LACON, IL 61540 Weather Forecast & Current Conditions

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61540 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
LACON/MARSHALL CNTY, IL Current Weather
4:35 PM CST FEB 4, 2026
Clear 28°F
Feels Like:	28°F
Dewpoint:	12°F
Rel. Hum.:	47%
Visibility:	10 miles
Wind:	Calm
Pressure:	30.38 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

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(Automated weather data from NWS/FAA)

61540 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	LACON, IL 61540 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Clear this evening, then becoming mostly cloudy. Lows around 14. Northwest winds around 5 mph, becoming southwest after midnight.

THURSDAY
Mostly cloudy with a chance of flurries. Highs in the mid 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

THURSDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Not as cool with lows in the upper 20s. West winds 10 to 15 mph.

FRIDAY
Partly sunny in the morning, then becoming mostly cloudy. Breezy with highs in the lower 40s. Northwest winds 15 to 25 mph.

FRIDAY NIGHT
Mostly cloudy in the evening, then clearing. Cooler with lows around 15. North winds 10 to 15 mph with gusts up to 25 mph.

SATURDAY
Sunny in the morning, then becoming partly sunny. Cooler with highs around 30.

SATURDAY NIGHT
Mostly cloudy. Lows in the lower 20s.

SUNDAY
Mostly sunny. Not as cool with highs in the lower 40s.

SUNDAY NIGHT
Mostly clear. Lows in the upper 20s.

MONDAY
Mostly sunny. Highs in the lower 50s.

MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s.

TUESDAY
Mostly sunny. Highs in the mid 50s.

TUESDAY NIGHT
Mostly clear with a 30 percent chance of rain. Lows in the mid 30s.

61540 WEATHER SATELLITE LOOPS

Visible Weather Satellite
LACON, IL 61540

Infrared Weather Satellite
LACON, IL 61540

61540 WEATHER RADAR LOOP

NEXRAD Weather Radar
LACON, IL 61540

MOS COMPUTER WEATHER FORECAST

LACON/MARSHALL CNTY, IL 3 hourly weather forecast

weather forecast created 6:00 AM CST 2/ 4/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
4 FEB 2026

12 PM

25°

21°

Partly Cloudy

0%

0% Thunder
( 0% severe)

N 1

54%

12°

High 29°

3 PM

28°

25°

Clear

NNW 2

45%

11°

Clear

6 PM

22°

18°

Clear

0%

0% Thunder
( 0% severe)

CALM

55%

10°

9 PM

18°

13°

Clear

CALM

64%

9°

Thursday
5 FEB 2026

12 AM

15°

10°

Clear

1%

0% Thunder
( 0% severe)

CALM

70%

8°

Low 13°

3 AM

14°

9°

Partly Cloudy

SSW 1

74%

8°

High 34°

6 AM

17°

12°

Mostly Cloudy

10%
RAIN/SNOW
<.05 in

0% Thunder
( 0% severe)

SSW 3

70%

10°

Mostly Cloudy

9 AM

22°

13°

Mostly Cloudy

SSW 8

68%

14°

12 PM

30°

20°

Mostly Cloudy

5%

0% Thunder
( 0% severe)

SSW 12

61%

19°

3 PM

34°

27°

Mostly Cloudy

WSW 9

63%

23°

6 PM

32°

26°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

SW 6

71%

24°

9 PM

30°

24°

Mostly Cloudy

WSW 6

84%

26°

Friday
6 FEB 2026

12 AM

30°

25°

Partly Cloudy

2%

0% Thunder
( 0% severe)

W 5

81%

25°

Low 26°

3 AM

29°

22°

Partly Cloudy

W 7

84%

25°

High 42°

6 AM

31°

22°

Partly Cloudy

1%

0% Thunder
( 1% severe)

W 10

84%

27°

Mostly Cloudy

9 AM

35°

26°

Mostly Cloudy

WNW 13

82%

30°

12 PM

40°

32°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

NNW 15

67%

30°

3 PM

40°

32°

Mostly Cloudy

NNW 14

62%

28°

6 PM

36°

28°

Mostly Cloudy

NNW 10

63%

25°


LACON/MARSHALL CNTY, IL extended weather forecast
Saturday 7 FEB 2026	Sunday 8 FEB 2026	Monday 9 FEB 2026	Tuesday 10 FEB 2026	Wednesday 11 FEB 2026
Low 16°	Low 23°	Low 26°	Low 40°	Low 29°
High 29°	High 36°	High 49°	High 51°	High 40°

Clear	Mostly Cloudy 14% Snow	Clear 7% Rain/Snow	Partly Cloudy 18% Rain	Partly Cloudy 12% Rain/Snow

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