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      Flash Flood Warning
      until 8:00 AM CDT
      +1 more alert
      Elev 771 ft, 41.727 °N 89.333 °W

      Amboy, IL

      Amboy Station69°
      Updated: 3:20 AM CDT on September 20, 2026 (GMT -5)
      3 minutes ago
      71°
      63°
      69
      Feels Like 69
      Rain
      N
      3
      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
        Tonight
        Sat 09/19
        Low 65°f
         100% Precip. / 0.68 in
        Thunderstorms likely. Low near 65F. Winds NE at 5 to 10 mph. Chance of rain 100%. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/20
        High 67°f
         100% Precip. / 0.67 in
        Thunderstorms in the morning followed by occasional showers in the afternoon. High 67F. Winds NE at 10 to 20 mph. Chance of rain 100%.
        Tomorrow night
        Sun 09/20
        Low 58°f
         24% Precip. / 0 in
        Cloudy. Low 58F. Winds NE at 10 to 20 mph.
        Hourly Forecast
        Now
        69°
        4AM
        96%
        69°
        5AM
        100%
        68°
        6AM
        100%
        67°
        6:43AM
        Sunrise
        7AM
        100%
        66°
        8AM
        100%
        66°
        9AM
        94%
        67°
        10AM
        83%
        67°
        11AM
        85%
        67°
        12PM
        85%
        67°
        1PM
        70%
        66°
        2PM
        59%
        66°
        3PM
        47%
        66°
        4PM
        61%
        66°
        5PM
        54%
        65°
        6PM
        36%
        64°
        6:57PM
        Sunset
        7PM
        64°
        8PM
        62°
        9PM
        62°
        10PM
        62°
        11PM
        61°
        12AM
        61°
        1AM
        62°
        2AM
        61°
        3AM
        61°
        Precipitation
        100%
        Thunderstorms likely to continue
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        59
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.87 in
        2. Visibility 3 miles
        3. Clouds Cloudy
        4. Dew Point68°F
        5. Humidity 96%
        6. Rainfall 4.73 in
        7. Snow Depth 0 in
         KRPJ Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 74°F 91°F 2021
        4. Low 63°F 52°F 30°F 1956
        5. Rain/Snow Depth
        6. Precipitation 0.68 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 74°F 93°F
        4. Low 63°F 52°F 33°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:42 AM 6:57 PM
        3. Civil Twilight 6:15 AM 7:25 PM
        4. Nautical Twilight 5:42 AM 7:58PM
        5. Astronomical Twilight 5:09 AM 8:31 PM
        1. Length of Visible Light 13h 10m
        2. Length of Day 12h 15m
        3. Tomorrow will be 2 minutes 47 seconds shorter
        1. Moon 4:06 PM 12:07 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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