Round Knob, IL Weather Forecast & Current Conditions

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Round Knob, IL Weather Maps

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Round Knob Weather Map
UTC Time: 9/20/2026, 21:01
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Round Knob, IL Regional Weather

Expires:202609202200;;782932
ASUS43 KLOT 202056
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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>094-202200-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     MOSUNNY   95  63  34 W9        29.85F HX  96  TC  35   
$$


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

Round Knob, 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.

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.

Golconda, 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.

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.

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.

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.

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.

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.

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.

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.

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.

Bardwell, KY

Afternoon
Sunny
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
40%
Tuesday
Partly Cloudy
82°/ 60° 28°/ 16°
0%
Wed-Wed Night
Clear
80°27°
0%
Thursday
Cloudy
80°27°
0%
Fri Night
Cloudy
80°27°
0%
Saturday
Partly Cloudy
82°28°
0%

Day: Mostly 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.

Mayfield, KY

Afternoon
Partly Cloudy
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
50%
Tuesday
Partly Cloudy
85°/ 60° 29°/ 16°
0%
Wed Night
Clear
58°14°
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. West 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.

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.

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.

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.

Eddyville, 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.

Charleston, MO

Afternoon
Sunny
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
30%
Tuesday
Partly Cloudy
82°/ 60° 28°/ 16°
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: Mostly 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, becoming northwest after midnight.

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.

Clinton, KY

Afternoon
Sunny
95°/ 72° 35°/ 22°
0%
Monday
Partly Cloudy
95°/ 65° 35°/ 18°
40%
Tuesday
Partly Cloudy
85°/ 60° 29°/ 16°
0%
Wed-Wed Night
Clear
82°28°
0%
Thursday
Cloudy
82°28°
0%
Fri Night
Cloudy
82°28°
0%
Saturday
Partly Cloudy
82°28°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. West 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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