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 CST NOV 18, 2025
Overcast 41°F
Feels Like:	34°F
Dewpoint:	39°F
Rel. Hum.:	93%
Visibility:	10 miles
Wind:	ESE at 12 mph, gusts to 16
Pressure:	29.90 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
Cloudy. A chance of rain, mainly this morning. Highs in the upper 40s. Southeast winds 10 to 15 mph, becoming northeast 5 to 10 mph this afternoon. Chance of rain 50 percent.

TONIGHT
Cloudy. Lows in the upper 30s. Northeast winds 5 to 10 mph.

WEDNESDAY
Cloudy. Highs in the lower 50s. East winds around 5 mph.

WEDNESDAY NIGHT
Mostly cloudy. Lows around 40. Light and variable winds, becoming south around 5 mph after midnight.

THURSDAY
Mostly cloudy. A chance of rain in the afternoon. Highs in the upper 50s. South winds 5 to 10 mph, becoming southwest in the afternoon. Chance of rain 30 percent.

THURSDAY NIGHT
Mostly cloudy. Lows in the upper 30s.

FRIDAY
Partly sunny with a 40 percent chance of rain. Highs in the lower 50s.

FRIDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. A 30 percent chance of rain. Lows in the lower 30s.

SATURDAY AND SATURDAY NIGHT
Partly cloudy. Highs in the lower 50s. Lows in the mid 30s.

SUNDAY AND SUNDAY NIGHT
Mostly clear. Highs in the mid 50s. Lows in the upper 30s.

MONDAY
Mostly sunny. Highs in the upper 50s.

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 PM CST 11/17/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
18 NOV 2025

12 AM

42°

38°

Overcast

86%
RAIN
***

0% Thunder
( 10% severe)

ESE 7

65%

31°

Low 40°

3 AM

41°

35°

Mostly Cloudy

ESE 9

79%

35°

High 52°

6 AM

42°

36°

Mostly Cloudy

41%
RAIN
.01–.1 in

0% Thunder
( 3% severe)

ESE 9

82%

37°

Mostly Cloudy

Chance of Rain

9 AM

46°

42°

Mostly Cloudy

ESE 8

79%

40°

12 PM

50°

47°

Mostly Cloudy

28%
RAIN
.01–.1 in

0% Thunder
( 3% severe)

E 7

71%

41°

3 PM

50°

47°

Mostly Cloudy

ENE 7

68%

40°

6 PM

44°

40°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

NE 7

82%

39°

9 PM

42°

38°

Mostly Cloudy

NE 6

89%

39°

Wednesday
19 NOV 2025

12 AM

41°

39°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

NE 3

86%

37°

Low 37°

3 AM

40°

38°

Mostly Cloudy

NE 3

89%

37°

High 49°

6 AM

40°

38°

Mostly Cloudy

6%

0% Thunder
( 0% severe)

ENE 3

89%

37°

Mostly Cloudy

9 AM

43°

41°

Mostly Cloudy

E 3

82%

38°

12 PM

47°

46°

Mostly Cloudy

4%

0% Thunder
( 0% severe)

E 2

71%

38°

3 PM

48°

47°

Mostly Cloudy

E 1

68%

38°

6 PM

44°

43°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

CALM

86%

40°

9 PM

42°

41°

Mostly Cloudy

CALM

89%

39°


LACON/MARSHALL CNTY, IL extended weather forecast
Thursday 20 NOV 2025	Friday 21 NOV 2025	Saturday 22 NOV 2025	Sunday 23 NOV 2025	Monday 24 NOV 2025
Low 40°	Low 40°	Low 35°	Low 34°	Low 30°
High 58°	High 52°	High 55°	High 54°	High 48°

Mostly Cloudy 14% Rain	Mostly Cloudy 15% Rain	Mostly Cloudy 26% Rain	Clear 8% Rain	Partly Cloudy 8% Rain

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