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      Flood Watch
      until 1:00 PM CDT
      Elev 221 ft, 41.764 °N 88.439 °W

      Sugar Grove, IL

      Sugar Grove Station72°
      Updated: 8:09 PM CDT on September 18, 2026 (GMT -5)
      3 minutes ago
      72°
      61°
      72
      Feels Like 72
      Cloudy
      N
      9
      Gusts 17 mph
      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 63°f
         86% Precip. / 0.59 in
        Cloudy skies this evening followed by thunderstorms late. Severe thunderstorms expected. Low 63F. Winds ESE at 5 to 10 mph. Chance of rain 90%.
        Tomorrow
        Sat 09/19
        High 74°f
         96% Precip. / 0.6 in
        Showers and thunderstorms. Severe thunderstorms expected. High 74F. Winds SSE at 5 to 10 mph. Chance of rain 100%.
        Tomorrow night
        Sat 09/19
        Low 64°f
         74% Precip. / 0.69 in
        Thunderstorms. Storms may contain strong gusty winds. Low 64F. Winds NE at 5 to 10 mph. Chance of rain 70%.
        Hourly Forecast
        Now
        69°
        9PM
        68°
        10PM
        68°
        11PM
        68°
        12AM
        66°
        1AM
        44%
        65°
        2AM
        87%
        65°
        3AM
        73%
        65°
        4AM
        47%
        65°
        5AM
        75%
        64°
        6AM
        76%
        64°
        6:38AM
        Sunrise
        7AM
        92%
        64°
        8AM
        96%
        65°
        9AM
        82%
        65°
        10AM
        77%
        65°
        11AM
        72%
        66°
        12PM
        47%
        68°
        1PM
        49%
        70°
        2PM
        54%
        72°
        3PM
        47%
        72°
        4PM
        61%
        73°
        5PM
        51%
        73°
        6PM
        60%
        72°
        6:56PM
        Sunset
        7PM
        74%
        72°
        8PM
        61%
        71°
        Precipitation
        96%
        Rain possible after 1 AM
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        28
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.12 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point59°F
        5. Humidity 72%
        6. Rainfall 0.02 in
        7. Snow Depth 0 in
         KARR Station History
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 75°F 91°F 1978
        4. Low 61°F 54°F 30°F 1916
        5. Rain/Snow Depth
        6. Precipitation 0.59 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 75°F 91°F
        4. Low 61°F 54°F 29°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:38 AM 6:56 PM
        3. Civil Twilight 6:10 AM 7:23 PM
        4. Nautical Twilight 5:37 AM 7:56PM
        5. Astronomical Twilight 5:04 AM 8:29 PM
        1. Length of Visible Light 13h 13m
        2. Length of Day 12h 17m
        3. Tomorrow will be 2 minutes 46 seconds shorter
        1. Moon 3:23 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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