near 100 percent.
Tonight
Snow with a slight chance of freezing rain, mainly in the evening. Total snow accumulation of 3 to 5 inches. Ice accumulation around a trace. Near steady temperature in the upper 20s. Southeast winds 5 to 10 mph, becoming northeast after midnight. Chance of precipitation near 100 percent.
Friday
Mostly cloudy. Highs in the lower 30s. North winds around 10 mph, becoming northwest in the afternoon.
Friday Night
Mostly cloudy. Cooler with lows around 12. Northwest winds 10 to 15 mph. Wind chill values as low as zero.
Saturday
Cloudy. A chance of snow in the morning, then snow in the afternoon. Snow may be heavy at times in the afternoon. Moderate snow accumulation. Much cooler. Near steady temperature around 13. Temperature falling to around 12 in the afternoon. Northwest winds around 10 mph. Chance of snow 80 percent. Wind chill values as low as 3 below.
Saturday Night
Mostly cloudy in the evening, then clearing. Much colder with lows around 10 below. Wind chill values as low as 25 below.
Sunday And Sunday Night
Mostly clear. Cold. Highs zero to 5 above zero. Lows 5 below to 10 below zero. Wind chill values as low as 25 below.
Monday
Sunny. Not as cool with highs in the mid 20s. Wind chill values as low as 15 below in the morning.
Monday Night And Tuesday
Partly cloudy. Lows around 15. Highs in the mid 30s.
Tuesday Night And Wednesday
Mostly cloudy. Lows in the upper 20s. Highs around 40.



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428 AM CST Thu Dec 11 2025
 
 

Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database