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
10:15 PM CDT OCT 17, 2026
Clear 45°F
Feels Like:	44°F
Dewpoint:	34°F
Rel. Hum.:	65%
Visibility:	10 miles
Wind:	S at 3 mph
Pressure:	30.45 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 2026 Hurricanes	LACON, IL 61540 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TONIGHT
Clear. Areas of frost. Lows in the mid 30s. South winds around 5 mph.

SUNDAY
Areas of frost in the morning. Sunny. Highs in the mid 60s. South winds 5 to 10 mph with gusts up to 20 mph.

SUNDAY NIGHT
Clear. Lows in the upper 30s. South winds 5 to 10 mph.

MONDAY
Sunny. Highs in the upper 60s. South winds around 5 mph.

MONDAY NIGHT
Mostly clear. Lows in the lower 40s. Light and variable winds.

TUESDAY THROUGH WEDNESDAY
Mostly clear. Highs in the lower 70s. Lows in the mid 40s.

WEDNESDAY NIGHT THROUGH FRIDAY NIGHT
Mostly clear. Lows around 50. Highs in the mid 70s.

SATURDAY
Mostly sunny. Highs in the mid 70s.

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 AM CDT 10/17/2026

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)

Saturday
17 OCT 2026

1 PM

56°

Clear

0% Thunder
( 0% severe)

SW 1

37%

30°

High 60°

4 PM

59°

Clear

SW 5

30%

28°

Clear

7 PM

49°

Clear

0% Thunder
( 0% severe)

CALM

54%

33°

10 PM

43°

42°

Clear

S 1

68%

33°

Sunday
18 OCT 2026

1 AM

42°

40°

Clear

0% Thunder
( 0% severe)

S 3

73%

34°

Low 38°

4 AM

41°

38°

Clear

S 5

76%

34°

High 66°

7 AM

40°

36°

Clear

0% Thunder
( 0% severe)

S 6

79%

34°

Clear

10 AM

52°

49°

Clear

SSW 8

56%

37°

1 PM

64°

Clear

0% Thunder
( 0% severe)

SSW 9

37%

37°

4 PM

66°

Clear

SSW 9

30%

34°

7 PM

54°

53°

Clear

0% Thunder
( 0% severe)

S 5

50%

36°

10 PM

47°

46°

Clear

S 3

63%

35°

Monday
19 OCT 2026

1 AM

44°

43°

Clear

0% Thunder
( 0% severe)

CALM

73%

36°

Low 37°

4 AM

41°

39°

Clear

CALM

79%

35°

High 69°

7 AM

39°

37°

Clear

0% Thunder
( 0% severe)

CALM

85%

35°

Partly Cloudy

10 AM

55°

Clear

CALM

59%

41°

1 PM

67°

Partly Cloudy

0% Thunder
( 0% severe)

CALM

37%

40°

4 PM

69°

Partly Cloudy

CALM

30%

36°

7 PM

57°

58°

Partly Cloudy

CALM

51%

39°


LACON/MARSHALL CNTY, IL extended weather forecast
Tuesday 20 OCT 2026	Wednesday 21 OCT 2026	Thursday 22 OCT 2026	Friday 23 OCT 2026	Saturday 24 OCT 2026
Low 37°	Low 41°	Low 46°	Low 46°	Low 46°
High 67°	High 67°	High 70°	High 70°	High 68°

Clear 3% Rain	Clear 7% Rain	Partly Cloudy 9% Rain	Clear 14% Rain	Partly Cloudy 27% Rain

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LACON, IL 61540 Weather Forecast & Current Conditions

LACON/MARSHALL CNTY, IL Current Weather

LACON, IL 61540 Weather Forecast

LACON/MARSHALL CNTY, IL 3 hourly weather forecast

LACON/MARSHALL CNTY, IL extended weather forecast

LACON/MARSHALL CNTY, IL
Current Weather

LACON, IL 61540
Weather Forecast