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
6:35 PM CST FEB 28, 2026
Clear 30°F
Feels Like:	20°F
Dewpoint:	19°F
Rel. Hum.:	61%
Visibility:	10 miles
Wind:	NNE at 12 mph, gusts to 20
Pressure:	30.21 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Regional Weather Maps

(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
Mostly clear this evening, then becoming mostly cloudy. Lows in the lower 20s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

SUNDAY
Partly sunny. Highs in the upper 30s. Northeast winds 5 to 10 mph.

SUNDAY NIGHT
Mostly cloudy. Lows in the mid 20s. East winds 5 to 10 mph.

MONDAY
Partly sunny in the morning, then becoming mostly cloudy. Highs in the mid 40s. Southeast winds 10 to 15 mph.

MONDAY NIGHT
Cloudy. A chance of rain in the evening, then rain after midnight. Not as cool with lows in the mid 30s. Southeast winds 5 to 10 mph. Chance of rain 80 percent.

TUESDAY
Rain. Highs in the upper 40s. Chance of rain 90 percent.

TUESDAY NIGHT
Mostly cloudy. Rain likely, mainly in the evening. Lows in the upper 30s. Chance of rain 60 percent.

WEDNESDAY
Cloudy. A chance of rain in the morning, then rain likely in the afternoon. Highs in the upper 50s. Chance of rain 60 percent.

WEDNESDAY NIGHT
Rain likely. Lows in the mid 40s. Chance of rain 60 percent.

THURSDAY
Mostly cloudy with a 50 percent chance of rain. Highs in the lower 60s.

THURSDAY NIGHT
Mostly cloudy with a chance of rain. Lows in the upper 40s. Chance of rain 40 percent.

FRIDAY
Mostly cloudy. A chance of rain in the morning, then rain likely in the afternoon. Highs in the mid 60s. Chance of rain 70 percent.

FRIDAY NIGHT
Rain likely. Lows in the mid 40s. Chance of rain 70 percent.

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 2/28/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
28 FEB 2026

12 PM

41°

35°

Mostly Cloudy

6%

0% Thunder
( 1% severe)

NE 9

31%

14°

High 44°

3 PM

43°

37°

Mostly Cloudy

ENE 10

30%

15°

Mostly Cloudy

6 PM

37°

30°

Partly Cloudy

1%

0% Thunder
( 0% severe)

NE 9

42%

17°

9 PM

30°

22°

Partly Cloudy

NE 9

58%

18°

Sunday
1 MAR 2026

12 AM

25°

16°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NNE 8

69%

17°

Low 20°

3 AM

23°

14°

Mostly Cloudy

N 8

72%

16°

High 38°

6 AM

22°

13°

Partly Cloudy

0%

0% Thunder
( 0% severe)

N 8

75%

16°

Mostly Cloudy

9 AM

28°

19°

Partly Cloudy

NNE 9

57%

16°

12 PM

34°

27°

Mostly Cloudy

4%

0% Thunder
( 0% severe)

NE 9

41%

14°

3 PM

37°

31°

Mostly Cloudy

NE 8

34%

13°

6 PM

33°

28°

Mostly Cloudy

19%
SNOW
<.1 in

0% Thunder
( 0% severe)

ENE 6

38%

12°

9 PM

29°

23°

Mostly Cloudy

E 6

50%

14°

Monday
2 MAR 2026

12 AM

26°

20°

Mostly Cloudy

22%
SNOW
<.1 in

0% Thunder
( 0% severe)

E 5

57%

14°

Low 23°

3 AM

24°

18°

Mostly Cloudy

E 5

62%

14°

High 44°

6 AM

24°

17°

Mostly Cloudy

6%

0% Thunder
( 0% severe)

E 6

65%

15°

Mostly Cloudy

9 AM

32°

24°

Mostly Cloudy

ESE 9

53%

18°

12 PM

40°

33°

Mostly Cloudy

6%

0% Thunder
( 0% severe)

SE 10

43%

20°

3 PM

44°

39°

Mostly Cloudy

SE 9

44%

24°

6 PM

40°

35°

Mostly Cloudy

SE 7

56%

26°


LACON/MARSHALL CNTY, IL extended weather forecast
Tuesday 3 MAR 2026	Wednesday 4 MAR 2026	Thursday 5 MAR 2026	Friday 6 MAR 2026	Saturday 7 MAR 2026
Low 34°	Low 38°	Low 38°	Low 42°	Low 41°
High 46°	High 48°	High 53°	High 64°	High 56°

Overcast 58% Rain	Overcast 88% Rain	Overcast 46% Rain	Overcast 46% Rain	Clear 19% Rain

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