Billet, IL Weather Forecast & Current Conditions

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Billet Weather Map
UTC Time: 9/16/2026, 13:22
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Billet, IL Regional Weather

Expires:202609161400;;546881
ASUS43 KLOT 161310
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.


ILZ067-068-072-073-078-083-087-091-161400-
SOUTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLOUDY    76  72  87 CALM      30.26R TC  24           
FLORA*         MOSUNNY   75  73  94 CALM      30.26R TC  24           
FAIRFIELD*     CLOUDY    76  70  81 CALM      30.26R TC  25           
HARRISBURG*    CLOUDY    76  74  93 CALM      30.26R TC  25           
ROBINSON*      PTSUNNY   75  73  94 NW1       30.26R TC  24           
$$

ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY
$$

  

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

Billet, 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 morning. Hot with highs in the upper 90s. Southeast winds around 5 mph, becoming southwest this afternoon. 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.

Robinson, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
40%
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. A chance of showers with a slight chance of thunderstorms this morning. Hot with highs in the mid 90s. East winds around 5 mph, becoming south this afternoon. Chance of rain 40 percent. Heat index values up to 103.

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

Mount Carmel, IL

Today
Sunny
100°/ 75° 38°/ 24°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
95°/ 70° 35°/ 21°
0%
Saturday
Cloudy
95°35°
0%
Sun Night
Cloudy
95°35°
0%
Monday
Sunny
90°/ 65° 32°/ 18°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Mostly sunny. Hot with highs around 100. Southwest winds around 5 mph. Highest heat index readings heat index readings up to 105 this afternoon.

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

Olney, IL

Today
Thunderstorms
98°/ 72° 37°/ 22°
30%
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 chance of showers with a slight chance of thunderstorms this morning. Hot with highs in the upper 90s. East winds around 5 mph, becoming south this afternoon. Chance of rain 30 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.

Fort Branch, IN

Today
Sunny
98°/ 75° 37°/ 24°
0%
Thursday
Sunny
98°/ 75° 37°/ 24°
0%
Friday
Sunny
95°/ 70° 35°/ 21°
0%
Saturday
Cloudy
98°37°
0%
Sun Night
Cloudy
98°37°
0%
Mon-Mon Night
Rain Showers
92°33°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

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

Albion, IL

Today
Sunny
98°/ 75° 37°/ 24°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
95°/ 70° 35°/ 21°
0%
Saturday
Cloudy
95°35°
0%
Sun Night
Cloudy
95°35°
0%
Monday
Sunny
90°/ 65° 32°/ 18°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. Highest heat index readings heat index readings up to 106 this afternoon.

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

Newton, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
50%
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. A chance of showers with a slight chance of thunderstorms this morning. Hot with highs in the mid 90s. East winds around 5 mph, becoming south this afternoon. Chance of rain 50 percent. Heat index values up to 103.

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

Petersburg, IN

Today
Sunny
98°/ 75° 37°/ 24°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
92°/ 70° 33°/ 21°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sun-Sun Night
Cloudy
95°35°
0%
Mon-Mon Night
Rain Showers
90°32°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

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

Marshall, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
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. A chance of showers and thunderstorms this morning. Highs in the lower 90s. Northeast 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. Southeast winds around 5 mph, becoming south after midnight. Chance of rain 20 percent.

Fairfield, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
95°/ 70° 35°/ 21°
0%
Saturday
Cloudy
98°37°
0%
Sun Night
Cloudy
98°37°
0%
Monday
Sunny
90°/ 65° 32°/ 18°
30%
Tuesday
Sunny
85°29°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. Highest heat index readings heat index readings up to 105 this afternoon.

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

Flora, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
30%
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. A chance of showers with a slight chance of thunderstorms this morning. Hot with highs in the mid 90s. East winds around 5 mph, becoming south this afternoon. Chance of rain 30 percent. Heat index values up to 104.

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

Poseyville, IN

Today
Sunny
98°/ 75° 37°/ 24°
0%
Thursday
Sunny
98°/ 75° 37°/ 24°
0%
Friday
Sunny
98°/ 72° 37°/ 22°
0%
Saturday
Cloudy
98°37°
0%
Sun Night
Cloudy
98°37°
0%
Monday
Partly Cloudy
92°/ 65° 33°/ 18°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the mid 70s. South winds around 5 mph.

Greenup, IL

Today
Thunderstorms
92°/ 72° 33°/ 22°
50%
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. A chance of showers and thunderstorms this morning. 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.

Boonville, IN

Today
Sunny
98°/ 75° 37°/ 24°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
95°/ 70° 35°/ 21°
0%
Saturday
Cloudy
95°35°
0%
Sun Night
Cloudy
95°35°
0%
Monday
Partly Cloudy
92°/ 68° 33°/ 20°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

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

Carmi, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
98°/ 72° 37°/ 22°
0%
Saturday
Cloudy
98°37°
0%
Sun Night
Cloudy
98°37°
0%
Monday
Sunny
92°/ 65° 33°/ 18°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

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

Evansville, IN

Today
Sunny
98°/ 75° 37°/ 24°
0%
Thursday
Sunny
98°/ 75° 37°/ 24°
0%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Cloudy
98°37°
0%
Sun Night
Cloudy
98°37°
0%
Monday
Partly Cloudy
92°/ 68° 33°/ 20°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the mid 70s. South winds around 5 mph.

Effingham, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
50%
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 and thunderstorms this morning. Highs in the mid 90s. East winds around 5 mph, becoming south this afternoon. Chance of rain 50 percent. Heat index values up to 102.

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

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: Mostly cloudy with a chance of showers and thunderstorms this morning, then partly sunny 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.

McLeansboro, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
98°/ 72° 37°/ 22°
0%
Saturday
Cloudy
98°37°
0%
Sun Night
Cloudy
98°37°
0%
Monday
Sunny
92°/ 65° 33°/ 18°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

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

Rockport, IN

Today
Sunny
95°/ 72° 35°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Sunny
95°/ 68° 35°/ 20°
0%
Sat Night
Cloudy
72°22°
0%
Sun Night
Cloudy
72°22°
0%
Monday
Partly Cloudy
90°/ 65° 32°/ 18°
30%
Tuesday
Rain Showers
85°29°
30%

Day: Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph.

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

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