Lerna, IL Weather Forecast & Current Conditions

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Lerna, IL Weather Maps

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Lerna Weather Map
UTC Time: 9/16/2026, 15:12
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Lerna, IL Regional Weather

Expires:202609161600;;549882
ASUS43 KLOT 161508
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT WED SEP 16 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.


ILZ033-039-045-046-055>057-062-063-161600-
EAST-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      PTSUNNY   75  73  93 MISG      30.27R TC  24           
RANTOUL*       PTSUNNY   73  73  99 SE6       30.27R TC  23           
MATTOON        MOSUNNY   81  73  76 VRB5      30.26R HX  86  TC  27   
PARIS*         PTSUNNY   77  73  86 CALM      30.28R TC  25           
$$


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

Lerna, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Partly Cloudy
92°/ 68° 33°/ 20°
30%
Friday
Sunny
88°/ 68° 31°/ 20°
0%
Sat Night
Thunderstorms
70°21°
50%
Sunday
Rain Showers
88°/ 65° 31°/ 18°
50%
Monday
Partly Cloudy
85°/ 62° 29°/ 17°
30%
Tuesday
Sunny
80°27°
0%

Day: Partly sunny. A chance of showers and thunderstorms early this morning, then a slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. East winds around 5 mph, becoming southwest this afternoon. Chance of rain 50 percent. Heat index values up to 100.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. East winds around 5 mph, becoming south around 5 mph after midnight. Chance of rain 20 percent.

Greenup, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
40%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Sunny
90°/ 68° 32°/ 20°
0%
Sat Night-Sun
Rain Showers
70°21°
50%
Sun Night
Cloudy
65°18°
0%
Monday
Partly Cloudy
85°/ 62° 29°/ 17°
30%
Tuesday
Sunny
82°28°
0%

Day: Partly sunny with a slight chance of thunderstorms. A chance of showers early this morning, then a slight chance of showers this afternoon. Highs in the lower 90s. Southeast winds around 5 mph, becoming southwest this afternoon. Chance of rain 40 percent. Heat index values up to 101.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 20 percent.

Sullivan, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Partly Cloudy
92°/ 68° 33°/ 20°
30%
Friday
Sunny
88°/ 68° 31°/ 20°
0%
Sat Night
Thunderstorms
68°20°
60%
Sunday
Rain Showers
88°/ 65° 31°/ 18°
50%
Monday
Rain Showers
82°/ 62° 28°/ 17°
40%
Tuesday
Sunny
78°26°
0%

Day: Partly sunny. A chance of showers and thunderstorms early this morning, then a slight chance of showers this afternoon. Highs in the lower 90s. East winds around 5 mph, becoming southwest this afternoon. Chance of rain 50 percent.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Chance of rain 20 percent.

Shelbyville, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Sunny
90°/ 68° 32°/ 20°
0%
Sat Night
Thunderstorms
68°20°
50%
Sunday
Rain Showers
88°/ 65° 31°/ 18°
50%
Monday
Partly Cloudy
85°/ 62° 29°/ 17°
30%
Tuesday
Sunny
80°27°
0%

Day: Partly sunny with a slight chance of thunderstorms. A chance of showers early this morning, then a slight chance of showers this afternoon. Highs in the lower 90s. East winds around 5 mph, becoming southwest this afternoon. Chance of rain 50 percent. Heat index values up to 101.

Night: Partly cloudy. Humid with lows in the lower 70s. South winds around 5 mph.

Marshall, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
40%
Thursday
Sunny
95°/ 68° 35°/ 20°
30%
Friday
Sunny
88°/ 68° 31°/ 20°
0%
Sat Night-Sun
Rain Showers
70°21°
50%
Sun Night-Mon
Cloudy
68°20°
0%
Mon Night
Rain Showers
62°17°
30%
Tuesday
Sunny
82°28°
0%

Day: Partly sunny with a slight chance of thunderstorms. A chance of showers early this morning, then a slight chance of showers this afternoon. Highs in the lower 90s. Southeast winds around 5 mph, becoming southwest this afternoon. Chance of rain 40 percent. Heat index values up to 100.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent.

Effingham, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
30%
Thursday
Sunny
95°/ 70° 35°/ 21°
0%
Friday
Sunny
92°/ 70° 33°/ 21°
0%
Saturday
Sunny
95°/ 70° 35°/ 21°
40%
Sunday
Rain Showers
90°/ 65° 32°/ 18°
40%
Monday
Partly Cloudy
85°/ 62° 29°/ 17°
30%
Tuesday
Sunny
82°28°
0%

Day: Partly sunny. A chance of showers early this morning, then a slight chance of showers and thunderstorms this afternoon. Highs in the mid 90s. Southeast winds around 5 mph, becoming southwest this afternoon. Chance of rain 30 percent. Heat index values up to 102.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 20 percent.

Tuscola, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Rain Showers
92°/ 68° 33°/ 20°
30%
Friday
Sunny
88°/ 68° 31°/ 20°
0%
Sat Night
Thunderstorms
68°20°
60%
Sunday
Rain Showers
85°/ 65° 29°/ 18°
50%
Monday
Rain Showers
82°/ 62° 28°/ 17°
30%
Tuesday
Sunny
80°27°
0%

Day: Partly sunny. A chance of showers and thunderstorms early this morning. Highs in the lower 90s. East winds around 5 mph, becoming west this afternoon. Chance of rain 50 percent. Heat index values up to 100.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Chance of rain 20 percent.

Newton, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
20%
Thursday
Sunny
95°/ 72° 35°/ 22°
0%
Friday
Sunny
92°/ 70° 33°/ 21°
0%
Sat Night-Sun
Rain Showers
72°22°
30%
Sun Night-Mon
Cloudy
68°20°
0%
Mon Night
Rain Showers
62°17°
30%
Tuesday
Sunny
82°28°
0%

Day: Partly sunny with a slight chance of showers. A slight chance of thunderstorms this afternoon. Hot with highs in the mid 90s. South winds around 5 mph, becoming southwest this afternoon. Chance of rain 20 percent. Heat index values up to 103.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 20 percent.

Paris, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Partly Cloudy
92°/ 68° 33°/ 20°
30%
Friday
Sunny
88°/ 68° 31°/ 20°
0%
Sat Night
Thunderstorms
68°20°
60%
Sunday
Rain Showers
88°/ 65° 31°/ 18°
50%
Monday
Rain Showers
85°/ 62° 29°/ 17°
30%
Tuesday
Sunny
80°27°
0%

Day: Partly sunny. A chance of showers and thunderstorms early this morning, then a slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. East winds around 5 mph, becoming west this afternoon. Chance of rain 50 percent.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Chance of rain 20 percent.

Monticello, IL

Today
Thunderstorms
88°/ 70° 31°/ 21°
60%
Thursday
Rain Showers
88°/ 68° 31°/ 20°
20%
Friday
Sunny
85°/ 68° 29°/ 20°
0%
Sat Night
Thunderstorms
68°20°
70%
Sunday
Rain Showers
85°29°
50%
Sun Night-Mon
Rain Showers
65°18°
40%
Mon Night-Tue
Cloudy
60°16°
0%

Day: Mostly cloudy with showers likely with a chance of thunderstorms early this morning, then partly sunny with a slight chance of showers this afternoon. Highs in the upper 80s. East winds around 5 mph, becoming west this afternoon. Chance of rain 60 percent.

Night: Partly cloudy with a slight chance of showers and thunderstorms. Humid with lows around 70. East winds around 5 mph, becoming southeast after midnight. Chance of rain 20 percent.

Robinson, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
20%
Thursday
Sunny
95°/ 72° 35°/ 22°
30%
Friday
Sunny
92°/ 70° 33°/ 21°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
30%
Sun Night-Mon
Cloudy
68°20°
0%
Mon Night
Rain Showers
65°18°
30%
Tuesday
Sunny
85°29°
0%

Day: Partly sunny with a slight chance of showers. A slight chance of thunderstorms this afternoon. Hot with highs in the mid 90s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 103.

Night: Partly cloudy. Humid with lows in the lower 70s. South winds around 5 mph.

Champaign, IL

Today
Thunderstorms
88°/ 70° 31°/ 21°
50%
Thursday
Thunderstorms
88°/ 65° 31°/ 18°
50%
Friday
Sunny
85°/ 68° 29°/ 20°
0%
Sat Night
Thunderstorms
68°20°
70%
Sunday
Rain Showers
82°28°
50%
Sun Night-Mon
Rain Showers
65°18°
40%
Mon Night-Tue
Cloudy
62°17°
0%

Day: Mostly cloudy with a chance of showers and thunderstorms early this morning, then partly sunny with a slight chance of showers this afternoon. Highs in the upper 80s. East winds around 5 mph, becoming west this afternoon. Chance of rain 50 percent.

Night: Partly cloudy with a slight chance of showers and thunderstorms. Humid with lows around 70. Northeast winds around 5 mph, becoming southeast after midnight. Chance of rain 20 percent.

Fayette, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 70° 35°/ 21°
20%
Friday
Thunderstorms
92°/ 70° 33°/ 21°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
50%
Sunday
Thunderstorms
90°/ 65° 32°/ 18°
50%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
30%
Tuesday
Rain Showers
82°28°
20%

Day: Partly sunny. A chance of showers and thunderstorms, mainly this morning. Highs in the lower 90s. East winds around 5 mph, becoming west around 5 mph this afternoon. Chance of rain 50 percent. Heat index values up to 102.

Night: Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Chance of rain 30 percent. Heat index values up to 100 early in the evening.

Decatur, IL

Today
Thunderstorms
90°/ 72° 32°/ 22°
50%
Thursday
Rain Showers
90°/ 68° 32°/ 20°
20%
Friday
Sunny
88°/ 68° 31°/ 20°
0%
Sat Night
Thunderstorms
68°20°
70%
Sunday
Rain Showers
85°29°
50%
Sun Night-Mon
Rain Showers
65°18°
40%
Mon Night
Rain Showers
62°17°
30%
Tuesday
Sunny
78°26°
0%

Day: Mostly cloudy early this morning, then becoming partly sunny. A chance of showers and thunderstorms early this morning, then a slight chance of showers this afternoon. Highs around 90. East winds around 5 mph, becoming southwest this afternoon. Chance of rain 50 percent.

Night: Partly cloudy. Humid with lows in the lower 70s. East winds around 5 mph, becoming south after midnight.

Flora, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
20%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
92°/ 70° 33°/ 21°
0%
Saturday
Cloudy
70°21°
0%
Sun Night
Cloudy
70°21°
0%
Monday
Partly Cloudy
88°/ 62° 31°/ 17°
30%
Tuesday
Sunny
85°29°
0%

Day: Mostly sunny with a slight chance of showers. A slight chance of thunderstorms this afternoon. Hot with highs in the mid 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 104.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 20 percent.

Danville, IL

Today
Thunderstorms
88°/ 70° 31°/ 21°
60%
Thursday
Thunderstorms
88°/ 65° 31°/ 18°
50%
Friday
Sunny
85°/ 65° 29°/ 18°
0%
Sat Night
Thunderstorms
68°20°
70%
Sunday
Rain Showers
82°28°
50%
Sun Night-Mon
Rain Showers
65°18°
40%
Mon Night
Mostly Cloudy
62°17°
0%
Tuesday
Sunny
78°26°
0%

Day: Mostly cloudy with showers likely with a chance of thunderstorms early this morning, then partly sunny with a slight chance of showers this afternoon. Highs in the upper 80s. East winds around 5 mph, becoming west this afternoon. Chance of rain 60 percent.

Night: Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Humid with lows around 70. Northeast winds around 5 mph, becoming southeast after midnight. Chance of rain 30 percent.

Olney, IL

Today
Thunderstorms
98°/ 72° 37°/ 22°
20%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
92°/ 72° 33°/ 22°
0%
Saturday
Cloudy
95°35°
0%
Sun Night
Cloudy
95°35°
0%
Monday
Sunny
88°/ 65° 31°/ 18°
30%
Tuesday
Sunny
85°29°
0%

Day: Mostly sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs in the upper 90s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 104.

Night: Partly cloudy in the evening, then clearing. Lows in the lower 70s. South winds around 5 mph.

Taylorville, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Rain Showers
92°/ 68° 33°/ 20°
20%
Friday
Sunny
92°/ 70° 33°/ 21°
0%
Sat Night
Thunderstorms
68°20°
60%
Sunday
Rain Showers
88°31°
50%
Sun Night-Mon
Rain Showers
65°18°
40%
Mon Night
Rain Showers
62°17°
30%
Tuesday
Sunny
80°27°
0%

Day: Mostly cloudy early this morning, then becoming partly sunny. A chance of showers with a slight chance of thunderstorms early this morning, then a slight chance of showers this afternoon. Highs in the lower 90s. East winds around 5 mph, becoming west this afternoon. Chance of rain 50 percent. Heat index values up to 102 this afternoon.

Night: Partly cloudy. Humid with lows in the lower 70s. East winds around 5 mph, becoming south after midnight.

Lawrenceville, IL

Today
Thunderstorms
98°/ 75° 37°/ 24°
20%
Thursday
Sunny
98°/ 72° 37°/ 22°
30%
Friday
Sunny
92°/ 70° 33°/ 21°
0%
Saturday
Sunny
98°/ 72° 37°/ 22°
30%
Sun-Sun Night
Cloudy
95°35°
0%
Monday
Sunny
88°/ 65° 31°/ 18°
30%
Tuesday
Sunny
85°29°
0%

Day: Mostly sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 103.

Night: Partly cloudy in the evening, then clearing. Lows in the mid 70s. South winds around 5 mph.

Montgomery, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 70° 35°/ 21°
20%
Friday
Thunderstorms
92°/ 70° 33°/ 21°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
50%
Sunday
Thunderstorms
90°/ 65° 32°/ 18°
50%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
30%
Tuesday
Rain Showers
82°28°
20%

Day: Partly sunny. A chance of showers and thunderstorms, mainly this morning. Highs in the lower 90s. East winds around 5 mph, becoming west around 5 mph this afternoon. Chance of rain 50 percent. Heat index values up to 102.

Night: Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Chance of rain 30 percent. Heat index values up to 100 early in the evening.

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