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      Dense Fog Advisory
      until 9:00 AM CDT
      Elev 551 ft, 39.853 °N 89.543 °W

      Riverton, IL

      Riverton Station69°
      Updated: 2:27 AM CDT on September 11, 2026 (GMT -5)
      6 minutes ago
      78°
      68°
      69
      Feels Like 69
      Mostly Cloudy
      N
      2
      Higher 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
        Tonight
        Fri 09/11
        Low 63°f
         15% Precip. / 0 in
        Cloudy skies. Areas of patchy fog. Low 63F. Winds light and variable.
        Tomorrow
        Sat 09/12
        High 82°f
         15% Precip. / 0 in
        Areas of patchy fog early. Cloudy. High 82F. Winds light and variable.
        Tomorrow night
        Sat 09/12
        Low 65°f
         11% Precip. / 0 in
        Partly cloudy. Low near 65F. Winds light and variable.
        Hourly Forecast
        Now
        69°
        3AM
        69°
        4AM
        68°
        5AM
        67°
        6AM
        15%
        64°
        6:35AM
        Sunrise
        7AM
        64°
        8AM
        66°
        9AM
        69°
        10AM
        71°
        11AM
        74°
        12PM
        77°
        1PM
        79°
        2PM
        80°
        3PM
        80°
        4PM
        81°
        5PM
        81°
        6PM
        80°
        7PM
        77°
        7:13PM
        Sunset
        8PM
        74°
        9PM
        72°
        10PM
        71°
        11PM
        70°
        12AM
        69°
        1AM
        68°
        2AM
        68°
        Precipitation
        15%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        27
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 6 miles
        3. Clouds Mostly Cloudy
        4. Dew Point66°F
        5. Humidity 90%
        6. Rainfall 0.62 in
        7. Snow Depth 0 in
         KSPI Station History
        Almanac for September 11, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 78°F 82°F 98°F 1936
        4. Low 68°F 58°F 39°F 1917
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.4 in -
        7. Snow 0 in 0 in -
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 82°F 96°F
        4. Low 68°F 57°F 39°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:35 AM 7:13 PM
        3. Civil Twilight 6:08 AM 7:40 PM
        4. Nautical Twilight 5:36 AM 8:12PM
        5. Astronomical Twilight 5:02 AM 8:45 PM
        1. Length of Visible Light 13h 32m
        2. Length of Day 12h 37m
        3. Tomorrow will be 2 minutes 34 seconds shorter
        1. Moon 7:06 AM 7:21 PM
        2. Waxing Crescent0% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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