LACON, IL 61540 Weather Forecast & Current Conditions

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LACON/MARSHALL CNTY, IL
Current Weather

6:35 AM CST NOV 11, 2025
Overcast
30°F
Feels Like: 22°F
Dewpoint: 18°F
Rel. Hum.: 58%
Visibility: 10 miles
Wind: SSW at 8 mph
Pressure: 30.03 inches
Last 72 hours

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LACON, IL 61540
Weather Forecast

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Snow Depth pages
TODAY
Cloudy with isolated flurries this morning, then mostly sunny this afternoon. Not as cool with highs in the upper 40s. Southwest winds 15 to 20 mph with gusts up to 30 mph.
TONIGHT
Mostly clear. Not as cool with lows in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph.
WEDNESDAY
Sunny. Highs in the mid 50s. West winds 10 to 15 mph with gusts up to 25 mph.
WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 30s. West winds 5 to 10 mph.
THURSDAY
Mostly sunny. Highs in the upper 50s. Southwest winds around 5 mph.
THURSDAY NIGHT AND FRIDAY
Mostly clear. Lows around 40. Highs in the mid 60s.
FRIDAY NIGHT AND SATURDAY
Mostly cloudy. Lows around 50. Highs in the lower 70s.
SATURDAY NIGHT
Mostly cloudy. A chance of rain after midnight. Lows around 50. Chance of rain 30 percent.
SUNDAY
Mostly sunny with a 30 percent chance of rain. Highs in the mid 60s.
SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A 30 percent chance of rain. Cooler with lows in the upper 30s.
MONDAY
Mostly sunny with a 40 percent chance of rain. Cooler with highs in the mid 50s.

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 PM CST 11/10/2025
Tuesday
11 NOV 2025
LACON, IL 61540 weather forecast Day 1, 0 hours 12 AM 23° 18° Partly Cloudy 12%
RAIN/SNOW
<.05 in
0% Thunder
( 0% severe)
WSW   3 72% 16°
Low 22° LACON, IL 61540 weather forecast Day 1, 3 hours 3 AM 25° 18° Mostly Cloudy SW   6 69% 17°
High 45° LACON, IL 61540 weather forecast Day 1, 6 hours 6 AM 28° 20° Mostly Cloudy 13%
SNOW
<.1 in
0% Thunder
( 0% severe)
SSW   8 63% 18°

Mostly Cloudy



LACON, IL 61540 weather forecast Day 1, 9 hours 9 AM 33° 24° Mostly Cloudy S   13 51% 18°
LACON, IL 61540 weather forecast Day 1, 12 hours 12 PM 41° 33° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SW   14 41% 20°
LACON, IL 61540 weather forecast Day 1, 15 hours 3 PM 45° 39° Partly Cloudy SW   12 41% 23°
LACON, IL 61540 weather forecast Day 1, 18 hours 6 PM 40° 34° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   9 59% 27°
LACON, IL 61540 weather forecast Day 1, 21 hours 9 PM 39° 33° Partly Cloudy WSW   9 70% 30°
Wednesday
12 NOV 2025
LACON, IL 61540 weather forecast Day 2, 0 hours 12 AM 37° 31° Clear 0%

0% Thunder
( 0% severe)
WSW   8 79% 31°
Low 33° LACON, IL 61540 weather forecast Day 2, 3 hours 3 AM 36° 30° Partly Cloudy W   8 82% 31°
High 53° LACON, IL 61540 weather forecast Day 2, 6 hours 6 AM 35° 28° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   8 82% 30°

Partly Cloudy



LACON, IL 61540 weather forecast Day 2, 9 hours 9 AM 42° 36° Partly Cloudy WNW   9 65% 31°
LACON, IL 61540 weather forecast Day 2, 12 hours 12 PM 51° 47° Clear 0%

0% Thunder
( 0% severe)
WNW   12 42% 29°
LACON, IL 61540 weather forecast Day 2, 15 hours 3 PM 52° 48° Partly Cloudy WNW   10 39% 28°
LACON, IL 61540 weather forecast Day 2, 18 hours 6 PM 44° 41° Mostly Cloudy 0%

0% Thunder
( 0% severe)
W   6 57% 30°
LACON, IL 61540 weather forecast Day 2, 21 hours 9 PM 40° 37° Partly Cloudy W   5 67% 30°

LACON/MARSHALL CNTY, IL extended weather forecast

Thursday
13 NOV 2025
Friday
14 NOV 2025
Saturday
15 NOV 2025
Sunday
16 NOV 2025
Monday
17 NOV 2025
Low 31° Low 36° Low 49° Low 52° Low 35°
High 57° High 60° High 71° High 60° High 52°
LACON, IL 61540 weather forecast Day 3 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
Partly Cloudy
1% Rain
Partly Cloudy
6% Rain
Partly Cloudy
12% Rain
Partly Cloudy
19% Rain
Partly Cloudy
16% Rain
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