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      Elev 198 ft, 40.363 °N 91.353 °W

      Elvaston, IL

      Hamilton Station76°
      Updated: 8:53 PM CDT on September 19, 2026 (GMT -5)
      9 minutes ago
      85°
      72°
      76
      Feels Like 77
      Partly Cloudy
      N
      6
      Lower temperature is expected tomorrow
      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
        Tonight
        Sun 09/20
        Low 70°f
         67% Precip. / 0.11 in
        Partial cloudiness early, with scattered showers and thunderstorms overnight. Low around 70F. Winds WNW at 5 to 10 mph. Chance of rain 70%.
        Tomorrow
        Mon 09/21
        High 75°f
         52% Precip. / 0.05 in
        Scattered thunderstorms in the morning, then cloudy skies late. High around 75F. Winds N at 10 to 15 mph. Chance of rain 50%.
        Tomorrow night
        Mon 09/21
        Low 63°f
         49% Precip. / 0.32 in
        Considerable cloudiness with occasional rain showers. Low 63F. Winds ENE at 10 to 15 mph. Chance of rain 50%.
        Hourly Forecast
        Now
        77°
        9PM
        76°
        10PM
        75°
        11PM
        74°
        12AM
        74°
        1AM
        73°
        2AM
        73°
        3AM
        72°
        4AM
        37%
        71°
        5AM
        67%
        71°
        6AM
        58%
        71°
        6:50AM
        Sunrise
        7AM
        53%
        71°
        8AM
        49%
        71°
        9AM
        71°
        10AM
        72°
        11AM
        73°
        12PM
        74°
        1PM
        75°
        2PM
        75°
        3PM
        74°
        4PM
        74°
        5PM
        73°
        6PM
        71°
        7PM
        70°
        7:05PM
        Sunset
        8PM
        41%
        67°
        Precipitation
        67%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        40
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.81 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point72°F
        5. Humidity 87%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KEOK Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 85°F 76°F 93°F 1940
        4. Low 72°F 55°F 38°F 1991
        5. Rain/Snow Depth
        6. Precipitation 0.11 in - in -
        7. Snow 0 in - in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°F 76°F 93°F
        4. Low 72°F 54°F 37°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:50 AM 7:05 PM
        3. Civil Twilight 6:23 AM 7:32 PM
        4. Nautical Twilight 5:51 AM 8:04PM
        5. Astronomical Twilight 5:18 AM 8:36 PM
        1. Length of Visible Light 13h 8m
        2. Length of Day 12h 14m
        3. Tomorrow will be 2 minutes 40 seconds shorter
        1. Moon 4:09 PM 12:20 AM
        2. Waxing Gibbous68% 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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