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      Elev 201 ft, 39.843 °N 89.008 °W

      Decatur, IL

      Heather Hills Station64°
      Updated: 12:31 AM CDT on September 22, 2026 (GMT -5)
      8 minutes ago
      72°
      67°
      64
      Feels Like 64
      Cloudy
      N
      9
      Gusts 17 mph
      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
        Mon 09/21
        Low 57°f
         6% Precip. / 0 in
        Cloudy skies. Low 57F. Winds NE at 10 to 15 mph.
        Tomorrow
        Tue 09/22
        High 69°f
         15% Precip. / 0 in
        Cloudy. Slight chance of a rain shower. High 69F. Winds NE at 10 to 20 mph.
        Tomorrow night
        Tue 09/22
        Low 57°f
         8% Precip. / 0 in
        Partly cloudy skies during the evening will give way to cloudy skies overnight. Low 57F. Winds NNE at 10 to 15 mph.
        Hourly Forecast
        Now
        64°
        1AM
        63°
        2AM
        63°
        3AM
        61°
        4AM
        59°
        5AM
        59°
        6AM
        59°
        6:43AM
        Sunrise
        7AM
        58°
        8AM
        58°
        9AM
        60°
        10AM
        62°
        11AM
        63°
        12PM
        65°
        1PM
        67°
        2PM
        68°
        3PM
        68°
        4PM
        68°
        5PM
        67°
        6PM
        66°
        6:53PM
        Sunset
        7PM
        64°
        8PM
        63°
        9PM
        61°
        10PM
        60°
        11PM
        60°
        12AM
        59°
        Precipitation
        15%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        32
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.1 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point58°F
        5. Humidity 80%
        6. Rainfall 0.67 in
        7. Snow Depth 0 in
         KDEC Station History
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 76°F 93°F 2017
        4. Low 67°F 55°F 30°F 1983
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 23, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 68°F 75°F 91°F
        4. Low 67°F 54°F 29°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:43 AM 6:52 PM
        3. Civil Twilight 6:16 AM 7:19 PM
        4. Nautical Twilight 5:45 AM 7:51PM
        5. Astronomical Twilight 5:13 AM 8:23 PM
        1. Length of Visible Light 13h 3m
        2. Length of Day 12h 9m
        3. Tomorrow will be 2 minutes 36 seconds shorter
        1. Moon 5:01 PM 2:18 AM
        2. Waxing Gibbous85% 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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