McCormick, IL Weather Forecast & Current Conditions

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McCormick, IL Weather Maps

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Mccormick Weather Map
UTC Time: 9/21/2026, 02:18
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

McCormick, IL Regional Weather

Expires:202609210300;;794211
ASUS43 KLOT 210210
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT SUN SEP 20 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>094-210300-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLEAR     77  66  69 CALM      29.87R TC  25           
CAIRO*         CLEAR     76  69  79 CALM      29.88S TC  25           
EFFINGHAM*     MOCLDY    75  71  87 NE5       29.94R TC  24           
MARION         CLEAR     77  64  65 S2        29.88R TC  25           
MT. VERNON     MOCLDY    78  71  79 CALM      29.89R HX  80  TC  26   
CENTRALIA*     CLOUDY    81  67  62 NE5       29.90R HX  83  TC  27   
SALEM*         CLOUDY    79  66  65 MISG      29.90R HX  81  TC  26   
METROPOLIS*    CLEAR     73  70  90 CALM      29.89R TC  23           
$$


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

Mccormick, IL

Afternoon
Partly Cloudy
95°/ 70° 35°/ 21°
0%
Monday
Mostly Cloudy
88°/ 65° 31°/ 18°
30%
Tuesday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Fri-Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Southwest winds around 5 mph, becoming north after midnight.

Harrisburg, IL

Afternoon
Partly Cloudy
95°/ 68° 35°/ 20°
20%
Monday
Mostly Cloudy
88°/ 62° 31°/ 17°
0%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Fri-Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. West winds around 5 mph, becoming north after midnight. Chance of rain 20 percent.

Vienna, IL

Afternoon
Sunny
92°/ 70° 33°/ 21°
0%
Monday
Mostly Cloudy
88°/ 65° 31°/ 18°
30%
Tuesday
Sunny
78°/ 58° 26°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Fri-Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Mostly sunny. Hot. Near steady temperature in the lower 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Southwest winds around 5 mph, becoming north after midnight.

Herrin, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
20%
Monday
Mostly Cloudy
88°/ 62° 31°/ 17°
0%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. West winds around 5 mph, becoming north after midnight. Chance of rain 20 percent.

Metropolis, IL

Afternoon
Partly Cloudy
95°/ 70° 35°/ 21°
0%
Monday
Mostly Cloudy
92°/ 65° 33°/ 18°
30%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
80°27°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Southwest winds around 5 mph in the evening, becoming light and variable.

Elizabethtown, IL

Afternoon
Partly Cloudy
92°/ 70° 33°/ 21°
0%
Monday
Mostly Cloudy
88°/ 62° 31°/ 17°
30%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wed Night
Cloudy
55°13°
0%
Thursday
Sunny
75°/ 55° 24°/ 13°
0%
Fri-Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Partly sunny. Hot. Near steady temperature in the lower 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Southwest winds around 5 mph, becoming north after midnight.

Smithland, KY

Afternoon
Partly Cloudy
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
0%
Tuesday
Partly Cloudy
82°/ 58° 28°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
78°26°
0%
Saturday
Cloudy
78°26°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable.

Shawneetown, IL

Afternoon
Partly Cloudy
95°/ 68° 35°/ 20°
0%
Monday
Mostly Cloudy
88°/ 62° 31°/ 17°
0%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wed Night
Cloudy
55°13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Fri-Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the upper 60s. West winds around 5 mph, becoming north after midnight.

Mound City, IL

Afternoon
Sunny
95°/ 70° 35°/ 21°
0%
Monday
Mostly Cloudy
90°/ 65° 32°/ 18°
30%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wed-Wed Night
Clear
78°26°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
80°27°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Southwest winds around 5 mph in the evening, becoming light and variable.

Marion, KY

Afternoon
Partly Cloudy
92°/ 70° 33°/ 21°
0%
Monday
Partly Cloudy
88°/ 62° 31°/ 17°
0%
Tuesday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
78°26°
0%
Saturday
Cloudy
78°26°
0%

Day: Partly sunny. Hot. Near steady temperature in the lower 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows around 70. Southwest winds around 5 mph, becoming northwest after midnight.

West Frankfort, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
30%
Monday
Rain Showers
85°/ 62° 29°/ 17°
40%
Tuesday
Sunny
78°/ 58° 26°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
80°27°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. West winds 5 to 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 30 percent.

Jonesboro, IL

Afternoon
Sunny
95°/ 70° 35°/ 21°
0%
Monday
Rain Showers
88°/ 65° 31°/ 18°
30%
Tuesday
Sunny
78°/ 58° 26°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Southwest winds around 5 mph, becoming north after midnight.

McLeansboro, IL

Afternoon
Partly Cloudy
95°/ 68° 35°/ 20°
40%
Monday
Rain Showers
85°/ 62° 29°/ 17°
40%
Tuesday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
80°27°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. West winds around 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 40 percent.

Carbondale, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
20%
Monday
Rain Showers
85°/ 62° 29°/ 17°
40%
Tuesday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°/ 55° 26°/ 13°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Northwest winds around 5 mph, becoming north after midnight. Chance of rain 20 percent.

Paducah, KY

Afternoon
Partly Cloudy
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
40%
Tuesday
Partly Cloudy
82°/ 58° 28°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
80°27°
0%
Fri Night
Cloudy
80°27°
0%
Saturday
Partly Cloudy
82°28°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable.

Carmi, IL

Afternoon
Partly Cloudy
95°/ 68° 35°/ 20°
20%
Monday
Rain Showers
88°/ 62° 31°/ 17°
30%
Tuesday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Wednesday
Cloudy
55°13°
0%
Thursday
Cloudy
55°13°
0%
Fri Night
Cloudy
55°13°
0%
Saturday
Partly Cloudy
80°27°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Northwest winds around 5 mph, becoming north after midnight. Chance of rain 20 percent.

Wickliffe, KY

Afternoon
Partly Cloudy
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wed-Wed Night
Clear
78°26°
0%
Thursday
Cloudy
80°27°
0%
Fri Night
Cloudy
80°27°
0%
Saturday
Partly Cloudy
82°28°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable.

Morganfield, KY

Afternoon
Partly Cloudy
95°/ 68° 35°/ 20°
0%
Monday
Mostly Cloudy
88°/ 62° 31°/ 17°
0%
Tuesday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Wed Night
Cloudy
55°13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
78°26°
0%
Saturday
Cloudy
78°26°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the upper 60s. Southwest winds around 5 mph, becoming northwest after midnight.

Cairo, IL

Afternoon
Sunny
95°/ 72° 35°/ 22°
0%
Monday
Mostly Cloudy
90°/ 65° 32°/ 18°
30%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wed-Wed Night
Clear
78°26°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°/ 58° 26°/ 14°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s. Southwest winds around 5 mph, becoming north after midnight.

Benton, KY

Afternoon
Partly Cloudy
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
50%
Tuesday
Partly Cloudy
82°/ 62° 28°/ 17°
0%
Wed Night
Cloudy
58°14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
80°27°
0%
Saturday
Cloudy
80°27°
0%

Day: Partly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable.

Names listed above may include county names.

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