Hecker, IL Weather Forecast & Current Conditions

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Hecker Weather Map
UTC Time: 9/17/2026, 23:43
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Hecker, IL Regional Weather

Expires:202609180000;;626538
ASUS43 KLOT 172310
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 PM 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.


ILZ079-100>102-180000-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BELLEVILLE     SUNNY     95  73  48 S5        30.12S HX 105  TC  35   
CAHOKIA*       MOSUNNY   94  71  47 VRB5      30.13S HX 101  TC  34   
SPARTA*        MOSUNNY   94  66  39 SW3       30.16R HX  97  TC  35   
$$


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

Hecker, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Rain Showers
95°/ 68° 35°/ 20°
40%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
60%
Tuesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Lows in the lower 70s. South winds around 5 mph, becoming west after midnight. Chance of rain 20 percent.

Saint Clair, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
60%
Tuesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph, becoming northwest after midnight. Chance of rain 20 percent. Heat index values up to 101 early this evening.

Randolph, IL

Tonight
Clear
72°22°
0%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Sunny
95°/ 68° 35°/ 20°
30%
Monday
Thunderstorms
88°/ 62° 31°/ 17°
50%
Tuesday
Cloudy
80°27°
0%
Wednesday
Cloudy
80°27°
0%
Thursday
Cloudy
80°27°
0%

Night: Mostly clear. Lows in the lower 70s. Southwest winds around 5 mph.

Washington, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sun-Sun Night
Thunderstorms
95°35°
20%
Mon-Mon Night
Thunderstorms
85°29°
50%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent.

Saint Louis, MO

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
60%
Tuesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph, becoming northwest after midnight. Chance of rain 20 percent. Heat index values up to 101 early this evening.

Monroe, MO

Tonight
Thunderstorms
72°22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Rain Showers
95°/ 68° 35°/ 20°
40%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
60%
Tuesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Lows in the lower 70s. South winds around 5 mph, becoming west after midnight. Chance of rain 20 percent.

Clinton, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sun-Sun Night
Thunderstorms
95°35°
20%
Mon-Mon Night
Thunderstorms
85°29°
50%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent.

Sainte Genevieve, MO

Tonight
Clear
72°22°
0%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Sunny
95°/ 68° 35°/ 20°
30%
Monday
Thunderstorms
88°/ 62° 31°/ 17°
50%
Tuesday
Cloudy
80°27°
0%
Wednesday
Cloudy
80°27°
0%
Thursday
Cloudy
80°27°
0%

Night: Mostly clear. Lows in the lower 70s. Southwest winds around 5 mph.

Saint Louis City, MO

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
60%
Tuesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph, becoming northwest after midnight. Chance of rain 20 percent. Heat index values up to 101 early this evening.

Madison, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
60%
Tuesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph, becoming northwest after midnight. Chance of rain 20 percent. Heat index values up to 101 early this evening.

Pinckneyville, IL

Tonight
Clear
72°22°
0%
Friday
Thunderstorms
98°/ 72° 37°/ 22°
20%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sun-Sun Night
Cloudy
95°35°
0%
Monday
Thunderstorms
88°/ 62° 31°/ 17°
40%
Tuesday
Cloudy
82°28°
0%
Wednesday
Cloudy
82°28°
0%
Thursday
Cloudy
82°28°
0%

Night: Mostly clear. Lows in the lower 70s. Calm winds.

Saint Francois, MO

Tonight
Cloudy
72°22°
0%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
0%
Sunday
Sunny
95°/ 68° 35°/ 20°
20%
Monday
Thunderstorms
88°/ 62° 31°/ 17°
60%
Tuesday
Cloudy
80°27°
0%
Wednesday
Cloudy
80°27°
0%
Thursday
Cloudy
80°27°
0%

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

Perryville, MO

Tonight
Clear
72°22°
0%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sun-Sun Night
Cloudy
95°35°
0%
Monday
Thunderstorms
88°/ 62° 31°/ 17°
50%
Tuesday
Cloudy
80°27°
0%
Wednesday
Cloudy
80°27°
0%
Thursday
Cloudy
80°27°
0%

Night: Mostly clear. Lows in the lower 70s. Calm winds, becoming southwest around 5 mph after midnight.

Carbondale, IL

Tonight
Clear
72°22°
0%
Friday
Sunny
98°/ 72° 37°/ 22°
0%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sun-Sun Night
Cloudy
95°35°
0%
Monday
Thunderstorms
88°/ 65° 31°/ 18°
40%
Tuesday
Cloudy
80°27°
0%
Wednesday
Cloudy
80°27°
0%
Thursday
Cloudy
80°27°
0%

Night: Mostly clear. Lows in the lower 70s. Calm winds.

Bond, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
40%
Monday
Thunderstorms
82°/ 60° 28°/ 16°
50%
Tuesday
Rain Showers
75°/ 58° 24°/ 14°
20%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Partly cloudy with a slight chance of showers and thunderstorms this evening, then clear after midnight. Lows in the lower 70s. Southwest winds around 5 mph, becoming northwest around 5 mph after midnight. Chance of rain 20 percent.

Saint Charles, MO

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
60%
Tuesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph, becoming northwest after midnight. Chance of rain 20 percent. Heat index values up to 101 early this evening.

Washington, MO

Tonight
Thunderstorms
72°22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Rain Showers
92°/ 68° 33°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
60%
Tuesday
Rain Showers
75°/ 55° 24°/ 13°
20%
Wednesday
Cloudy
78°26°
0%
Thursday
Cloudy
78°26°
0%

Night: Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent.

Franklin, MO

Tonight
Thunderstorms
72°22°
20%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sunday
Rain Showers
92°/ 68° 33°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
60%
Tuesday
Rain Showers
75°/ 55° 24°/ 13°
20%
Wednesday
Cloudy
78°26°
0%
Thursday
Cloudy
78°26°
0%

Night: Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent.

Greene, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
92°/ 72° 33°/ 22°
0%
Saturday
Partly Cloudy
95°/ 70° 35°/ 21°
20%
Sun-Sun Night
Thunderstorms
90°32°
50%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
60%
Tuesday
Rain Showers
72°/ 55° 22°/ 13°
20%
Wednesday
Cloudy
78°26°
0%
Thursday
Cloudy
78°26°
0%

Night: Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Lows in the lower 70s. Northwest winds around 5 mph, becoming north around 5 mph after midnight. Chance of rain 20 percent.

Marion, IL

Tonight
Thunderstorms
72°22°
20%
Friday
Sunny
95°/ 72° 35°/ 22°
0%
Saturday
Sunny
95°/ 72° 35°/ 22°
0%
Sun-Sun Night
Thunderstorms
95°35°
20%
Mon-Mon Night
Thunderstorms
85°29°
50%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Cloudy
58°14°
0%
Thursday
Cloudy
58°14°
0%

Night: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent.

Names listed above may include county names.

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