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
8:15 PM CST MAR 3, 2026
Overcast 43°F
Feels Like:	43°F
Dewpoint:	32°F
Rel. Hum.:	65%
Visibility:	10 miles
Wind:	Calm
Pressure:
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
Cloudy with a 20 percent chance of rain showers. Lows in the mid 30s. Northeast winds 5 to 10 mph.

WEDNESDAY
Cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

WEDNESDAY NIGHT
Showers. Patchy fog. Near steady temperature in the mid 40s. East winds around 5 mph. Chance of rain 90 percent.

THURSDAY
Mostly cloudy. Showers likely in the morning. Not as cool with highs in the lower 60s. West winds 5 to 10 mph. Chance of rain 60 percent.

THURSDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 40s. Southeast winds 5 to 10 mph. Chance of rain 40 percent.

FRIDAY AND FRIDAY NIGHT
Showers with a chance of thunderstorms. Highs in the mid 70s. Lows in the lower 50s. Chance of rain 90 percent.

SATURDAY
Mostly cloudy with a chance of showers in the morning, then mostly sunny in the afternoon. Cooler with highs in the lower 60s. Chance of rain 30 percent.

SATURDAY NIGHT AND SUNDAY
Mostly clear. Lows in the upper 30s. Highs in the mid 60s.

SUNDAY NIGHT AND MONDAY
Mostly clear. Lows in the lower 40s. Highs around 70.

MONDAY NIGHT
Mostly clear. Lows in the lower 50s.

TUESDAY
Partly sunny with a 50 percent chance of showers. Highs around 70.

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 3/ 3/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
3 MAR 2026

12 PM

43°

42°

Mostly Cloudy

31%
RAIN
.1–.25 in

0% Thunder
( 5% severe)

SE 1

73%

35°

High 47°

3 PM

46°

45°

Mostly Cloudy

NNE 1

65%

35°

Mostly Cloudy

Chance of Rain

6 PM

44°

43°

Mostly Cloudy

20%
RAIN
<.01 in

0% Thunder
( 4% severe)

ENE 2

70%

35°

9 PM

40°

38°

Mostly Cloudy

ENE 2

79%

34°

Wednesday
4 MAR 2026

12 AM

37°

34°

Mostly Cloudy

30%
RAIN
<.01 in

0% Thunder
( 6% severe)

NE 3

85%

33°

Low 34°

3 AM

35°

31°

Mostly Cloudy

ENE 5

89%

32°

High 51°

6 AM

35°

30°

Mostly Cloudy

38%
RAIN
.1–.25 in

0% Thunder
( 6% severe)

ENE 6

89%

32°

Mostly Cloudy

Chance of Rain

9 AM

40°

35°

Mostly Cloudy

ENE 7

82%

35°

12 PM

47°

44°

Mostly Cloudy

33%
RAIN
***

0% Thunder
( 7% severe)

E 7

71%

38°

3 PM

51°

50°

Mostly Cloudy

E 5

66%

40°

6 PM

48°

47°

Mostly Cloudy

53%
RAIN
***

0% Thunder
( 15% severe)

E 2

77%

41°

9 PM

46°

45°

Mostly Cloudy

E 1

89%

43°

Thursday
5 MAR 2026

12 AM

45°

44°

Mostly Cloudy

74%
RAIN
***

0% Thunder
( 20% severe)

E 1

93%

43°

Low 41°

3 AM

45°

44°

Mostly Cloudy

E 2

93%

43°

High 59°

6 AM

45°

44°

Mostly Cloudy

59%
RAIN
***

0% Thunder
( 5% severe)

W 2

93%

43°

Mostly Cloudy

Rain Likely

9 AM

49°

48°

Mostly Cloudy

W 3

86%

45°

12 PM

54°

53°

Mostly Cloudy

28%
RAIN
.25–.5 in

0% Thunder
( 0% severe)

W 6

74%

46°

3 PM

59°

58°

Mostly Cloudy

W 6

62%

46°

6 PM

54°

54°

Partly Cloudy

SW 3

71%

45°


LACON/MARSHALL CNTY, IL extended weather forecast
Friday 6 MAR 2026	Saturday 7 MAR 2026	Sunday 8 MAR 2026	Monday 9 MAR 2026	Tuesday 10 MAR 2026
Low 44°	Low 52°	Low 36°	Low 41°	Low 52°
High 68°	High 61°	High 60°	High 60°	High 72°

Overcast 71% Rain	Overcast 73% Rain	Clear 9% Rain	Clear 12% Rain	Mostly Cloudy 37% Rain

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