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
7:15 AM CDT APR 29, 2026
Overcast 50°F
Feels Like:	46°F
Dewpoint:	41°F
Rel. Hum.:	71%
Visibility:	10 miles
Wind:	NW at 9 mph, gusts to 18
Pressure:	29.96 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Weather Map

(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

TODAY
Mostly sunny. Highs in the lower 60s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

TONIGHT
Mostly clear. Lows in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph, diminishing to around 5 mph after midnight.

THURSDAY
Mostly sunny. Highs in the lower 60s. Northwest winds 10 to 15 mph.

THURSDAY NIGHT
Partly cloudy. Lows in the upper 30s. Northwest winds 5 to 10 mph.

FRIDAY
Mostly sunny. Highs in the upper 50s. Northwest winds 5 to 10 mph.

FRIDAY NIGHT AND SATURDAY
Partly cloudy. Areas of frost through the day. Lows in the upper 30s. Highs in the upper 50s.

SATURDAY NIGHT
Mostly clear. Lows in the lower 40s.

SUNDAY
Mostly sunny. Not as cool with highs in the upper 60s.

SUNDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the upper 40s. Chance of rain 30 percent.

MONDAY THROUGH TUESDAY
Partly cloudy. Highs in the lower 70s. Lows in the upper 40s.

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 7:00 PM CDT 4/28/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
CDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Wednesday
29 APR 2026

1 AM

52°

51°

Mostly Cloudy

0% Thunder
( 3% severe)

N 5

69%

42°

Low 48°

4 AM

49°

46°

Mostly Cloudy

N 7

74%

41°

High 62°

7 AM

49°

46°

Mostly Cloudy

0% Thunder
( 1% severe)

NNW 7

71%

40°

Partly Cloudy

10 AM

55°

52°

Clear

NNW 10

55%

39°

1 PM

59°

57°

Partly Cloudy

0% Thunder
( 2% severe)

NW 13

40%

35°

4 PM

60°

58°

Partly Cloudy

NW 13

33%

31°

7 PM

56°

54°

Clear

0% Thunder
( 2% severe)

NNW 9

37%

30°

10 PM

47°

46°

Clear

NNW 3

53%

31°

Thursday
30 APR 2026

1 AM

43°

42°

Clear

0% Thunder
( 1% severe)

NW 1

62%

31°

Low 39°

4 AM

41°

39°

Partly Cloudy

NW 1

67%

31°

High 61°

7 AM

42°

41°

Partly Cloudy

0% Thunder
( 2% severe)

WNW 2

70%

33°

Partly Cloudy

10 AM

53°

51°

Partly Cloudy

WNW 7

48%

34°

1 PM

58°

56°

Partly Cloudy

0% Thunder
( 7% severe)

NW 10

37%

32°

4 PM

59°

57°

Partly Cloudy

NW 10

36%

32°

7 PM

54°

52°

Mostly Cloudy

0% Thunder
( 4% severe)

NW 8

41%

31°

10 PM

47°

45°

Partly Cloudy

NNW 5

58%

33°


LACON/MARSHALL CNTY, IL extended weather forecast
Friday 1 MAY 2026	Saturday 2 MAY 2026	Sunday 3 MAY 2026	Monday 4 MAY 2026	Tuesday 5 MAY 2026
Low 37°	Low 34°	Low 37°	Low 49°	Low 53°
High 58°	High 58°	High 67°	High 70°	High 71°

Partly Cloudy 35% Rain	Partly Cloudy 15% Rain	Partly Cloudy 12% Rain	Mostly Cloudy 29% Rain	Overcast 42% Rain