Highland, IL Weather Forecast & Current Conditions

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Highland Weather Map
UTC Time: 9/15/2026, 15:03
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Highland, IL Regional Weather

Expires:202609151600;;495095
ASUS43 KLOT 151501
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 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.


ILZ079-100>102-151600-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          SUNNY     84  72  65 S10       30.07S HX  89  TC  29   
CAHOKIA*       SUNNY     85  72  65 VRB3      30.07S HX  91  TC  29   
SPARTA*        SUNNY     85  70  59 S8        30.11S HX  90  TC  30   
$$


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

Highland, IL

Today
Thunderstorms
98°/ 72° 37°/ 22°
70%
Wednesday
Thunderstorms
95°/ 75° 35°/ 24°
40%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Fri Night
Clear
72°22°
0%
Saturday
Sunny
95°/ 68° 35°/ 20°
30%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
40%

Day: Sunny. Isolated showers and thunderstorms this afternoon. Warmer with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107.

Night: Partly cloudy with showers and thunderstorms likely in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 70 percent. Heat index values up to 103 early in the evening.

Greenville, IL

Today
Thunderstorms
98°/ 72° 37°/ 22°
60%
Wednesday
Thunderstorms
95°/ 72° 35°/ 22°
40%
Thursday
Sunny
95°/ 72° 35°/ 22°
0%
Fri Night
Clear
72°22°
0%
Saturday
Sunny
92°/ 68° 33°/ 20°
20%
Sunday
Thunderstorms
85°29°
30%

Day: Sunny. Isolated showers and thunderstorms this afternoon. Warmer with highs in the upper 90s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 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 in the lower 70s. Southeast winds around 5 mph. Chance of rain 60 percent. Heat index values up to 102 early in the evening.

Centralia, IL

Today
Sunny
98°/ 72° 37°/ 22°
50%
Wednesday
Thunderstorms
95°/ 75° 35°/ 24°
40%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Saturday
Sunny
95°/ 68° 35°/ 20°
20%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
30%

Day: Sunny, warmer with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 108.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. South winds around 5 mph. Chance of rain 50 percent. Heat index values up to 104 early in the evening.

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. Isolated showers and thunderstorms this afternoon. Warmer with highs in the upper 90s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 105.

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.

ILZ102, IL

Today
Sunny
98°/ 72° 37°/ 22°
50%
Wednesday
Thunderstorms
95°/ 72° 35°/ 22°
20%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Fri Night
Clear
72°22°
0%
Saturday
Sunny
95°/ 68° 35°/ 20°
20%
Sun-Sun Night
Thunderstorms
85°29°
30%

Day: Sunny, warmer with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 107.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 50 percent. Heat index values up to 101 early in the evening.

Chester, IL

Today
Sunny
98°/ 72° 37°/ 22°
40%
Wednesday
Sunny
95°/ 72° 35°/ 22°
0%
Thursday
Sunny
95°/ 72° 35°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 68° 22°/ 20°
20%
Sun-Sun Night
Thunderstorms
85°29°
30%

Day: Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 108.

Night: Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. South winds around 5 mph. Chance of rain 40 percent. Heat index values up to 102 early in the evening.

Mount Vernon, IL

Today
Sunny
98°/ 72° 37°/ 22°
20%
Wednesday
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 70° 22°/ 21°
0%
Sun-Sun Night
Rain Showers
88°31°
30%

Day: Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph.

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

Pinckneyville, IL

Today
Sunny
98°/ 72° 37°/ 22°
20%
Wednesday
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 68° 22°/ 20°
0%
Sunday
Rain Showers
88°31°
30%

Day: Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph. Highest heat index readings heat index readings up to 106 this afternoon.

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

White Hall, IL

Today
Thunderstorms
98°/ 70° 37°/ 21°
50%
Wednesday
Thunderstorms
92°/ 72° 33°/ 22°
40%
Thursday
Sunny
95°/ 70° 35°/ 21°
0%
Friday
Thunderstorms
92°/ 70° 33°/ 21°
20%
Saturday
Thunderstorms
92°/ 68° 33°/ 20°
40%
Sun Night
Thunderstorms
58°14°
20%

Day: Sunny. Isolated showers and thunderstorms this afternoon. Warmer with highs in the upper 90s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 104.

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows around 70. Southeast winds around 5 mph, becoming northeast after midnight. Chance of rain 50 percent.

Taylorville, IL

Today
Thunderstorms
95°/ 70° 35°/ 21°
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. Warmer with highs in the mid 90s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. Heat index values up to 103.

Night: Mostly cloudy with a chance of showers and thunderstorms. Humid with lows around 70. Southeast winds around 5 mph, becoming northeast around 5 mph after midnight. Chance of rain 50 percent.

Shelbyville, 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°
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. 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. Lows around 70. South winds around 5 mph, becoming east 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. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 102 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. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 60 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 103 this afternoon.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the lower 70s. South 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: Sunny. A chance of showers and thunderstorms this afternoon. Warmer with 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 102.

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.

West Frankfort, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 70° 22°/ 21°
0%
Sun-Sun Night
Rain Showers
88°31°
30%

Day: Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph.

Carbondale, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 70° 22°/ 21°
0%
Sun-Sun Night
Rain Showers
88°31°
30%

Day: Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph. Highest heat index readings heat index readings up to 106 this afternoon.

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

Fairfield, IL

Today
Sunny
98°/ 72° 37°/ 22°
20%
Wednesday
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 70° 22°/ 21°
0%
Sun-Sun Night
Rain Showers
88°31°
30%

Day: Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph.

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

Jacksonville, IL

Today
Thunderstorms
95°/ 68° 35°/ 20°
50%
Wednesday
Thunderstorms
90°/ 72° 32°/ 22°
40%
Thursday
Sunny
92°/ 68° 33°/ 20°
0%
Friday
Cloudy
68°20°
0%
Saturday
Cloudy
68°/ 65° 20°/ 18°
50%
Sun Night
Mostly Cloudy
58°14°
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 102.

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.

Perryville, MO

Today
Sunny
95°/ 72° 35°/ 22°
0%
Wednesday
Sunny
95°/ 72° 35°/ 22°
0%
Thursday
Sunny
95°/ 72° 35°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 68° 22°/ 20°
0%
Sun-Sun Night
Rain Showers
85°29°
30%

Day: Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Highest heat index readings heat index readings up to 105 this afternoon.

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

McLeansboro, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Wednesday
Sunny
98°/ 72° 37°/ 22°
0%
Thursday
Sunny
98°/ 72° 37°/ 22°
0%
Friday
Clear
72°22°
0%
Saturday
Clear
72°/ 70° 22°/ 21°
0%
Sun-Sun Night
Rain Showers
90°32°
30%

Day: Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph.

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