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
2:35 PM CDT MAR 9, 2026
Clear 72°F
Feels Like:	72°F
Dewpoint:	48°F
Rel. Hum.:	43%
Visibility:	10 miles
Wind:	SW at 13 mph, gusts to 18
Pressure:	29.69 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
Partly cloudy. Not as cool with lows in the upper 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

TUESDAY
Partly sunny. Patchy fog in the morning. A chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Southwest winds 5 to 10 mph, becoming south in the afternoon. Chance of rain 40 percent.

TUESDAY NIGHT
Showers. Thunderstorms likely, mainly in the evening. Cooler with lows in the mid 40s. South winds 10 to 15 mph, becoming southwest after midnight. Chance of rain near 100 percent.

WEDNESDAY
Showers likely, mainly in the morning. Much cooler with highs in the mid 50s. Temperature falling into the lower 40s in the afternoon. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

WEDNESDAY NIGHT
Partly cloudy in the evening, then clearing. Much cooler with lows in the upper 20s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph with gusts up to 20 mph after midnight.

THURSDAY
Sunny in the morning, then becoming partly sunny. Highs in the upper 40s.

THURSDAY NIGHT
Mostly cloudy. A chance of rain after midnight. Breezy and not as cool with lows around 40. Chance of rain 40 percent.

FRIDAY AND FRIDAY NIGHT
Mostly cloudy and breezy. Highs in the lower 50s. Lows in the lower 30s.

SATURDAY
Cloudy. Highs in the mid 50s.

SATURDAY NIGHT
Mostly cloudy. A chance of rain after midnight. Lows around 40. Chance of rain 40 percent.

SUNDAY
Rain likely. Snow likely in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 50s. Chance of precipitation 70 percent.

SUNDAY NIGHT AND MONDAY
Mostly cloudy. Lows in the lower 20s. Highs 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 3/ 9/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
9 MAR 2026

12 PM

67°

67°

Clear

0%

0% Thunder
( 0% severe)

SSW 13

45%

45°

High 73°

3 PM

72°

72°

Clear

SSW 12

43%

48°

Clear

6 PM

66°

66°

Clear

3%

0% Thunder
( 5% severe)

SSW 6

56%

50°

9 PM

60°

60°

Partly Cloudy

S 5

75%

52°

Tuesday
10 MAR 2026

12 AM

59°

58°

Partly Cloudy

1%

0% Thunder
( 7% severe)

SSW 6

80%

53°

Low 55°

3 AM

57°

56°

Partly Cloudy

SSW 6

86%

53°

High 77°

6 AM

57°

56°

Partly Cloudy

6%

0% Thunder
( 7% severe)

SSW 6

90%

54°

Mostly Cloudy

Chance of Rain

9 AM

62°

61°

Mostly Cloudy

SSW 8

81%

56°

12 PM

69°

69°

Partly Cloudy

48%
RAIN
.1–.25 in

0% Thunder
( 36% severe)

S 9

63%

56°

3 PM

72°

72°

Mostly Cloudy

S 10

57%

56°

6 PM

68°

68°

Mostly Cloudy

90%
RAIN
***

0% Thunder
( 55% severe)

SE 8

68%

57°

9 PM

64°

64°

Mostly Cloudy

SSW 9

81%

58°

Wednesday
11 MAR 2026

12 AM

61°

60°

Mostly Cloudy

80%
RAIN
***

0% Thunder
( 31% severe)

SW 9

84%

56°

Low 42°

3 AM

56°

53°

Mostly Cloudy

WSW 10

86%

52°

High 54°

6 AM

51°

47°

Mostly Cloudy

71%
RAIN
***

0% Thunder
( 6% severe)

NW 10

89%

48°

Overcast

Rain Likely

9 AM

45°

39°

Overcast

NNW 13

86%

41°

12 PM

43°

36°

Overcast

30%
RAIN
.1–.25 in

0% Thunder
( 0% severe)

NW 15

76%

36°

3 PM

43°

36°

Mostly Cloudy

NW 15

65%

32°

6 PM

41°

34°

Mostly Cloudy

NNW 13

62%

29°


LACON/MARSHALL CNTY, IL extended weather forecast
Thursday 12 MAR 2026	Friday 13 MAR 2026	Saturday 14 MAR 2026	Sunday 15 MAR 2026	Monday 16 MAR 2026
Low 29°	Low 35°	Low 33°	Low 40°	Low 24°
High 48°	High 51°	High 53°	High 48°	High 35°

Partly Cloudy 7% Rain/Snow	Partly Cloudy 11% Rain	Mostly Cloudy 13% Rain	Overcast 50% Rain	Mostly Cloudy 40% Rain/Snow

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