Highland High School, IL Hourly Weather Updates

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Highland High School Weather Map
UTC Time: 8/15/2026, 06:24
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Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Highland High School, IL Regional Weather

Expires:202608150700;;214665
ASUS43 KLOT 150610
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 AM CDT SAT AUG 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>102-150700-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          PTCLDY    80  76  89 E8        30.01F HX  85  TC  27   
BELLEVILLE     CLEAR     80  79  96 S6        30.00F HX  89  TC  27   
CAHOKIA*       CLEAR     80  77  90 SE5       30.00F HX  87  TC  27   
$$


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

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Forecast Discussion (LSX)

Issued: 1056 PM CDT Fri Aug 14 2026

Key Messages

  • Dangerous heat and humidity will continue through Sunday for much of the area. The Extreme Heat Warning and Heat Advisory have both been extended through Sunday for most locations.
  • There are shower and thunderstorm chances late tonight and tomorrow morning in NE MO and west-central IL (20-50%). More chances arrive on Sunday morning as a cold front sweeps through the area (20-40%).


Aviation

/00Z TAFS THROUGH 06Z SUNDAY/... Issued at 1043 PM CDT Fri Aug 14 2026

Showers and thunderstorms w...