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      Severe Thunderstorm Watch
      until 10:00 PM CDT
      Elev 689 ft, 41.516 °N 87.666 °W

      Chicago Heights, IL

      Graymoor Station
      Updated: 7:07 PM CDT on August 21, 2026 (GMT -5)
      5 minutes ago
      81°
      56°
      74
      Feels Like 75
      Fair
      N
      5
      Same temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Sat 08/22
      Low 64°f
      34% Precip. / 0.01 in
      Widely scattered showers or a thunderstorm this evening. Then partly cloudy. Low 64F. Winds light and variable. Chance of rain 30%.
      Tomorrow
      Sun 08/23
      High 81°f
      16% Precip. / 0 in
      Partly cloudy skies. A stray shower or thunderstorm is possible. High 81F. Winds NW at 10 to 15 mph.
      Tomorrow night
      Sun 08/23
      Low 58°f
      6% Precip. / 0 in
      Clear. Low 58F. Winds NW at 5 to 10 mph.
      Hourly Forecast
      Now
      75°
      7:40PM
      Sunset
      8PM
      74°
      9PM
      71°
      10PM
      70°
      11PM
      69°
      12AM
      68°
      1AM
      67°
      2AM
      66°
      3AM
      65°
      4AM
      66°
      5AM
      65°
      6AM
      65°
      6:06AM
      Sunrise
      7AM
      65°
      8AM
      67°
      9AM
      69°
      10AM
      72°
      11AM
      75°
      12PM
      77°
      1PM
      78°
      2PM
      79°
      3PM
      79°
      4PM
      78°
      5PM
      78°
      6PM
      76°
      7PM
      75°
      Precipitation
      24%
      Pollen
      Grass Pollen
      Low
      Air Quality
      61
      Moderate
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 29.93 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point64°F
      5. Humidity 69%
      6. Rainfall 0.02 in
      7. Snow Depth 0 in
       KIGQ Station History
      Almanac for August 22, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 81°F 82°F 95°F 2003
      4. Low 56°F 62°F 50°F 2024
      5. Rain/Snow Depth
      6. Precipitation 0.01 in 4 in -
      7. Snow 0 in 0 in -
      Almanac for August 23, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 81°F 82°F 93°F
      4. Low 56°F 61°F 48°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:06 AM 7:39 PM
      3. Civil Twilight 5:37 AM 8:08 PM
      4. Nautical Twilight 5:02 AM 8:43PM
      5. Astronomical Twilight 4:24 AM 9:21 PM
      1. Length of Visible Light 14h 31m
      2. Length of Day 13h 32m
      3. Tomorrow will be 2 minutes 33 seconds shorter
      1. Moon 4:40 PM 12:20 AM
      2. Waxing Gibbous75% of the Moon is Illuminated
      Aug 27
      Full Moon
      Sep 4
      Waning Half Last Qtr
      Sep 10
      New Moon
      Sep 18
      Waxing Half First Qtr
      Precipitation
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