LACON, IL 61540 Weather Forecast & Current Conditions

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LACON/MARSHALL CNTY, IL
Current Weather

12:55 PM CST JAN 25, 2026
Broken Clouds
Light Snow
NA
Feels Like: NA
Dewpoint: NA
Rel. Hum.: NA%
Visibility: 10 miles
Wind: N at 10 mph
Pressure:
Last 72 hours

Local Area Snow Depth

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LACON, IL 61540
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Mostly cloudy with a 20 percent chance of snow. Near steady temperature around 12. North winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 6 below.
TONIGHT
Partly cloudy in the evening, then clearing. Cold with lows around 3 below. Northwest winds around 10 mph with gusts up to 25 mph. Wind chill values as low as 18 below.
MONDAY
Sunny. Highs around 11. West winds 10 to 15 mph. Wind chill values as low as 20 below.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Cold with lows around 4 above. Temperature rising to around 12 after midnight. Southwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 14 below.
TUESDAY
Partly sunny. Highs around 19. Northwest winds 15 to 20 mph. Wind chill values as low as 2 below.
TUESDAY NIGHT
Mostly clear. Cold with lows around zero. Wind chill values as low as 15 below.
WEDNESDAY
Partly sunny. Highs 15 to 20. Wind chill values as low as 15 below in the morning.
WEDNESDAY NIGHT AND THURSDAY
Partly cloudy. Lows around zero. Highs around 15. Wind chill values as low as 15 below.
THURSDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Cold with lows zero to 5 above zero.
FRIDAY AND FRIDAY NIGHT
Partly cloudy. Highs around 20. Lows around zero. Wind chill values as low as 10 below.
SATURDAY
Sunny. Highs in the lower 20s. Wind chill values as low as 10 below in the morning.

Visible Weather Satellite
LACON, IL 61540
Infrared Weather Satellite
LACON, IL 61540
NEXRAD Weather Radar
LACON, IL 61540

LACON/MARSHALL CNTY, IL 3 hourly weather forecast

weather forecast created  6:00 AM CST  1/25/2026
Sunday
25 JAN 2026
LACON, IL 61540 weather forecast Day 1, 12 hours 12 PM 10° -5° Mostly Cloudy 8%

0% Thunder
( 0% severe)
N   12 66%
High 13° LACON, IL 61540 weather forecast Day 1, 15 hours 3 PM 12° -2° Mostly Cloudy NNW   12 59%
Mostly Cloudy



LACON, IL 61540 weather forecast Day 1, 18 hours 6 PM -6° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NNW   10 62% -1°
LACON, IL 61540 weather forecast Day 1, 21 hours 9 PM -9° Partly Cloudy NNW   9 58% -5°
Monday
26 JAN 2026
LACON, IL 61540 weather forecast Day 2, 0 hours 12 AM -13° Clear 0%

0% Thunder
( 0% severe)
NW   8 61% -8°
Low -5° LACON, IL 61540 weather forecast Day 2, 3 hours 3 AM -1° -15° Partly Cloudy NW   8 65% -9°
High 10° LACON, IL 61540 weather forecast Day 2, 6 hours 6 AM -2° -17° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   8 68% -9°

Partly Cloudy



LACON, IL 61540 weather forecast Day 2, 9 hours 9 AM -15° Partly Cloudy WNW   9 65% -8°
LACON, IL 61540 weather forecast Day 2, 12 hours 12 PM -9° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   10 52% -6°
LACON, IL 61540 weather forecast Day 2, 15 hours 3 PM -5° Partly Cloudy W   10 45% -6°
LACON, IL 61540 weather forecast Day 2, 18 hours 6 PM -7° Clear 0%

0% Thunder
( 0% severe)
SSW   9 55% -4°
LACON, IL 61540 weather forecast Day 2, 21 hours 9 PM -8° Partly Cloudy SW   13 65%
Tuesday
27 JAN 2026
LACON, IL 61540 weather forecast Day 3, 0 hours 12 AM 10° -6° Partly Cloudy 2%

0% Thunder
( 0% severe)
SW   14 66%
Low 5° LACON, IL 61540 weather forecast Day 3, 3 hours 3 AM 12° -3° Partly Cloudy WSW   13 69%
High 17° LACON, IL 61540 weather forecast Day 3, 6 hours 6 AM 14° Mostly Cloudy 0%

0% Thunder
( 0% severe)
W   10 77%

Mostly Cloudy



LACON, IL 61540 weather forecast Day 3, 9 hours 9 AM 15° Mostly Cloudy WNW   13 66%
LACON, IL 61540 weather forecast Day 3, 15 hours 12 PM 16° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NW   14 54%
LACON, IL 61540 weather forecast Day 3, 18 hours 3 PM 15° Partly Cloudy NW   12 51%
LACON, IL 61540 weather forecast Day 3, 21 hours 6 PM 11° Partly Cloudy     NW   7 56%

LACON/MARSHALL CNTY, IL extended weather forecast

Wednesday
28 JAN 2026
Thursday
29 JAN 2026
Friday
30 JAN 2026
Saturday
31 JAN 2026
Sunday
1 FEB 2026
Low 1° Low 0° Low 6° Low 7° Low 11°
High 16° High 16° High 18° High 24° High 26°
LACON, IL 61540 weather forecast Day 4 LACON, IL 61540 weather forecast Day 5 LACON, IL 61540 weather forecast Day 6 LACON, IL 61540 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
5% Snow
Partly Cloudy
7% Snow
Overcast
20% Snow
Partly Cloudy
12% Snow
Overcast
20% Snow
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