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      Elev 139 ft, 38.248 °N 89.752 °W

      Marissa, IL

      Marissa Station66°
      Updated: 2:34 PM CDT on October 18, 2026 (GMT -5)
      8 minutes ago
      66°
      37°
      66
      Feels Like 66
      Sunny
      N
      4
      Higher temperature is expected today
      Wundermap

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       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 10/18
        High 66°f
         1% Precip. / 0 in
        Abundant sunshine. High 66F. Winds light and variable.
        Tonight
        Sun 10/18
        Low 39°f
         6% Precip. / 0 in
        Clear skies. Low 39F. Winds light and variable.
        Tomorrow
        Mon 10/19
        High 72°f43°f
         7% Precip. / 0 in
        Sunshine. High 72F. Winds light and variable.
        Hourly Forecast
        Now
        65°
        3PM
        65°
        4PM
        65°
        5PM
        65°
        6PM
        61°
        6:16PM
        Sunset
        7PM
        56°
        8PM
        52°
        9PM
        50°
        10PM
        48°
        11PM
        48°
        12AM
        46°
        1AM
        45°
        2AM
        43°
        3AM
        42°
        4AM
        41°
        5AM
        40°
        6AM
        40°
        7AM
        40°
        7:11AM
        Sunrise
        8AM
        42°
        9AM
        49°
        10AM
        56°
        11AM
        62°
        12PM
        66°
        1PM
        68°
        2PM
        70°
        Precipitation
        7%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        18
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 30.39 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point37°F
        5. Humidity 35%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSAR Station History
        Almanac for October 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 66°F 69°F 90°F 1953
        4. Low 37°F 44°F 24°F 1948
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.7 in -
        7. Snow 0 in 0 in -
        Almanac for October 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 69°F 90°F
        4. Low 39°F 43°F 27°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:10 AM 6:16 PM
        3. Civil Twilight 6:44 AM 6:43 PM
        4. Nautical Twilight 6:13 AM 7:14PM
        5. Astronomical Twilight 5:42 AM 7:44 PM
        1. Length of Visible Light 11h 59m
        2. Length of Day 11h 5m
        3. Tomorrow will be 2 minutes 21 seconds shorter
        1. Moon 2:28 PM -
        2. First Quarter51% of the Moon is Illuminated
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
        Nov 9
        New Moon
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