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      Flood Advisory
      until 9:00 AM CDT
      +1 more alert
      Elev 774 ft, 42.262 °N 88.209 °W

      Island Lake, IL

      Island Lake Station63°
      Updated: 4:31 AM CDT on September 19, 2026 (GMT -5)
      9 minutes ago
      73°
      61°
      63
      Feels Like 63
      Thunderstorm
      N
      13
      Gusts 22 mph
      Similar 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
        Sat 09/19
        High 73°f
         100% Precip. / 1.6 in
        Variable clouds with showers and scattered thunderstorms. Severe thunderstorms expected. High 73F. Winds SSE at 10 to 15 mph. Chance of rain 100%. 1 to 2 inches of rain expected.
        Tonight
        Sat 09/19
        Low 63°f
         82% Precip. / 1.12 in
        Thunderstorms - a few could contain very heavy rain, especially overnight. Low 63F. Winds NW at 5 to 10 mph. Chance of rain 80%. Rainfall may reach one inch. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/20
        High 66°f57°f
         52% Precip. / 0.12 in
        Overcast with rain showers at times. High 66F. Winds NE at 10 to 20 mph. Chance of rain 50%.
        Hourly Forecast
        Now
        63°
        5AM
        98%
        63°
        6AM
        90%
        62°
        6:37AM
        Sunrise
        7AM
        92%
        62°
        8AM
        74%
        64°
        9AM
        100%
        65°
        10AM
        100%
        66°
        11AM
        80%
        67°
        12PM
        65%
        68°
        1PM
        51%
        70°
        2PM
        58%
        71°
        3PM
        52%
        72°
        4PM
        46%
        72°
        5PM
        55%
        73°
        6PM
        78%
        72°
        6:55PM
        Sunset
        7PM
        71%
        71°
        8PM
        67%
        69°
        9PM
        70%
        69°
        10PM
        61%
        68°
        11PM
        49%
        68°
        12AM
        67%
        68°
        1AM
        73%
        68°
        2AM
        83%
        67°
        3AM
        81%
        67°
        4AM
        82%
        66°
        Precipitation
        100%
        Thunderstorms likely to continue
        Pollen
        None
        Air Quality
        29
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 4 miles
        3. Clouds Cloudy
        4. Dew Point61°F
        5. Humidity 94%
        6. Rainfall 0.33 in
        7. Snow Depth 0 in
         KPWK Station History
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 71°F 89°F 1985
        4. Low 61°F 52°F 38°F 2012
        5. Rain/Snow Depth
        6. Precipitation 2.72 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 71°F 88°F
        4. Low 61°F 52°F 33°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:37 AM 6:55 PM
        3. Civil Twilight 6:09 AM 7:23 PM
        4. Nautical Twilight 5:36 AM 7:56PM
        5. Astronomical Twilight 5:02 AM 8:29 PM
        1. Length of Visible Light 13h 14m
        2. Length of Day 12h 18m
        3. Tomorrow will be 2 minutes 50 seconds shorter
        1. Moon 3:24 PM -
        2. Waxing Gibbous59% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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