Sullivan, IL Weather Forecast & Current Conditions

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Sullivan Weather Map
UTC Time: 9/15/2026, 13:02
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Sullivan, IL Regional Weather

Expires:202609151400;;491408
ASUS43 KLOT 151301
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT TUE SEP 15 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.


ILZ028>032-037-038-041>044-048-051>054-059>061-151400-
CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BLOOMINGTON    MOSUNNY   69  62  78 S12       30.06R TC  21           
DECATUR        MOSUNNY   71  61  70 S9        30.08R TC  22           
PEORIA         PTSUNNY   71  62  73 NW7       30.06R TC  22           
SPRINGFIELD    SUNNY     75  64  68 S9        30.04R TC  24           
TAYLORVILLE    NOT AVBL                                               
$$


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

Sullivan, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
60%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
92°/ 68° 33°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 68° 20°/ 20°
40%
Sunday
Rain Showers
82°/ 58° 28°/ 14°
40%

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. South winds 10 to 15 mph, becoming southwest this afternoon. Chance of rain 50 percent. Heat index values up to 102.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the upper 60s. South winds around 5 mph, becoming north around 5 mph after midnight. Chance of rain 60 percent.

Shelbyville, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
60%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 68° 20°/ 20°
40%
Sunday
Rain Showers
82°/ 58° 28°/ 14°
40%

Day: Sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. South winds around 10 mph, becoming southwest this afternoon. Chance of rain 50 percent. Heat index values up to 103.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the upper 60s. South winds around 5 mph, becoming east after midnight. Chance of rain 60 percent.

Tuscola, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
60%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 68° 20°/ 20°
40%
Sun-Sun Night
Rain Showers
82°28°
40%

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. South winds 10 to 15 mph, becoming southwest this afternoon. Chance of rain 50 percent. Heat index values up to 103 this afternoon.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the upper 60s. South winds around 5 mph, becoming north after midnight. Chance of rain 60 percent.

Monticello, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
50%
Wednesday
Thunderstorms
88°/ 70° 31°/ 21°
50%
Thursday
Sunny
92°/ 68° 33°/ 20°
0%
Friday
Thunderstorms
88°/ 68° 31°/ 20°
30%
Sat Night-Sun
Rain Showers
65°18°
50%
Sun Night
Rain Showers
58°14°
40%

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. South winds around 15 mph, becoming southwest this afternoon. Chance of rain 50 percent. Heat index values up to 102 this afternoon.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 60s. East winds around 5 mph, becoming northeast after midnight. Chance of rain 50 percent.

Charleston, IL

Today
Thunderstorms
95°/ 70° 35°/ 21°
60%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 68° 20°/ 20°
30%
Sunday
Rain Showers
82°28°
40%

Day: Sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. Heat index values up to 102.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows around 70. South winds around 5 mph, becoming northeast around 5 mph after midnight. Chance of rain 60 percent.

Decatur, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
50%
Wednesday
Thunderstorms
90°/ 72° 32°/ 22°
50%
Thursday
Sunny
92°/ 68° 33°/ 20°
0%
Friday
Thunderstorms
88°/ 68° 31°/ 20°
30%
Sat Night-Sun
Rain Showers
68°20°
50%

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. South winds around 15 mph, becoming west this afternoon. Chance of rain 50 percent. Heat index values up to 102.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 60s. Southeast winds 5 to 10 mph, becoming northeast after midnight. Chance of rain 50 percent.

Greenup, IL

Today
Thunderstorms
95°/ 70° 35°/ 21°
50%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Fri Night
Cloudy
68°20°
0%
Sat-Sat Night
Cloudy
92°33°
0%
Sunday
Rain Showers
85°29°
40%

Day: Sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. Heat index values up to 102 this afternoon.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows around 70. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.

Taylorville, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
50%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
40%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 68° 20°/ 20°
50%

Day: Sunny. A chance of showers and thunderstorms this afternoon. Hot with highs in the mid 90s. South winds 10 to 15 mph, becoming southwest 5 to 10 mph this afternoon. Chance of rain 50 percent. Heat index values up to 104.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 60s. South winds around 5 mph, becoming northeast after midnight. Chance of rain 50 percent.

Champaign, IL

Today
Thunderstorms
92°/ 68° 33°/ 20°
60%
Wednesday
Thunderstorms
88°/ 70° 31°/ 21°
60%
Thursday
Sunny
90°/ 68° 32°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 65° 20°/ 18°
50%
Sun Night
Rain Showers
58°14°
50%

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the lower 90s. South winds 10 to 15 mph, becoming southwest this afternoon. Chance of rain 50 percent. Heat index values up to 103 this afternoon.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the upper 60s. Southeast winds around 5 mph, becoming north around 5 mph after midnight. Chance of rain 60 percent.

Effingham, IL

Today
Thunderstorms
95°/ 70° 35°/ 21°
60%
Wednesday
Thunderstorms
95°/ 72° 35°/ 22°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Cloudy
68°20°
0%
Sat Night
Cloudy
68°20°
0%
Sunday
Rain Showers
85°/ 62° 29°/ 17°
30%

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

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows around 70. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 60 percent.

Marshall, IL

Today
Thunderstorms
95°/ 70° 35°/ 21°
60%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Cloudy
68°20°
0%
Sat Night
Cloudy
68°20°
0%
Sunday
Rain Showers
85°/ 62° 29°/ 17°
40%

Day: Sunny. A slight chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Heat index values up to 101 this afternoon.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows around 70. South winds around 5 mph, becoming east around 5 mph after midnight. Chance of rain 60 percent.

Paris, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
60%
Wednesday
Thunderstorms
92°/ 70° 33°/ 21°
50%
Thursday
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 68° 20°/ 20°
30%
Sun-Sun Night
Rain Showers
82°28°
40%

Day: Sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the mid 90s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. Heat index values up to 101 this afternoon.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the upper 60s. South winds around 5 mph, becoming north after midnight. Chance of rain 60 percent.

Litchfield, IL

Today
Thunderstorms
98°/ 70° 37°/ 21°
70%
Wednesday
Thunderstorms
95°/ 72° 35°/ 22°
50%
Thursday
Sunny
95°/ 70° 35°/ 21°
0%
Friday
Thunderstorms
92°/ 68° 33°/ 20°
20%
Saturday
Sunny
92°/ 68° 33°/ 20°
20%
Sunday
Thunderstorms
85°/ 60° 29°/ 16°
40%

Day: Sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the upper 90s. South winds 10 to 15 mph. Chance of rain 50 percent. Heat index values up to 106.

Night: Partly cloudy with showers and thunderstorms likely in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows around 70. South winds around 5 mph, becoming east around 5 mph after midnight. Chance of rain 70 percent. Heat index values up to 100 early in the evening.

Clinton, IL

Today
Thunderstorms
92°/ 68° 33°/ 20°
70%
Wednesday
Thunderstorms
88°/ 70° 31°/ 21°
50%
Thursday
Sunny
88°/ 68° 31°/ 20°
0%
Friday
Thunderstorms
88°/ 68° 31°/ 20°
30%
Sat Night
Rain Showers
65°18°
60%
Sunday
Rain Showers
78°/ 58° 26°/ 14°
50%

Day: Mostly sunny. A slight chance of showers this morning, then a chance of showers and thunderstorms this afternoon. Warmer with highs in the lower 90s. South winds around 15 mph, becoming west this afternoon. Chance of rain 50 percent. Heat index values up to 100 this afternoon.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent.

Newton, IL

Today
Sunny
95°/ 72° 35°/ 22°
50%
Wednesday
Thunderstorms
95°/ 72° 35°/ 22°
40%
Thursday
Sunny
95°/ 70° 35°/ 21°
0%
Fri Night
Clear
68°20°
0%
Sat-Sat Night
Cloudy
92°33°
0%
Sunday
Rain Showers
85°/ 62° 29°/ 17°
30%

Day: Sunny, warmer with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 104 this afternoon.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.

Springfield, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
50%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
40%
Thursday
Sunny
92°/ 70° 33°/ 21°
0%
Friday
Cloudy
70°21°
0%
Saturday
Cloudy
70°/ 68° 21°/ 20°
50%
Sun Night
Mostly Cloudy
60°16°
0%

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the mid 90s. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph this afternoon. Chance of rain 50 percent. Heat index values up to 103.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 50 percent.

Lincoln, IL

Today
Thunderstorms
92°/ 68° 33°/ 20°
50%
Wednesday
Thunderstorms
88°/ 72° 31°/ 22°
50%
Thursday
Sunny
90°/ 68° 32°/ 20°
0%
Friday
Rain Showers
88°/ 68° 31°/ 20°
30%
Sat Night
Rain Showers
65°18°
60%
Sunday
Rain Showers
78°/ 58° 26°/ 14°
50%

Day: Mostly sunny. A slight chance of showers this morning, then a chance of showers and thunderstorms this afternoon. Highs in the lower 90s. South winds 10 to 15 mph, becoming west this afternoon. Chance of rain 50 percent. Heat index values up to 100.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 50 percent.

Danville, IL

Today
Thunderstorms
92°/ 68° 33°/ 20°
50%
Wednesday
Thunderstorms
88°/ 70° 31°/ 21°
60%
Thursday
Rain Showers
92°/ 68° 33°/ 20°
50%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 68° 20°/ 20°
50%
Sun Night
Rain Showers
58°14°
50%

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Much warmer with highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. Heat index values up to 102 this afternoon.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 60s. South winds around 5 mph, becoming north after midnight. Chance of rain 50 percent.

Bloomington, IL

Today
Thunderstorms
92°/ 65° 33°/ 18°
70%
Wednesday
Thunderstorms
85°/ 68° 29°/ 20°
50%
Thursday
Rain Showers
88°/ 65° 31°/ 18°
50%
Friday
Rain Showers
85°/ 68° 29°/ 20°
30%
Sat Night
Rain Showers
65°18°
60%
Sun-Sun Night
Rain Showers
78°26°
40%

Day: Mostly sunny. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. Warmer with highs in the lower 90s. Southwest winds around 15 mph, becoming west this afternoon. Chance of rain 50 percent. Heat index values up to 101 this afternoon.

Night: Showers likely. A chance of thunderstorms, mainly in the evening. Humid with lows in the mid 60s. North winds 5 to 10 mph. Chance of rain 70 percent.

Flora, IL

Today
Sunny
98°/ 72° 37°/ 22°
50%
Wednesday
Thunderstorms
95°/ 72° 35°/ 22°
40%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Fri Night
Clear
72°22°
0%
Sat-Sat Night
Cloudy
95°35°
0%
Sunday
Rain Showers
88°/ 62° 31°/ 17°
30%

Day: Sunny, warmer with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 105 this afternoon.

Night: Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.

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