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
3:55 PM CST MAR 6, 2026
Overcast Rain 66°F
Feels Like:	66°F
Dewpoint:	59°F
Rel. Hum.:	78%
Visibility:	5 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
Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers after midnight. Not as cool with lows in the upper 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

SATURDAY
Mostly cloudy. Showers likely with a chance of thunderstorms in the morning. Cooler. Less humid with highs in the lower 60s. Temperature falling into the upper 40s in the afternoon. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

SATURDAY NIGHT
Partly cloudy in the evening, then clearing. Much cooler with lows in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph.

SUNDAY
Sunny. Highs in the lower 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph.

SUNDAY NIGHT
Clear. Not as cool with lows in the mid 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

MONDAY
Sunny. Not as cool with highs in the lower 70s.

MONDAY NIGHT
Mostly clear. Lows in the upper 40s.

TUESDAY
Sunny with a chance of showers in the morning, then partly sunny with showers with a chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 80 percent.

TUESDAY NIGHT
Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the upper 30s. Chance of rain 80 percent.

WEDNESDAY
Cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Much cooler with highs around 50. Chance of rain 40 percent.

WEDNESDAY NIGHT
Partly cloudy. Cooler with lows in the upper 20s.

THURSDAY
Sunny. Highs in the lower 50s.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 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/ 6/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
6 MAR 2026

12 PM

68°

68°

Mostly Cloudy

63%
RAIN
***

0% Thunder
( 25% severe)

SSW 14

68%

57°

High 73°

3 PM

72°

72°

Mostly Cloudy

SSW 14

59%

57°

Mostly Cloudy

Rain Likely

6 PM

67°

67°

Mostly Cloudy

31%
RAIN
.1–.25 in

0% Thunder
( 26% severe)

S 9

70%

57°

9 PM

65°

65°

Partly Cloudy

S 12

78%

58°

Saturday
7 MAR 2026

12 AM

64°

63°

Mostly Cloudy

92%
RAIN
***

0% Thunder
( 38% severe)

S 14

78%

57°

Low 53°

3 AM

63°

61°

Mostly Cloudy

SSW 15

81%

57°

High 64°

6 AM

61°

59°

Mostly Cloudy

52%
RAIN
.01–.1 in

0% Thunder
( 17% severe)

SSW 14

84%

56°

Mostly Cloudy

Rain Likely

9 AM

61°

59°

Mostly Cloudy

WSW 15

81%

55°

12 PM

55°

51°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

W 16

66%

44°

3 PM

51°

46°

Mostly Cloudy

W 14

59%

37°

6 PM

47°

42°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

WNW 10

60%

34°

9 PM

42°

38°

Partly Cloudy

W 7

70%

33°

Sunday
8 MAR 2026

12 AM

39°

36°

Partly Cloudy

1%

0% Thunder
( 0% severe)

W 5

73%

31°

Low 33°

3 AM

36°

31°

Clear

SW 6

75%

29°

High 63°

6 AM

35°

28°

Partly Cloudy

1%

0% Thunder
( 0% severe)

SW 8

78%

29°

Clear

9 AM

45°

39°

Clear

SW 12

60%

32°

12 PM

57°

54°

Clear

1%

0% Thunder
( 0% severe)

SW 14

39%

32°

3 PM

62°

60°

Clear

SW 14

32%

32°

6 PM

57°

55°

Clear

SSW 10

40%

33°


LACON/MARSHALL CNTY, IL extended weather forecast
Monday 9 MAR 2026	Tuesday 10 MAR 2026	Wednesday 11 MAR 2026	Thursday 12 MAR 2026	Friday 13 MAR 2026
Low 44°	Low 40°	Low 38°	Low 30°	Low 34°
High 65°	High 57°	High 48°	High 52°	High 60°

Clear 3% Rain	Mostly Cloudy 30% Rain	Mostly Cloudy 67% Rain	Clear 12% Rain	Clear 16% Rain

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