Roachtown Lake, IL Weather Forecast & Current Conditions

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Roachtown Lake, IL Weather Maps

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Roachtown Lake Weather Map
UTC Time: 10/24/2026, 00:16
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Roachtown Lake, IL Regional Weather

Expires:202610240100;;078516
ASUS43 KLOT 240010
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 PM CDT FRI OCT 23 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.


ILZ079-100>102-240100-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BELLEVILLE     CLEAR     63  51  64 CALM      30.23R TC  17           
CAHOKIA*       CLEAR     61  51  70 SE3       30.24R TC  16           
SPARTA*        CLEAR     62  46  55 CALM      30.27R TC  17           
$$


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

Roachtown Lake, IL

Afternoon
Sunny
75°/ 48° 24°/ 9°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night
Mostly Cloudy
52°11°
0%
Wednesday
Mostly Cloudy
52°/ 52° 11°/ 11°
0%
Tue Night
Mostly Cloudy
52°11°
0%
Wednesday
Sunny
78°26°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds around 5 mph.

Monroe County, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night
Mostly Cloudy
50°10°
0%
Wednesday
Mostly Cloudy
50°/ 52° 10°/ 11°
0%
Tue Night
Mostly Cloudy
50°10°
0%
Wednesday
Sunny
78°26°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. Southeast winds around 5 mph.

Alton, IL

Afternoon
Sunny
75°/ 48° 24°/ 9°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night
Mostly Cloudy
52°11°
0%
Wednesday
Mostly Cloudy
52°/ 52° 11°/ 11°
0%
Tue Night
Mostly Cloudy
52°11°
0%
Wednesday
Sunny
78°26°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds around 5 mph.

Alton, MO

Tonight
Clear
48°9°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°/ 52° 26°/ 11°
0%
Monday
Mostly Cloudy
78°26°
0%
Tue Night
Mostly Cloudy
78°26°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thu-Thu Night
Cloudy
75°24°
0%
Friday
Rain Showers
72°22°
20%

Night: Mostly clear. Lows in the upper 40s. Southeast winds around 5 mph.

Chester, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
52°11°
0%
Mon Night
Mostly Cloudy
50°10°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
78°26°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. Southeast winds around 5 mph.

Jefferson County, MO

Tonight
Clear
45°7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°/ 50° 26°/ 10°
0%
Monday
Mostly Cloudy
78°26°
0%
Tue Night
Mostly Cloudy
78°26°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°24°
0%

Night: Mostly clear. Lows in the mid 40s. Southeast winds around 5 mph.

Centralia, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
50°10°
0%
Mon Night
Mostly Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. Southeast winds around 5 mph.

Litchfield, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
48°9°
0%
Mon Night
Mostly Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. Southeast winds around 5 mph.

Pinckneyville, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
78°/ 48° 26°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
50°10°
0%
Mon Night
Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
78°26°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. East winds around 5 mph in the evening, becoming light and variable.

Greene County, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night
Mostly Cloudy
52°11°
0%
Wednesday
Mostly Cloudy
52°/ 78° 11°/ 26°
0%
Tue Night
Mostly Cloudy
52°11°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds 5 to 10 mph.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. Southeast winds around 5 mph.

Washington, MO

Tonight
Cloudy
45°7°
0%
Saturday
Sunny
78°/ 48° 26°/ 9°
0%
Sunday
Sunny
78°/ 52° 26°/ 11°
0%
Monday
Mostly Cloudy
75°24°
0%
Tue Night
Mostly Cloudy
75°24°
0%
Wed-Wed Night
Clear
78°26°
0%
Thu-Thu Night
Cloudy
75°24°
0%
Friday
Rain Showers
72°22°
20%

Night: Mostly clear this evening, then becoming partly cloudy. Lows in the mid 40s. Southeast winds around 5 mph.

Farmington, MO

Tonight
Clear
45°7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°/ 48° 26°/ 9°
0%
Monday
Mostly Cloudy
75°24°
0%
Tue Night
Mostly Cloudy
75°24°
0%
Wed-Wed Night
Clear
78°26°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°24°
0%

Night: Mostly clear. Lows in the mid 40s. Southeast winds around 5 mph this evening, becoming light and variable.

Perryville, MO

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
78°/ 48° 26°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
50°10°
0%
Mon Night
Mostly Cloudy
50°10°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
78°26°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. Southeast winds around 5 mph in the evening, becoming light and variable.

Carbondale, IL

Afternoon
Sunny
75°/ 48° 24°/ 9°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
50°10°
0%
Mon Night
Mostly Cloudy
50°10°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. East winds around 5 mph.

Night: Mostly clear. Lows in the upper 40s. East winds around 5 mph in the evening, becoming light and variable.

Mount Vernon, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
48°9°
0%
Mon Night
Mostly Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
78°26°
0%

Day: Sunny. Near steady temperature in the mid 70s. Southeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. East winds around 5 mph in the evening, becoming light and variable.

West Frankfort, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
78°/ 48° 26°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
48°9°
0%
Mon Night
Mostly Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
78°26°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
78°26°
0%

Day: Sunny. Near steady temperature in the mid 70s. East winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. East winds around 5 mph in the evening, becoming light and variable.

Cape Girardeau, MO

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
50°10°
0%
Mon Night
Mostly Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
75°24°
0%

Day: Sunny. Near steady temperature in the mid 70s. East winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. East winds around 5 mph in the evening, becoming light and variable.

Herrin, IL

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
78°26°
0%

Day: Sunny. Near steady temperature in the mid 70s. East winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. East winds around 5 mph in the evening, becoming light and variable.

Marble Hill, MO

Afternoon
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Sunny
78°/ 48° 26°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
48°9°
0%
Mon Night
Mostly Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
78°26°
0%

Day: Sunny. Near steady temperature in the mid 70s. East winds around 5 mph.

Night: Mostly clear. Lows in the mid 40s. East winds around 5 mph in the evening, becoming light and variable.

Jonesboro, IL

Afternoon
Sunny
75°/ 48° 24°/ 9°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sunday
Sunny
78°26°
0%
Sun Night-Mon
Mostly Cloudy
50°10°
0%
Mon Night
Mostly Cloudy
48°9°
0%
Tue-Tue Night
Mostly Cloudy
75°24°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%

Day: Sunny. Near steady temperature in the mid 70s. East winds around 5 mph.

Night: Mostly clear. Lows in the upper 40s. East winds around 5 mph in the evening, becoming light and variable.

Names listed above may include county names.

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