Simpson Pond, IL Weather Forecast & Current Conditions

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Simpson Pond, IL Weather Maps

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Simpson Pond Weather Map
UTC Time: 9/24/2026, 07:37
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Simpson Pond, IL Regional Weather

Expires:202609240800;;966196
ASUS43 KLOT 240710
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 AM CDT THU SEP 24 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>102-240800-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLOUDY    63  56  79 CALM      30.28F TC  17           
BELLEVILLE     CLOUDY    64  58  82 NE3       30.25S TC  18           
CAHOKIA*       CLOUDY    64  55  72 NE7       30.26F TC  18           
SPARTA*        CLOUDY    62  56  81 N3        30.27F 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

Simpson Pond, IL

Overnight
Mostly Cloudy
55°13°
0%
Thursday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Friday
Sunny
80°/ 55° 27°/ 13°
0%
Saturday
Rain Showers
75°24°
20%
Sunday
Rain Showers
75°24°
20%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Wednesday
Thunderstorms
78°26°
50%

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Monroe County, IL

Overnight
Mostly Cloudy
55°13°
0%
Thursday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Friday
Partly Cloudy
80°/ 55° 27°/ 13°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
30%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Wednesday
Thunderstorms
80°27°
50%

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Chester, MO

Tonight
Mostly Cloudy
58°14°
0%
Thursday
Mostly Cloudy
72°/ 58° 22°/ 14°
0%
Friday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
30%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Wednesday
Thunderstorms
78°26°
50%

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Alton, IL

Overnight
Mostly Cloudy
58°14°
0%
Thursday
Partly Cloudy
78°/ 62° 26°/ 17°
0%
Friday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Saturday
Rain Showers
72°/ 58° 22°/ 14°
40%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
80°27°
50%

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Perryville, MO

Tonight
Mostly Cloudy
55°13°
0%
Thursday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
75°24°
0%
Sunday
Mostly Cloudy
75°24°
0%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Rain Showers
85°/ 62° 29°/ 17°
60%

Night: Mostly cloudy. Lows in the mid 50s. North winds around 5 mph.

Centralia, IL

Overnight
Cloudy
55°13°
0%
Thursday
Partly Cloudy
78°/ 60° 26°/ 16°
0%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
72°/ 55° 22°/ 13°
20%
Sunday
Partly Cloudy
75°24°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Clear
58°14°
0%
Tuesday
Rain Showers
85°/ 65° 29°/ 18°
60%
Wednesday
Thunderstorms
80°27°
50%

Night: Partly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Pinckneyville, IL

Tonight
Drizzle
55°13°
0%
Thursday
Drizzle
72°/ 58° 22°/ 14°
0%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
75°24°
0%
Sunday
Mostly Cloudy
75°24°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Clear
58°14°
0%
Tuesday
Rain Showers
85°/ 62° 29°/ 17°
60%

Night: Mostly cloudy. Patchy very light drizzle after midnight. Lows in the mid 50s. North winds around 5 mph.

Jefferson County, MO

Tonight
Mostly Cloudy
58°14°
0%
Thursday
Mostly Cloudy
72°/ 58° 22°/ 14°
0%
Friday
Partly Cloudy
80°/ 58° 27°/ 14°
20%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%
Sunday
Rain Showers
78°26°
20%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Wednesday
Thunderstorms
80°27°
50%

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Farmington, MO

Tonight
Mostly Cloudy
58°14°
0%
Thursday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Friday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
40%
Sunday
Rain Showers
78°/ 55° 26°/ 13°
40%
Mon-Mon Night
Cloudy
80°27°
0%
Tuesday
Rain Showers
82°/ 62° 28°/ 17°
70%
Wednesday
Thunderstorms
78°26°
50%

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Carbondale, IL

Tonight
Drizzle
55°13°
0%
Thursday
Drizzle
72°/ 58° 22°/ 14°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
75°24°
0%
Sunday
Mostly Cloudy
75°24°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Rain Showers
85°/ 65° 29°/ 18°
50%
Wednesday
Rain Showers
78°26°
60%

Night: Mostly cloudy. Patchy very light drizzle after midnight. Lows in the mid 50s. North winds around 5 mph.

Alton, MO

Tonight
Mostly Cloudy
58°14°
0%
Thursday
Mostly Cloudy
72°/ 62° 22°/ 17°
0%
Friday
Partly Cloudy
78°/ 60° 26°/ 16°
20%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Rain Showers
78°26°
20%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
80°27°
50%

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Washington, MO

Tonight
Mostly Cloudy
58°14°
0%
Thursday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Friday
Partly Cloudy
78°/ 58° 26°/ 14°
30%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Mon-Mon Night
Cloudy
82°28°
0%
Tuesday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Wednesday
Thunderstorms
78°26°
50%

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Cape Girardeau, MO

Tonight
Mostly Cloudy
55°13°
0%
Thursday
Partly Cloudy
72°/ 58° 22°/ 14°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
75°24°
0%
Sunday
Mostly Cloudy
75°24°
0%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Rain Showers
85°/ 62° 29°/ 17°
50%

Night: Mostly cloudy. Lows in the mid 50s. North winds 5 to 10 mph.

Marble Hill, MO

Tonight
Mostly Cloudy
55°13°
0%
Thursday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
75°24°
0%
Sunday
Mostly Cloudy
75°24°
0%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Rain Showers
82°/ 62° 28°/ 17°
60%
Wednesday
Rain Showers
78°26°
50%

Night: Mostly cloudy. Lows in the mid 50s. North winds 5 to 10 mph.

Mount Vernon, IL

Tonight
Drizzle
55°13°
0%
Thursday
Drizzle
75°/ 58° 24°/ 14°
0%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
75°24°
0%
Sunday
Mostly Cloudy
75°24°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Clear
58°14°
0%
Tuesday
Rain Showers
85°/ 65° 29°/ 18°
50%

Night: Mostly cloudy. Patchy very light drizzle after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph.

West Frankfort, IL

Tonight
Drizzle
58°14°
0%
Thursday
Drizzle
75°/ 58° 24°/ 14°
0%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
78°26°
0%
Sunday
Mostly Cloudy
78°26°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Clear
58°14°
0%
Tuesday
Rain Showers
85°/ 65° 29°/ 18°
50%

Night: Mostly cloudy. Patchy very light drizzle after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph.

Herrin, IL

Tonight
Drizzle
58°14°
0%
Thursday
Drizzle
75°/ 58° 24°/ 14°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Saturday
Mostly Cloudy
78°26°
0%
Sunday
Mostly Cloudy
78°26°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Clear
58°14°
0%
Tuesday
Rain Showers
85°/ 65° 29°/ 18°
50%

Night: Mostly cloudy. Patchy very light drizzle after midnight. Lows in the upper 50s. North winds 5 to 10 mph.

Litchfield, IL

Overnight
Mostly Cloudy
55°13°
0%
Thursday
Mostly Cloudy
78°/ 58° 26°/ 14°
0%
Friday
Partly Cloudy
78°/ 52° 26°/ 11°
0%
Sat-Sat Night
Rain Showers
70°21°
20%
Sunday
Partly Cloudy
75°24°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Clear
58°14°
0%
Tuesday
Rain Showers
82°/ 62° 28°/ 17°
70%
Wednesday
Thunderstorms
78°26°
50%

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Jonesboro, IL

Tonight
Drizzle
55°13°
0%
Thursday
Drizzle
75°/ 58° 24°/ 14°
0%
Friday
Sunny
80°/ 58° 27°/ 14°
0%
Saturday
Mostly Cloudy
78°26°
0%
Sunday
Mostly Cloudy
78°26°
0%
Sun Night-Mon
Cloudy
55°13°
0%
Mon Night
Clear
60°16°
0%
Tuesday
Rain Showers
85°/ 65° 29°/ 18°
50%

Night: Mostly cloudy. Patchy very light drizzle after midnight. Lows in the mid 50s. North winds around 5 mph.

Piedmont, MO

Tonight
Mostly Cloudy
52°11°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
0%
Friday
Sunny
80°/ 55° 27°/ 13°
0%
Sat-Sat Night
Mostly Cloudy
75°24°
0%
Sunday
Rain Showers
78°26°
40%
Sun Night
Cloudy
58°14°
0%
Mon Night
Cloudy
58°14°
0%
Tuesday
Rain Showers
85°/ 62° 29°/ 17°
60%
Wednesday
Rain Showers
78°26°
50%

Night: Mostly cloudy this evening, then becoming partly cloudy. Lows in the lower 50s. North winds around 5 mph.

Names listed above may include county names.

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