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      Elev 771 ft, 42.363 °N 88.299 °W

      McHenry, IL

      McHenry Station69°
      Updated: 12:21 PM CDT on September 27, 2026 (GMT -5)
      4 minutes ago
      71°
      43°
      69
      Feels Like 69
      Sunny
      N
      3
      Similar temperature is expected today
      Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sun 09/27
        High 71°f
         2% Precip. / 0 in
        A mix of clouds and sun. High 71F. Winds light and variable.
        Tonight
        Sun 09/27
        Low 46°f
         13% Precip. / 0 in
        Some clouds. Low 46F. Winds light and variable.
        Tomorrow
        Mon 09/28
        High 74°f48°f
         8% Precip. / 0 in
        Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 74F. Winds light and variable.
        Hourly Forecast
        Now
        67°
        1PM
        69°
        2PM
        70°
        3PM
        70°
        4PM
        70°
        5PM
        68°
        6PM
        65°
        6:41PM
        Sunset
        7PM
        61°
        8PM
        58°
        9PM
        56°
        10PM
        53°
        11PM
        52°
        12AM
        51°
        1AM
        50°
        2AM
        49°
        3AM
        48°
        4AM
        47°
        5AM
        47°
        6AM
        47°
        6:47AM
        Sunrise
        7AM
        48°
        8AM
        52°
        9AM
        58°
        10AM
        63°
        11AM
        66°
        12PM
        69°
        Precipitation
        13%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        50
        Good
        UV Index
        5
        Moderate
        Additional Conditions
        1. Pressure 30.1 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point49°F
        5. Humidity 53%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KUGN Station History
        Almanac for September 27, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 69°F 86°F 1954
        4. Low 43°F 49°F 30°F 1942
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 28, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 69°F 90°F
        4. Low 43°F 49°F 28°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:46 AM 6:41 PM
        3. Civil Twilight 6:18 AM 7:09 PM
        4. Nautical Twilight 5:45 AM 7:42PM
        5. Astronomical Twilight 5:12 AM 8:15 PM
        1. Length of Visible Light 12h 51m
        2. Length of Day 11h 55m
        3. Tomorrow will be 2 minutes 51 seconds shorter
        1. Moon 6:54 PM 7:51 AM
        2. Waning Gibbous97% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
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