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January 8-9, 2026: Rare January Flash Flooding and Strong Winds

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Overcast

22°F

-6°C

Humidity	77%
Wind Speed	NA
Barometer	30.14 in
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Last update	11 Jan 4:15 am CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Cortland IL

Overnight
Low: 21 °F
Slight Chance
Snow Showers
and Blustery
Sunday
High: 32 °F
Scattered
Flurries and
Breezy then
Mostly Sunny
Sunday Night
Low: 25 °F
Partly Cloudy
Monday
High: 40 °F
Mostly Sunny
Monday Night
Low: 31 °F
Mostly Cloudy
Tuesday
High: 47 °F
Slight Chance
Showers then
Partly Sunny
Tuesday Night
Low: 29 °F
Mostly Cloudy
then Slight
Chance Snow
Showers
Wednesday
High: 32 °F
Chance Snow
Showers and
Breezy
Wednesday Night
Low: 15 °F
Mostly Cloudy

Detailed Forecast

Overnight

Scattered flurries with a slight chance of snow showers. Cloudy, with a low around 21. Blustery, with a west northwest wind around 20 mph, with gusts as high as 35 mph.

Sunday

Scattered flurries before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 32. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

Sunday Night

Partly cloudy, with a low around 25. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Monday

Mostly sunny, with a high near 40. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

Mostly cloudy, with a low around 31. Southwest wind around 10 mph, with gusts as high as 20 mph.

Tuesday

A 20 percent chance of showers before noon. Partly sunny, with a high near 47.

Tuesday Night

A 20 percent chance of snow showers after 3am. Mostly cloudy, with a low around 29.

Wednesday

A chance of snow showers. Mostly cloudy, with a high near 32. Breezy.