Lake Joy, IL Hourly Weather Updates

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Lake Joy Weather Map
UTC Time: 9/13/2026, 12:37
Your Time:

Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Lake Joy, IL Regional Weather

Expires:202609131300;;380018
ASUS43 KLOT 131210
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT SUN SEP 13 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>094-131300-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL                                               
CAIRO*         MOCLDY    71  71 100 CALM      30.01S TC  22           
EFFINGHAM*     MOCLDY    67  65  94 CALM      30.03R FOG     TC  19   
MT. VERNON     MOCLDY    67  67 100 CALM      30.02S TC  19           
CENTRALIA*     MOCLDY    68  68  98 CALM      30.03R TC  20           
SALEM*         MOCLDY    68  68 100 MISG      30.02R FOG     TC  20   
METROPOLIS*    MOCLDY    69  69  98 CALM      30.02R FOG     TC  21   
$$


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

Lake Joy, IL

Today
Thunderstorms
88°/ 68° 31°/ 20°
20%
Monday
Thunderstorms
95°/ 78° 35°/ 26°
20%
Tuesday
Thunderstorms
95°/ 72° 35°/ 22°
50%
Wednesday
Thunderstorms
95°/ 75° 35°/ 24°
20%
Thursday
Thunderstorms
95°/ 72° 35°/ 22°
30%
Friday
Thunderstorms
88°/ 65° 31°/ 18°
30%

Day: Mostly cloudy with a slight chance of thunderstorms. A chance of showers early this morning, then a slight chance of showers this afternoon. Hot with highs in the upper 80s. Light and variable winds, becoming northeast around 5 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms. Humid with lows in the upper 60s. East winds around 5 mph. Chance of rain 20 percent.

Alton, IL

Today
Partly Cloudy
88°/ 65° 31°/ 18°
0%
Monday
Partly Cloudy
88°/ 72° 31°/ 22°
0%
Tuesday
Thunderstorms
95°/ 72° 35°/ 22°
50%
Wednesday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Thursday
Thunderstorms
92°/ 70° 33°/ 21°
30%
Friday
Rain Showers
88°/ 65° 31°/ 18°
30%

Day: Partly sunny. Highs in the upper 80s. North winds 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Mount Vernon, IL

Today
Sunny
92°/ 62° 33°/ 17°
0%
Monday
Sunny
88°/ 68° 31°/ 20°
0%
Tuesday
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 68° 22°/ 20°
0%

Day: Mostly sunny. Highs in the lower 90s. Northwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph.

Pinckneyville, IL

Today
Partly Cloudy
92°/ 65° 33°/ 18°
0%
Monday
Sunny
88°/ 70° 31°/ 21°
0%
Tuesday
Sunny
95°/ 72° 35°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 68° 22°/ 20°
0%

Day: Partly sunny. Highs in the lower 90s. Calm winds, becoming northwest 5 to 10 mph this afternoon.

Night: Partly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Chester, IL

Today
Sunny
88°/ 65° 31°/ 18°
0%
Monday
Sunny
88°/ 70° 31°/ 21°
0%
Tuesday
Sunny
95°/ 72° 35°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 68° 22°/ 20°
20%
Fri-Fri Night
Rain Showers
88°31°
20%

Day: Mostly sunny. Highs in the upper 80s. Northwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. Northeast winds around 5 mph.

Litchfield, IL

Today
Partly Cloudy
85°/ 62° 29°/ 17°
0%
Monday
Sunny
85°/ 68° 29°/ 20°
0%
Tuesday
Thunderstorms
95°/ 68° 35°/ 20°
50%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
20%
Thursday
Thunderstorms
92°/ 68° 33°/ 20°
30%
Fri-Fri Night
Rain Showers
88°31°
30%

Day: Partly sunny. Highs in the mid 80s. North winds 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Less humid with lows in the lower 60s. Northeast winds 5 to 10 mph.

ILZ102, IL

Today
Partly Cloudy
88°/ 62° 31°/ 17°
0%
Monday
Sunny
88°/ 72° 31°/ 22°
0%
Tuesday
Sunny
95°/ 70° 35°/ 21°
20%
Wed Night
Cloudy
72°22°
0%
Thursday
Thunderstorms
95°/ 68° 35°/ 20°
30%
Friday
Rain Showers
88°/ 62° 31°/ 17°
30%

Day: Partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s. Northeast winds around 5 mph.

West Frankfort, IL

Today
Sunny
92°/ 65° 33°/ 18°
0%
Monday
Sunny
88°/ 70° 31°/ 21°
0%
Tuesday
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 68° 22°/ 20°
0%
Fri Night
Cloudy
68°20°
0%

Day: Mostly sunny. Highs in the lower 90s. Northwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Fairfield, IL

Today
Sunny
92°/ 62° 33°/ 17°
0%
Monday
Sunny
85°/ 68° 29°/ 20°
0%
Tuesday
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 68° 22°/ 20°
0%

Day: Mostly sunny. Highs in the lower 90s. Calm winds, becoming northwest 5 to 10 mph this afternoon.

Night: Partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph.

Flora, IL

Today
Sunny
90°/ 62° 32°/ 17°
0%
Monday
Sunny
85°/ 68° 29°/ 20°
0%
Tuesday
Sunny
98°/ 72° 37°/ 22°
0%
Wed Night
Cloudy
72°22°
0%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Rain Showers
90°32°
30%

Day: Patchy fog this morning. Mostly sunny. Highs around 90. Northwest winds 5 to 10 mph.

Night: Partly cloudy. Less humid with lows in the lower 60s. Northeast winds 5 to 10 mph.

Carbondale, IL

Today
Sunny
92°/ 65° 33°/ 18°
0%
Monday
Sunny
88°/ 72° 31°/ 22°
0%
Tuesday
Sunny
95°/ 72° 35°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 70° 22°/ 21°
0%

Day: Patchy fog this morning. Mostly sunny. Highs in the lower 90s. Calm winds, becoming northwest around 5 mph this afternoon.

Night: Partly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Effingham, IL

Today
Sunny
88°/ 62° 31°/ 17°
0%
Monday
Sunny
85°/ 68° 29°/ 20°
0%
Tuesday
Sunny
95°/ 68° 35°/ 20°
50%
Wednesday
Cloudy
92°33°
0%
Thursday
Cloudy
92°/ 68° 33°/ 20°
30%
Friday
Rain Showers
88°/ 62° 31°/ 17°
30%

Day: Mostly sunny. Highs in the upper 80s. Northwest winds 5 to 10 mph.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Less humid with lows in the lower 60s. Northeast winds 5 to 10 mph.

McLeansboro, IL

Today
Sunny
92°/ 65° 33°/ 18°
0%
Monday
Sunny
88°/ 68° 31°/ 20°
0%
Tuesday
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 70° 22°/ 21°
0%
Fri Night
Cloudy
65°18°
0%

Day: Mostly sunny. Highs in the lower 90s. Northwest winds 5 to 10 mph.

Night: Partly cloudy in the evening, then clearing. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Shelbyville, IL

Today
Sunny
85°/ 58° 29°/ 14°
20%
Monday
Sunny
82°/ 68° 28°/ 20°
0%
Tuesday
Sunny
95°/ 68° 35°/ 20°
60%
Wednesday
Rain Showers
92°/ 70° 33°/ 21°
50%
Thu-Thu Night
Rain Showers
92°33°
30%
Fri-Fri Night
Rain Showers
88°31°
30%

Day: Patchy fog this morning. Mostly sunny. Highs in the mid 80s. North winds 5 to 10 mph.

Night: Partly cloudy. A slight chance of showers in the evening. Less humid with lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Herrin, IL

Today
Sunny
92°/ 65° 33°/ 18°
0%
Monday
Sunny
88°/ 70° 31°/ 21°
0%
Tuesday
Sunny
95°/ 72° 35°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thu Night
Clear
72°22°
0%
Fri-Fri Night
Cloudy
92°33°
0%

Day: Mostly sunny. Highs in the lower 90s. Northwest winds around 5 mph.

Night: Partly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Taylorville, IL

Today
Sunny
82°/ 60° 28°/ 16°
20%
Monday
Sunny
85°/ 68° 29°/ 20°
0%
Tuesday
Rain Showers
95°/ 68° 35°/ 20°
60%
Wednesday
Rain Showers
92°/ 72° 33°/ 22°
50%
Thu-Thu Night
Rain Showers
92°33°
30%
Fri-Fri Night
Rain Showers
85°29°
30%

Day: Mostly sunny. Highs in the lower 80s. North winds 5 to 10 mph.

Night: Partly cloudy. A slight chance of showers in the evening. Less humid with lows around 60. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Perryville, MO

Today
Sunny
90°/ 65° 32°/ 18°
0%
Monday
Sunny
88°/ 70° 31°/ 21°
0%
Tuesday
Sunny
95°/ 72° 35°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 68° 22°/ 20°
0%

Day: Mostly sunny. Highs around 90. Northwest winds around 5 mph.

Night: Partly cloudy. Lows in the mid 60s. Northeast winds around 5 mph.

Harrisburg, IL

Today
Sunny
92°/ 65° 33°/ 18°
0%
Monday
Sunny
88°/ 68° 31°/ 20°
0%
Tuesday
Sunny
95°/ 72° 35°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 70° 22°/ 21°
0%
Fri Night
Cloudy
65°18°
0%

Day: Mostly sunny. Highs in the lower 90s. Calm winds, becoming northwest around 5 mph this afternoon.

Night: Partly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Carmi, IL

Today
Sunny
92°/ 65° 33°/ 18°
0%
Monday
Sunny
88°/ 68° 31°/ 20°
0%
Tuesday
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Clear
72°22°
0%
Thursday
Clear
72°/ 70° 22°/ 21°
0%

Day: Mostly sunny. Highs in the lower 90s. Northwest winds around 5 mph.

Night: Partly cloudy in the evening, then clearing. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Olney, IL

Today
Thunderstorms
90°/ 62° 32°/ 17°
20%
Monday
Sunny
85°/ 68° 29°/ 20°
0%
Tuesday
Sunny
98°/ 72° 37°/ 22°
0%
Wed Night
Cloudy
72°22°
0%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Rain Showers
90°32°
30%

Day: Mostly sunny. Patchy fog this morning. A slight chance of showers and thunderstorms this afternoon. Highs around 90. Northwest winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy. Less humid with lows in the lower 60s. Northeast winds 5 to 10 mph.

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