Denby, IL Weather Forecast & Current Conditions

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Denby Weather Map
UTC Time: 9/17/2026, 14:26
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Denby, IL Regional Weather

Expires:202609171500;;603733
ASUS43 KLOT 171406
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT THU SEP 17 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>061-171500-
CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLOUDY    71  71 100 NE13      30.26R FOG     TC  21   
BLOOMINGTON    MOSUNNY   79  73  82 W6        30.24R HX  82  TC  26   
DECATUR        SUNNY     83  70  64 SW10      30.23S HX  87  TC  28   
PEORIA         MOSUNNY   76  72  87 NE7       30.23R TC  24           
LACON*         CLOUDY    70  68  94 S3        30.25R THUNDER TC  21   
LINCOLN*       SUNNY     82  73  75 SW3       30.22S HX  87  TC  28   
SPRINGFIELD    SUNNY     82  71  69 SW10      30.21S HX  86  TC  28   
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

Denby, IL

Today
Thunderstorms
95°/ 70° 35°/ 21°
20%
Friday
Thunderstorms
92°/ 72° 33°/ 22°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
20%
Sunday
Thunderstorms
88°/ 65° 31°/ 18°
50%
Monday
Thunderstorms
82°/ 60° 28°/ 16°
60%
Tuesday
Rain Showers
78°/ 58° 26°/ 14°
20%

Day: Sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming west this afternoon. Chance of rain 20 percent. Heat index values up to 105.

Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows around 70. West winds around 5 mph, becoming northeast after midnight. Heat index values up to 101 early in the evening.

Montgomery, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
20%
Friday
Thunderstorms
92°/ 70° 33°/ 21°
40%
Saturday
Sunny
95°/ 72° 35°/ 22°
20%
Sun Night
Thunderstorms
65°18°
20%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
78°/ 58° 26°/ 14°
20%
Wednesday
Rain Showers
82°28°
20%

Day: Sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105.

Night: Partly cloudy. Lows in the lower 70s. West winds around 5 mph, becoming northeast around 5 mph after midnight. Heat index values up to 101 early in the evening.

Greene, IL

Today
Thunderstorms
95°/ 70° 35°/ 21°
20%
Friday
Thunderstorms
92°/ 72° 33°/ 22°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
20%
Sunday
Thunderstorms
88°/ 65° 31°/ 18°
50%
Monday
Thunderstorms
82°/ 60° 28°/ 16°
60%
Tuesday
Rain Showers
78°/ 58° 26°/ 14°
20%

Day: Sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming west this afternoon. Chance of rain 20 percent. Heat index values up to 105.

Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows around 70. West winds around 5 mph, becoming northeast after midnight. Heat index values up to 101 early in the evening.

Springfield, IL

Today
Sunny
95°/ 70° 35°/ 21°
20%
Friday
Thunderstorms
90°/ 70° 32°/ 21°
30%
Saturday
Partly Cloudy
95°/ 70° 35°/ 21°
50%
Sunday
Rain Showers
85°/ 65° 29°/ 18°
50%
Monday
Rain Showers
78°/ 58° 26°/ 14°
60%
Tuesday
Cloudy
78°26°
0%
Wednesday
Cloudy
78°26°
0%

Day: Mostly sunny. Hot with highs in the mid 90s. West winds around 5 mph. Heat index values up to 103.

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

Madison, IL

Today
Thunderstorms
98°/ 72° 37°/ 22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 72° 35°/ 22°
20%
Sun Night
Thunderstorms
68°20°
40%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
80°/ 60° 27°/ 16°
20%

Day: 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 108 this afternoon.

Night: Mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming north after midnight. Heat index values up to 103 early in the evening.

Jacksonville, IL

Today
Sunny
95°/ 68° 35°/ 20°
0%
Friday
Thunderstorms
90°/ 70° 32°/ 21°
20%
Saturday
Partly Cloudy
92°/ 68° 33°/ 20°
50%
Sunday
Rain Showers
85°/ 62° 29°/ 17°
50%
Monday
Rain Showers
78°/ 58° 26°/ 14°
60%
Tuesday
Cloudy
78°26°
0%
Wednesday
Cloudy
78°26°
0%

Day: Mostly sunny. Highs in the mid 90s. West winds around 5 mph. Heat index values up to 102.

Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Bond, IL

Today
Thunderstorms
98°/ 72° 37°/ 22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 68° 35°/ 20°
20%
Sun Night
Thunderstorms
68°20°
20%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
80°/ 58° 27°/ 14°
20%

Day: 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 106.

Night: Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming northeast around 5 mph after midnight. Heat index values up to 102 early in the evening.

Taylorville, IL

Today
Sunny
95°/ 70° 35°/ 21°
0%
Friday
Thunderstorms
92°/ 70° 33°/ 21°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
40%
Sunday
Rain Showers
88°/ 65° 31°/ 18°
50%
Monday
Thunderstorms
80°/ 60° 27°/ 16°
60%
Tuesday
Sunny
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
78°26°
0%

Day: Mostly sunny. Hot with highs in the mid 90s. West winds 5 to 10 mph. Heat index values up to 104.

Night: Partly cloudy. Humid with lows around 70. Northwest winds around 5 mph, becoming northeast around 5 mph after midnight.

Winchester, IL

Today
Sunny
95°/ 70° 35°/ 21°
0%
Friday
Thunderstorms
92°/ 72° 33°/ 22°
40%
Saturday
Partly Cloudy
92°/ 68° 33°/ 20°
40%
Sunday
Thunderstorms
85°/ 65° 29°/ 18°
60%
Monday
Rain Showers
78°/ 58° 26°/ 14°
60%
Tuesday
Cloudy
75°24°
0%
Wednesday
Cloudy
75°24°
0%

Day: Sunny, hot with highs in the mid 90s. West winds around 5 mph. Heat index values up to 105.

Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows around 70. Northeast winds around 5 mph.

Saint Charles, MO

Today
Thunderstorms
98°/ 72° 37°/ 22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 72° 35°/ 22°
20%
Sun Night
Thunderstorms
68°20°
40%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
80°/ 60° 27°/ 16°
20%

Day: 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 108 this afternoon.

Night: Mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming north after midnight. Heat index values up to 103 early in the evening.

Saint Louis, MO

Today
Thunderstorms
98°/ 72° 37°/ 22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 72° 35°/ 22°
20%
Sun Night
Thunderstorms
68°20°
40%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
80°/ 60° 27°/ 16°
20%

Day: 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 108 this afternoon.

Night: Mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming north after midnight. Heat index values up to 103 early in the evening.

Fayette, IL

Today
Thunderstorms
95°/ 72° 35°/ 22°
20%
Friday
Thunderstorms
92°/ 70° 33°/ 21°
40%
Saturday
Sunny
95°/ 72° 35°/ 22°
20%
Sun Night
Thunderstorms
65°18°
20%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
78°/ 58° 26°/ 14°
20%
Wednesday
Rain Showers
82°28°
20%

Day: Sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105.

Night: Partly cloudy. Lows in the lower 70s. West winds around 5 mph, becoming northeast around 5 mph after midnight. Heat index values up to 101 early in the evening.

Clinton, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Rain Showers
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sun-Sun Night
Rain Showers
92°33°
20%
Monday
Thunderstorms
88°/ 62° 31°/ 17°
50%
Tuesday
Rain Showers
82°/ 62° 28°/ 17°
20%
Wednesday
Rain Showers
82°28°
20%

Day: Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 106.

Night: Mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming northwest after midnight. Heat index values up to 103 early in the evening.

Shelbyville, IL

Today
Sunny
95°/ 70° 35°/ 21°
20%
Friday
Thunderstorms
92°/ 68° 33°/ 20°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
30%
Sun Night
Mostly Cloudy
65°18°
0%
Monday
Thunderstorms
82°/ 60° 28°/ 16°
50%
Tuesday
Sunny
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
78°26°
0%

Day: Sunny, hot with highs in the mid 90s. West winds 5 to 10 mph. Heat index values up to 102.

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

Beardstown, IL

Today
Sunny
92°/ 68° 33°/ 20°
20%
Friday
Thunderstorms
88°/ 70° 31°/ 21°
20%
Saturday
Partly Cloudy
92°/ 68° 33°/ 20°
50%
Sun Night
Thunderstorms
62°17°
60%
Monday
Rain Showers
75°/ 58° 24°/ 14°
60%
Tuesday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Sunny
75°24°
0%

Day: Mostly sunny. Highs in the lower 90s. West winds around 5 mph. Heat index values up to 102 this afternoon.

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

Montgomery, MO

Today
Sunny
95°/ 70° 35°/ 21°
0%
Friday
Sunny
92°/ 72° 33°/ 22°
0%
Saturday
Sunny
95°/ 70° 35°/ 21°
20%
Sunday
Thunderstorms
88°/ 65° 31°/ 18°
50%
Monday
Thunderstorms
78°/ 60° 26°/ 16°
60%
Tuesday
Rain Showers
75°/ 58° 24°/ 14°
20%

Day: Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 106.

Night: Mostly clear. Humid with lows around 70. Southwest winds around 5 mph, becoming north around 5 mph after midnight. Heat index values up to 102 early in the evening.

Saint Clair, IL

Today
Thunderstorms
98°/ 72° 37°/ 22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 72° 35°/ 22°
20%
Sun Night
Thunderstorms
68°20°
40%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
80°/ 60° 27°/ 16°
20%

Day: 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 108 this afternoon.

Night: Mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming north after midnight. Heat index values up to 103 early in the evening.

Saint Louis City, MO

Today
Thunderstorms
98°/ 72° 37°/ 22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 72° 35°/ 22°
20%
Sun Night
Thunderstorms
68°20°
40%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Rain Showers
80°/ 60° 27°/ 16°
20%

Day: 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 108 this afternoon.

Night: Mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph, becoming north after midnight. Heat index values up to 103 early in the evening.

Petersburg, IL

Today
Sunny
92°/ 68° 33°/ 20°
30%
Friday
Thunderstorms
88°/ 70° 31°/ 21°
30%
Saturday
Partly Cloudy
92°/ 68° 33°/ 20°
50%
Sunday
Rain Showers
85°/ 62° 29°/ 17°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
60%
Tuesday
Sunny
75°/ 55° 24°/ 13°
0%
Wednesday
Sunny
78°26°
0%

Day: Mostly sunny. Highs in the lower 90s. Northwest winds around 5 mph, becoming southwest this afternoon. Heat index values up to 100.

Night: Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 30 percent.

Adams, MO

Today
Sunny
92°/ 70° 33°/ 21°
0%
Friday
Thunderstorms
88°/ 72° 31°/ 22°
20%
Saturday
Partly Cloudy
92°/ 68° 33°/ 20°
60%
Sunday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Monday
Thunderstorms
72°/ 58° 22°/ 14°
70%
Tuesday
Rain Showers
72°/ 58° 22°/ 14°
20%

Day: Sunny. Highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming west this afternoon. Heat index values up to 103.

Night: Mostly clear in the evening, then becoming partly cloudy. Patchy fog after midnight. Humid with lows around 70. Northeast winds around 5 mph. Heat index values up to 100 early in the evening.

Names listed above may include county names.

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