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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 Station71°
      Updated: 11:00 PM CDT on September 18, 2026 (GMT -5)
      2 minutes ago
      73°
      61°
      71
      Feels Like 72
      Cloudy
      N
      9
      Gusts 17 mph
      Higher 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
         69% Precip. / 0.48 in
        Cloudy skies early then heavy thunderstorms developing overnight. Severe thunderstorms expected. Low 63F. Winds ESE at 5 to 10 mph. Chance of rain 70%.
        Tomorrow
        Sat 09/19
        High 75°f
         97% Precip. / 0.44 in
        Variable clouds with showers and scattered thunderstorms. Severe thunderstorms expected. High near 75F. Winds SSE at 5 to 10 mph. Chance of rain 100%.
        Tomorrow night
        Sat 09/19
        Low 64°f
         82% Precip. / 0.7 in
        Thunderstorms likely. Storms may contain strong gusty winds. Low 64F. Winds ENE at 5 to 10 mph. Chance of rain 80%.
        Hourly Forecast
        Now
        69°
        12AM
        68°
        1AM
        68°
        2AM
        67°
        3AM
        34%
        66°
        4AM
        66%
        66°
        5AM
        53%
        65°
        6AM
        86%
        65°
        6:38AM
        Sunrise
        7AM
        97%
        64°
        8AM
        89%
        65°
        9AM
        74%
        66°
        10AM
        70%
        66°
        11AM
        66%
        67°
        12PM
        41%
        69°
        1PM
        71°
        2PM
        72°
        3PM
        30%
        73°
        4PM
        44%
        75°
        5PM
        45%
        74°
        6PM
        51%
        73°
        6:56PM
        Sunset
        7PM
        68%
        73°
        8PM
        79%
        71°
        9PM
        59%
        70°
        10PM
        66%
        70°
        11PM
        53%
        69°
        Precipitation
        97%
        Thunderstorms possible after 3 AM
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        28
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.08 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point59°F
        5. Humidity 71%
        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 73°F 75°F 91°F 1978
        4. Low 61°F 54°F 30°F 1916
        5. Rain/Snow Depth
        6. Precipitation 0.48 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°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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