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      Extreme Heat Warning
      until 7:00 PM CDT
      Elev 201 ft, 40.532 °N 89.360 °W

      Mackinaw, IL

      Mackinaw Station96°
      Updated: 2:28 PM CDT on September 5, 2026 (GMT -5)
      5 minutes ago
      94°
      70°
      96
      Feels Like 118
      Partly Cloudy
      N
      9
      Lower temperature is expected today
      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 09/06
        High 93°f
         3% Precip. / 0 in
        Sunshine and clouds mixed. High 93F. Winds NNE at 10 to 15 mph.
        Tonight
        Sun 09/06
        Low 67°f
         18% Precip. / 0 in
        Partly cloudy. Low 67F. Winds NE at 5 to 10 mph.
        Tomorrow
        Mon 09/07
        High 84°f59°f
         9% Precip. / 0 in
        Partly cloudy. High 84F. Winds ENE at 10 to 15 mph.
        Hourly Forecast
        Now
        93°
        3PM
        93°
        4PM
        92°
        5PM
        90°
        6PM
        88°
        7PM
        85°
        7:22PM
        Sunset
        8PM
        81°
        9PM
        78°
        10PM
        76°
        11PM
        74°
        12AM
        72°
        1AM
        71°
        2AM
        70°
        3AM
        69°
        4AM
        69°
        5AM
        69°
        6AM
        68°
        6:29AM
        Sunrise
        7AM
        68°
        8AM
        70°
        9AM
        72°
        10AM
        75°
        11AM
        78°
        12PM
        80°
        1PM
        81°
        2PM
        82°
        Precipitation
        19%
        Pollen
        Grass Pollen
        Low
        Air Quality
        53
        Moderate
        UV Index
        6
        High
        Additional Conditions
        1. Pressure 29.88 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point76°F
        5. Humidity 59%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KPIA Station History
        Almanac for September 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 94°F 82°F 104°F 1899
        4. Low 70°F 60°F 45°F 1974
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.5 in -
        7. Snow 0 in 0 in -
        Almanac for September 6, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 82°F 101°F
        4. Low 70°F 60°F 41°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:28 AM 7:22 PM
        3. Civil Twilight 6:00 AM 7:50 PM
        4. Nautical Twilight 5:27 AM 8:23PM
        5. Astronomical Twilight 4:53 AM 8:57 PM
        1. Length of Visible Light 13h 49m
        2. Length of Day 12h 54m
        3. Tomorrow will be 2 minutes 37 seconds shorter
        1. Moon - 4:00 PM
        2. Waning Crescent40% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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