Cooperstown, IL Weather Forecast & Current Conditions

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Cooperstown Weather Map
UTC Time: 9/19/2026, 14:00
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Cooperstown, IL Regional Weather

Expires:202609191500;;711020
ASUS43 KLOT 191356
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT SAT SEP 19 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.


ILZ025>027-034>036-040-047-049-050-058-095>099-191500-
WEST-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$


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

Jacksonville, IL

Today
Mostly Cloudy
92°/ 68° 33°/ 20°
20%
Sunday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Monday
Rain Showers
70°/ 55° 21°/ 13°
70%
Tue Night
Mostly Cloudy
50°10°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%
Friday
Cloudy
72°22°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Highs in the lower 90s. Southwest winds around 5 mph.

Night: Mostly cloudy in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming southwest after midnight. Chance of rain 20 percent.

Beardstown, IL

Today
Mostly Cloudy
92°/ 68° 33°/ 20°
50%
Sunday
Thunderstorms
80°/ 60° 27°/ 16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
72°/ 55° 22°/ 13°
0%

Day: Mostly cloudy. Highs in the lower 90s. Southwest winds 5 to 10 mph.

Night: Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming west around 5 mph after midnight. Chance of rain 50 percent.

Rushville, IL

Today
Mostly Cloudy
90°/ 68° 32°/ 20°
50%
Sunday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
70°/ 55° 21°/ 13°
0%

Day: Mostly cloudy. Highs around 90. Southwest winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming west after midnight. Chance of rain 50 percent.

Winchester, IL

Today
Mostly Cloudy
95°/ 68° 35°/ 20°
30%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Monday
Rain Showers
70°/ 55° 21°/ 13°
70%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%
Friday
Cloudy
72°22°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 100.

Night: Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming southwest around 5 mph after midnight. Chance of rain 30 percent.

Canton, IL

Today
Thunderstorms
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
70°/ 55° 21°/ 13°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms this morning. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 20 percent.

Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Humid with lows in the upper 60s. South winds around 5 mph, becoming northwest after midnight. Chance of rain 70 percent.

Havana, IL

Today
Thunderstorms
88°/ 68° 31°/ 20°
50%
Sunday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
72°/ 55° 22°/ 13°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms this morning. Highs in the upper 80s. South winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming west after midnight. Chance of rain 50 percent.

Greene, IL

Today
Mostly Cloudy
95°/ 70° 35°/ 21°
0%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
70%
Monday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Tue Night
Mostly Cloudy
52°11°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°24°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. Southwest winds around 5 mph.

Petersburg, IL

Today
Thunderstorms
90°/ 68° 32°/ 20°
40%
Sunday
Thunderstorms
82°/ 60° 28°/ 16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°11°
0%
Friday
Cloudy
52°11°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms this morning. Highs around 90. South winds around 5 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming southwest after midnight. Chance of rain 40 percent.

Springfield, IL

Today
Mostly Cloudy
92°/ 70° 33°/ 21°
20%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Monday
Rain Showers
72°/ 55° 22°/ 13°
70%
Tuesday
Rain Showers
68°/ 52° 20°/ 11°
30%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%
Friday
Cloudy
72°22°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Highs in the lower 90s. Southwest winds around 5 mph.

Night: Mostly cloudy in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows around 70. South winds around 5 mph, becoming southwest after midnight. Chance of rain 20 percent.

Adams, MO

Today
Mostly Cloudy
92°/ 68° 33°/ 20°
50%
Sunday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Monday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Friday
Partly Cloudy
72°22°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming west after midnight. Chance of rain 50 percent.

Galesburg, IL

Today
Thunderstorms
85°/ 68° 29°/ 20°
90%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tuesday
Partly Cloudy
62°/ 52° 17°/ 11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
68°/ 55° 20°/ 13°
0%

Day: Cloudy. A chance of showers and thunderstorms, mainly this morning. Highs in the mid 80s. Southeast winds 5 to 10 mph, becoming south this afternoon. Chance of rain 50 percent.

Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers with thunderstorms likely after midnight. Humid with lows in the upper 60s. South winds around 5 mph, becoming northwest after midnight. Chance of rain 90 percent.

Lincoln, IL

Today
Thunderstorms
88°/ 68° 31°/ 20°
50%
Sunday
Thunderstorms
80°/ 60° 27°/ 16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
72°/ 55° 22°/ 13°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms this morning. Highs in the upper 80s. South winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming southwest after midnight. Chance of rain 50 percent.

Montgomery, MO

Today
Partly Cloudy
95°/ 70° 35°/ 21°
0%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
80%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
70%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°/ 55° 22°/ 13°
0%
Friday
Rain Showers
75°24°
20%

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

Night: Partly cloudy. Lows around 70. Southwest winds around 5 mph.

Pekin, IL

Today
Thunderstorms
85°/ 68° 29°/ 20°
50%
Sunday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
70°/ 55° 21°/ 13°
0%

Day: Mostly cloudy. A chance of showers and thunderstorms this morning. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 40 percent.

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

Peoria, IL

Today
Thunderstorms
85°/ 68° 29°/ 20°
70%
Sunday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night
Cloudy
52°11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Partly Cloudy
70°/ 55° 21°/ 13°
0%

Day: Cloudy. A chance of showers and thunderstorms, mainly this morning. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Humid with lows in the upper 60s. South winds around 5 mph, becoming northwest around 5 mph after midnight. Chance of rain 70 percent.

Montgomery, IL

Today
Rain Showers
95°/ 70° 35°/ 21°
20%
Sunday
Thunderstorms
90°/ 62° 32°/ 17°
70%
Monday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Tue Night
Mostly Cloudy
52°11°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°24°
0%

Day: Mostly sunny. A slight chance of showers this morning. Hot with highs in the mid 90s. Southwest winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. Southwest winds around 5 mph.

Taylorville, IL

Today
Mostly Cloudy
92°/ 70° 33°/ 21°
0%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Monday
Rain Showers
72°/ 55° 22°/ 13°
70%
Tue Night
Mostly Cloudy
55°13°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°24°
0%

Day: Mostly sunny this morning, then becoming mostly cloudy. Highs in the lower 90s. Southwest winds around 5 mph.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. South winds around 5 mph.

Audrain, MO

Today
Partly Cloudy
95°/ 68° 35°/ 20°
20%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
90%
Monday
Thunderstorms
70°/ 55° 21°/ 13°
70%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wed Night
Cloudy
52°11°
0%
Thu-Thu Night
Mostly Cloudy
72°22°
0%
Friday
Rain Showers
75°24°
20%

Day: Partly sunny. Highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southwest winds around 5 mph. Chance of rain 20 percent.

Madison, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 58° 24°/ 14°
0%

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

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Saint Charles, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 58° 24°/ 14°
0%

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

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Names listed above may include county names.

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