Chillicothe, IL Weather Forecast & Current Conditions

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Chillicothe Weather Map
UTC Time: 10/1/2026, 20:12
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Chillicothe, IL Regional Weather

Expires:202610012100;;373729
ASUS43 KLOT 012011
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 PM CDT THU OCT 01 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>061-012100-
CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        LGT RAIN  72  72 100 SW6       29.88S TC  22           
BLOOMINGTON    CLOUDY    76  69  79 NW8       29.88F TC  24           
DECATUR        PTSUNNY   87  65  47 SW21G28   29.86F HX  89  TC  31   
PEORIA         CLOUDY    73  70  90 SW7       29.86F TC  23           
LACON*         LGT RAIN  71  68  92 S3        29.85F TC  22           
SPRINGFIELD    PTSUNNY   85  64  49 SW12G20   29.85F HX  86  TC  29   
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

Chillicothe, IL

Afternoon
Thunderstorms
70°/ 52° 21°/ 11°
100%
Friday
Sunny
65°/ 45° 18°/ 7°
0%
Saturday
Sunny
68°/ 48° 20°/ 9°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature around 70. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Showers, mainly in the evening. Cooler with lows in the lower 50s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Lacon, IL

Afternoon
Thunderstorms
72°/ 52° 22°/ 11°
100%
Friday
Sunny
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers, mainly in the evening. Cooler with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Eureka, IL

Afternoon
Thunderstorms
75°/ 52° 24°/ 11°
100%
Friday
Sunny
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Cooler with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Toulon, IL

Afternoon
Thunderstorms
70°/ 52° 21°/ 11°
100%
Friday
Sunny
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 48° 20°/ 9°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
72°22°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature around 70. West winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers, mainly in the evening. Cooler. Less humid with lows in the lower 50s. North winds around 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Pekin, IL

Afternoon
Thunderstorms
75°/ 55° 24°/ 13°
100%
Friday
Sunny
68°/ 45° 20°/ 7°
0%
Saturday
Sunny
70°/ 48° 21°/ 9°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Cooler with lows in the mid 50s. North winds 10 to 15 mph. Chance of rain near 100 percent.

Hennepin, IL

Today
Thunderstorms
72°/ 52° 22°/ 11°
100%
Friday
Sunny
68°/ 42° 20°/ 6°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sun Night
Clear
45°7°
0%
Mon-Mon Night
Clear
68°20°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: A chance of showers late this morning, then showers with a slight chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Near steady temperature in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers, mainly in the evening. Cooler with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

Princeton, IL

Today
Thunderstorms
68°/ 52° 20°/ 11°
100%
Friday
Sunny
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sun Night
Clear
45°7°
0%
Mon-Mon Night
Clear
68°20°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers likely late this morning, then showers with a slight chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Near steady temperature in the upper 60s. Southwest winds 5 to 10 mph, becoming west this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely, mainly in the evening. Cooler. Less humid with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent.

Ottawa, IL

Afternoon
Thunderstorms
72°/ 52° 22°/ 11°
100%
Friday
Cloudy
68°/ 45° 20°/ 7°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sunday
Sunny
72°/ 45° 22°/ 7°
0%
Monday
Sunny
68°/ 42° 20°/ 6°
0%
Tuesday
Sunny
68°/ 48° 20°/ 9°
0%
Wednesday
Cloudy
75°24°
0%

Day: A chance of rain early in the afternoon. A slight chance of thunderstorms. Rain in the afternoon. Some thunderstorms may produce heavy rainfall. Rain may be heavy at times in the afternoon. Highs in the lower 70s. Southwest winds 5 to 10 mph. Chance of precipitation near 100 percent.

Night: Rain early in the evening, then a chance of rain late in the evening. A slight chance of rain after midnight. Less humid with lows in the lower 50s. North winds 10 to 15 mph, diminishing to 5 to 10 mph after midnight. Chance of precipitation near 100 percent.

Galesburg, IL

Afternoon
Thunderstorms
70°/ 52° 21°/ 11°
100%
Friday
Sunny
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 48° 20°/ 9°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
72°22°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature around 70. West winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Showers, mainly in the evening. Cooler. Less humid with lows in the lower 50s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Bloomington, IL

Afternoon
Thunderstorms
82°/ 55° 28°/ 13°
100%
Friday
Rain Showers
68°/ 42° 20°/ 6°
20%
Saturday
Sunny
70°/ 45° 21°/ 7°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Highs in the lower 80s. Temperature falling into the upper 70s. Southwest winds 10 to 15 mph. Chance of rain 90 percent.

Night: A slight chance of thunderstorms in the evening. Showers, cooler with lows in the mid 50s. North winds 10 to 15 mph. Chance of rain near 100 percent.

Geneseo, IL

Today
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Sunny
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sun Night
Clear
45°7°
0%
Mon-Mon Night
Clear
68°20°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers. A slight chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Near steady temperature in the upper 60s. Southwest winds around 10 mph, becoming northwest this afternoon. Chance of rain 90 percent.

Night: Mostly cloudy. Showers likely, mainly in the evening. Cooler. Less humid with lows in the lower 50s. North winds around 10 mph with gusts up to 25 mph. Chance of rain 70 percent.

Pontiac, IL

Afternoon
Thunderstorms
78°/ 55° 26°/ 13°
100%
Friday
Cloudy
68°/ 45° 20°/ 7°
0%
Saturday
Sunny
70°/ 45° 21°/ 7°
0%
Sunday
Sunny
75°/ 45° 24°/ 7°
0%
Monday
Sunny
68°/ 42° 20°/ 6°
0%
Tuesday
Sunny
68°/ 48° 20°/ 9°
0%
Wednesday
Cloudy
75°24°
0%

Day: A slight chance of rain early in the afternoon, then rain and a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Temperature falling into the lower 70s in the afternoon. Southwest winds 5 to 10 mph. Chance of precipitation near 100 percent.

Night: Rain with a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Lows in the mid 50s. North winds 10 to 15 mph. Chance of precipitation near 100 percent.

Canton, IL

Afternoon
Thunderstorms
72°/ 52° 22°/ 11°
100%
Friday
Sunny
65°/ 45° 18°/ 7°
0%
Saturday
Sunny
68°/ 48° 20°/ 9°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Night: Showers, mainly in the evening. Cooler with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Havana, IL

Afternoon
Thunderstorms
75°/ 55° 24°/ 13°
100%
Friday
Sunny
68°/ 45° 20°/ 7°
0%
Saturday
Sunny
70°/ 48° 21°/ 9°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature in the mid 70s. Temperature falling into the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Cooler with lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Lincoln, IL

Afternoon
Thunderstorms
78°/ 55° 26°/ 13°
100%
Friday
Rain Showers
68°/ 45° 20°/ 7°
40%
Saturday
Sunny
72°/ 48° 22°/ 9°
0%
Sun Night
Clear
45°7°
0%
Mon Night
Clear
45°7°
0%
Tue-Tue Night
Clear
70°21°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Near steady temperature in the upper 70s. Temperature falling into the upper 70s. Southwest winds 10 to 15 mph. Chance of rain 80 percent.

Night: Showers with a slight chance of thunderstorms. Cooler with lows in the mid 50s. North winds 10 to 15 mph. Chance of rain near 100 percent.

Sterling, IL

Today
Rain Showers
68°/ 50° 20°/ 10°
100%
Friday
Sunny
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sun Night
Clear
45°7°
0%
Mon-Mon Night
Clear
65°18°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers. Near steady temperature in the upper 60s. Southwest winds 5 to 10 mph, becoming northwest with gusts up to 20 mph this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A chance of showers in the evening. Cooler. Less humid with lows around 50. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Dixon, IL

Afternoon
Thunderstorms
72°/ 50° 22°/ 10°
100%
Friday
Cloudy
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sunday
Sunny
72°/ 42° 22°/ 6°
0%
Monday
Sunny
65°/ 42° 18°/ 6°
0%
Tuesday
Sunny
65°/ 48° 18°/ 9°
0%
Wednesday
Cloudy
72°22°
0%

Day: A slight chance of thunderstorms early in the afternoon. Rain. Some thunderstorms may produce heavy rainfall early in the afternoon. Highs in the lower 70s. Southwest winds around 10 mph, becoming northwest in the afternoon. Chance of precipitation near 100 percent.

Night: Cloudy. A chance of rain early in the evening, then a slight chance of rain late in the evening. Less humid with lows around 50. North winds 10 to 15 mph. Chance of precipitation 50 percent.

Clinton, IL

Afternoon
Thunderstorms
85°/ 55° 29°/ 13°
100%
Friday
Rain Showers
68°/ 45° 20°/ 7°
40%
Saturday
Sunny
72°/ 48° 22°/ 9°
0%
Sun Night
Clear
48°9°
0%
Mon-Mon Night
Clear
68°20°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers with a slight chance of thunderstorms. Highs in the mid 80s. Temperature falling into the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.

Night: Showers with a slight chance of thunderstorms. Cooler with lows in the mid 50s. Northwest winds around 10 mph, becoming north after midnight. Chance of rain near 100 percent.

Morris, IL

Afternoon
Thunderstorms
75°/ 55° 24°/ 13°
100%
Friday
Cloudy
68°/ 45° 20°/ 7°
0%
Saturday
Sunny
68°/ 45° 20°/ 7°
0%
Sunday
Sunny
72°/ 45° 22°/ 7°
0%
Monday
Sunny
68°/ 42° 20°/ 6°
0%
Tuesday
Sunny
68°/ 48° 20°/ 9°
0%
Wednesday
Cloudy
75°24°
0%

Day: A chance of rain early in the afternoon. A slight chance of thunderstorms. Rain in the afternoon. Some thunderstorms may produce heavy rainfall. Highs in the mid 70s. Southwest winds 5 to 10 mph. Chance of precipitation near 100 percent.

Night: Rain, mainly in the evening. Lows in the mid 50s. North winds 10 to 15 mph. Chance of precipitation near 100 percent.

Aledo, IL

Today
Rain Showers
70°/ 52° 21°/ 11°
100%
Friday
Sunny
65°/ 45° 18°/ 7°
0%
Saturday
Sunny
68°/ 48° 20°/ 9°
0%
Sun Night
Clear
48°9°
0%
Mon-Mon Night
Clear
68°20°
0%
Tue-Tue Night
Clear
68°20°
0%
Wednesday
Sunny
75°24°
0%

Day: Showers. Near steady temperature around 70. Southwest winds around 10 mph, becoming northwest this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. Showers likely in the evening. Cooler. Less humid with lows in the lower 50s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Names listed above may include county names.

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