Weather Alert
Marsh Lake Weather Warning NWS WEATHER ALERT FOR THE MARSH LAKE, IL AREA - Issued: 137 PM CDT Sun Oct 18 2026 Marsh Lake Weather Warning

World > North America > United States > Illinois > Marsh Lake  

Marsh Lake, IL Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Marsh Lake, IL Weather Maps

°F °C°F °C
Marsh Lake Weather Map
UTC Time: 10/19/2026, 06:42
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Marsh Lake, IL Regional Weather

Expires:202610190700;;347201
ASUS43 KLOT 190610
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 AM CDT MON OCT 19 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.


ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190700-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLEAR     42  41  96 CALM      30.38S TC   6           
6HR MIN TEMP:  42; 6HR MAX TEMP:  55;                                

CAIRO*         CLEAR     44  44  99 CALM      30.38S TC   7           
EFFINGHAM*     CLEAR     41  39  94 CALM      30.41S TC   5           
MT. VERNON     CLEAR     38  37  97 CALM      30.39S TC   3           
CENTRALIA*     CLEAR     40  39  95 CALM      30.39S TC   5           
SALEM*         CLEAR     42  40  91 MISG      30.39S TC   6           
METROPOLIS*    CLEAR     42  42  98 CALM      30.39S TC   6           
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed  PRES - Barometric Pressure  VSB - Visibility
WCI - Wind Chill Index  E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Marsh Lake, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
75°/ 42° 24°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°/ 50° 26°/ 10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Carbondale, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°/ 50° 26°/ 10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

West Frankfort, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
75°/ 42° 24°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
78°/ 45° 26°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night-Sun
Cloudy
52°11°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Herrin, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night-Sun
Cloudy
52°11°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Mount Vernon, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
75°/ 42° 24°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°/ 50° 26°/ 10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Perryville, MO

Overnight
Clear
38°3°
0%
Monday
Sunny
75°/ 42° 24°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 45° 7°/ 7°
0%
Sat Night-Sun
Cloudy
50°10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Jonesboro, IL

Overnight
Clear
40°4°
0%
Monday
Sunny
72°/ 45° 22°/ 7°
0%
Tuesday
Sunny
75°/ 45° 24°/ 7°
0%
Wednesday
Sunny
75°/ 48° 24°/ 9°
0%
Thursday
Clear
48°9°
0%
Friday
Clear
48°/ 48° 9°/ 9°
0%
Sat Night-Sun
Cloudy
52°11°
0%

Night: Clear. Lows around 40. Calm winds.

Cape Girardeau, MO

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night-Sun
Cloudy
50°10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Vienna, IL

Overnight
Clear
42°6°
0%
Monday
Sunny
72°/ 45° 22°/ 7°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night-Sun
Cloudy
50°10°
0%

Night: Clear. Near steady temperature in the lower 40s. Calm winds.

McLeansboro, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night-Sun
Cloudy
50°10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Harrisburg, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night-Sun
Cloudy
50°10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Marble Hill, MO

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 45° 7°/ 7°
0%
Sat Night-Sun
Cloudy
48°9°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Cairo, IL

Overnight
Clear
42°6°
0%
Monday
Sunny
75°/ 45° 24°/ 7°
0%
Tuesday
Sunny
75°/ 45° 24°/ 7°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Clear
48°9°
0%
Friday
Clear
48°/ 48° 9°/ 9°
0%
Sat Night-Sun
Cloudy
52°11°
0%

Night: Clear. Lows in the lower 40s. Calm winds.

Fairfield, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Sunny
75°/ 48° 24°/ 9°
0%
Saturday
Sunny
78°/ 50° 26°/ 10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Mound City, IL

Overnight
Clear
40°4°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
78°/ 45° 26°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night-Sun
Cloudy
50°10°
0%

Night: Clear. Lows around 40. Calm winds.

Golconda, IL

Overnight
Clear
42°6°
0%
Monday
Sunny
72°/ 45° 22°/ 7°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 48° 24°/ 9°
0%
Thursday
Clear
48°9°
0%
Fri Night
Clear
48°9°
0%
Saturday
Sunny
78°/ 50° 26°/ 10°
0%

Night: Clear. Near steady temperature in the lower 40s. Calm winds.

Sikeston, MO

Overnight
Clear
42°6°
0%
Monday
Sunny
75°/ 45° 24°/ 7°
0%
Tuesday
Sunny
75°/ 45° 24°/ 7°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Clear
48°9°
0%
Friday
Clear
48°/ 48° 9°/ 9°
0%
Sat Night-Sun
Cloudy
52°11°
0%

Night: Clear. Lows in the lower 40s. Calm winds.

Metropolis, IL

Overnight
Clear
42°6°
0%
Monday
Sunny
75°/ 42° 24°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%
Sat Night
Clear
48°9°
0%
Sunday
Sunny
78°26°
0%

Night: Clear. Near steady temperature in the lower 40s. Calm winds.

Carmi, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 48° 24°/ 9°
0%
Thursday
Clear
48°9°
0%
Fri Night
Clear
48°9°
0%
Saturday
Sunny
78°/ 50° 26°/ 10°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Shawneetown, IL

Overnight
Clear
38°3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Fri Night
Clear
45°7°
0%
Saturday
Sunny
78°/ 48° 26°/ 9°
0%

Night: Clear. Lows in the upper 30s. Calm winds.

Names listed above may include county names.

Trending Headlines

Trending Entertainment Headlines

Marsh Lake Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Marsh Lake Quick Facts

National Two Day Weather Forecast


E-mail the Marsh Lake Weather Forecast

Voice your opinion or tell us about page issues...