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      Elev 679 ft, 42.242 °N 87.854 °W

      Lake Forest, IL

      Downtown Station
      Updated: 1:53 AM CDT on August 21, 2026 (GMT -5)
      10 minutes ago
      76°
      60°
      58
      Feels Like 58
      Clear
      N
      0
      Similar temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Fri 08/21
      Low 59°f
      5% Precip. / 0 in
      Partly cloudy. Low 59F. Winds light and variable.
      Tomorrow
      Sat 08/22
      High 78°f
      44% Precip. / 0.02 in
      Cloudy early. Scattered thunderstorms developing later in the day. High 78F. Winds SSW at 5 to 10 mph. Chance of rain 40%.
      Tomorrow night
      Sat 08/22
      Low 63°f
      24% Precip. / 0 in
      Partly cloudy skies. Low 63F. Winds W at 5 to 10 mph.
      Hourly Forecast
      Now
      60°
      2AM
      61°
      3AM
      60°
      4AM
      61°
      5AM
      61°
      6AM
      61°
      6:05AM
      Sunrise
      7AM
      62°
      8AM
      66°
      9AM
      70°
      10AM
      72°
      11AM
      74°
      12PM
      75°
      1PM
      75°
      2PM
      76°
      3PM
      77°
      4PM
      75°
      5PM
      45%
      75°
      6PM
      34%
      74°
      7PM
      73°
      7:42PM
      Sunset
      8PM
      72°
      9PM
      70°
      10PM
      69°
      11PM
      68°
      12AM
      68°
      1AM
      68°
      Precipitation
      45%
      Pollen
      Grass Pollen
      Moderate
      Air Quality
      62
      Moderate
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 30.05 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point60°F
      5. Humidity 98%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KPWK Station History
      Almanac for August 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 76°F 80°F 100°F 1955
      4. Low 60°F 61°F 43°F 1950
      5. Rain/Snow Depth
      6. Precipitation 0 in - in -
      7. Snow 0 in - in -
      Almanac for August 22, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 77°F 79°F 93°F
      4. Low 60°F 61°F 50°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:05 AM 7:42 PM
      3. Civil Twilight 5:35 AM 8:12 PM
      4. Nautical Twilight 4:59 AM 8:48PM
      5. Astronomical Twilight 4:21 AM 9:26 PM
      1. Length of Visible Light 14h 36m
      2. Length of Day 13h 37m
      3. Tomorrow will be 2 minutes 37 seconds shorter
      1. Moon 3:52 PM -
      2. Waxing Gibbous66% 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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      Health
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