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      Flood Watch
      until 1:00 PM CDT
      Elev 805 ft, 42.444 °N 88.235 °W

      Spring Grove, IL

      Spring Grove Station67°
      Updated: 11:20 PM CDT on September 18, 2026 (GMT -5)
      6 minutes ago
      72°
      57°
      67
      Feels Like 67
      Cloudy
      N
      7
      Similar 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
        Fri 09/18
        Low 61°f
         100% Precip. / 2.31 in
        Cloudy skies early followed by heavy thunderstorms late. Severe thunderstorms expected. Low 61F. Winds ESE at 5 to 10 mph. Chance of rain 100%. 2 to 3 inches of rain expected.
        Tomorrow
        Sat 09/19
        High 71°f
         94% Precip. / 0.75 in
        Rain and thunderstorms. Severe thunderstorms expected. High 71F. Winds SSE at 5 to 10 mph. Chance of rain 90%.
        Tomorrow night
        Sat 09/19
        Low 62°f
         82% Precip. / 0.49 in
        Thunderstorms likely in the evening. Then a chance of scattered thunderstorms later on. Low 62F. Winds NE at 5 to 10 mph. Chance of rain 80%. Locally heavy rainfall possible.
        Hourly Forecast
        Now
        67°
        12AM
        67°
        1AM
        66°
        2AM
        66°
        3AM
        97%
        64°
        4AM
        100%
        63°
        5AM
        100%
        63°
        6AM
        95%
        63°
        6:37AM
        Sunrise
        7AM
        95%
        62°
        8AM
        89%
        63°
        9AM
        71%
        64°
        10AM
        75%
        64°
        11AM
        64%
        65°
        12PM
        50%
        66°
        1PM
        67%
        68°
        2PM
        58%
        69°
        3PM
        64%
        69°
        4PM
        62%
        70°
        5PM
        69%
        70°
        6PM
        59%
        69°
        6:55PM
        Sunset
        7PM
        64%
        68°
        8PM
        65%
        67°
        9PM
        82%
        66°
        10PM
        75%
        66°
        11PM
        80%
        66°
        Precipitation
        100%
        Thunderstorms possible after 3 AM
        Pollen
        None
        Air Quality
        31
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.09 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point61°F
        5. Humidity 83%
        6. Rainfall 0.02 in
        7. Snow Depth 0 in
         KBUU Station History
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 73°F 97°F 1908
        4. Low 57°F 53°F 30°F 1901
        5. Rain/Snow Depth
        6. Precipitation 2.31 in - in -
        7. Snow 0 in - in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 73°F 95°F
        4. Low 57°F 53°F 31°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 8:30 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 3:25 PM 11:59 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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