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      Elev 591 ft, 39.846 °N 88.947 °W

      Decatur, IL

      Mon, Oct 5, 2026
      Today
      Mon 10/05
      High 75°f
      2% Precip. / 0 in
      Sunny. High near 75F. Winds NE at 5 to 10 mph.
      Tonight
      Mon 10/05
      Low 46°f
      5% Precip. / 0 in
      Clear skies. Low 46F. Winds light and variable.
      Sunrise 6:56 AM
      Sunset 6:31 PM
      Moonrise 1:13 AM
      Moonset 4:04 PM
      Waning Crescent, 31% visible
      Hourly Forecast
      Now
      51°
      5AM
      50°
      6AM
      48°
      6:56AM
      Sunrise
      7AM
      48°
      8AM
      50°
      9AM
      57°
      10AM
      63°
      11AM
      66°
      12PM
      69°
      1PM
      72°
      2PM
      73°
      3PM
      74°
      4PM
      73°
      5PM
      72°
      6PM
      68°
      6:31PM
      Sunset
      7PM
      63°
      8PM
      61°
      9PM
      58°
      10PM
      55°
      11PM
      54°
      12AM
      53°
      1AM
      51°
      2AM
      50°
      3AM
      49°
      4AM
      48°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      5:00 am
      Clear
      50°F 50°F 2% 0in 0% 43°F 77% 2 mph N 30.25in
      6:00 am
      Clear
      48°F 48°F 2% 0in 0% 42°F 79% 2 mph NNE 30.26in
      7:00 am
      Sunny
      48°F 48°F 2% 0in 1% 42°F 79% 3 mph NNE 30.27in
      8:00 am
      Sunny
      50°F 49°F 2% 0in 1% 44°F 79% 4 mph NE 30.28in
      9:00 am
      Sunny
      57°F 56°F 1% 0in 0% 44°F 63% 5 mph NE 30.29in
      10:00 am
      Sunny
      63°F 63°F 0% 0in 0% 43°F 49% 5 mph ENE 30.29in
      11:00 am
      Sunny
      66°F 66°F 0% 0in 0% 41°F 40% 6 mph ENE 30.28in
      12:00 pm
      Sunny
      69°F 69°F 0% 0in 0% 39°F 33% 6 mph ENE 30.27in
      1:00 pm
      Sunny
      72°F 72°F 0% 0in 0% 39°F 30% 6 mph NE 30.25in
      2:00 pm
      Sunny
      73°F 73°F 0% 0in 0% 39°F 29% 6 mph ENE 30.22in
      3:00 pm
      Sunny
      74°F 74°F 0% 0in 0% 39°F 29% 6 mph NE 30.2in
      4:00 pm
      Sunny
      73°F 73°F 0% 0in 0% 39°F 29% 6 mph NE 30.19in
      5:00 pm
      Sunny
      72°F 72°F 0% 0in 0% 39°F 30% 6 mph NE 30.18in
      6:00 pm
      Sunny
      68°F 68°F 0% 0in 0% 41°F 37% 5 mph ENE 30.18in
      7:00 pm
      Clear
      63°F 63°F 0% 0in 0% 43°F 47% 4 mph ENE 30.18in
      8:00 pm
      Clear
      61°F 61°F 1% 0in 0% 43°F 53% 4 mph ENE 30.19in
      9:00 pm
      Clear
      58°F 58°F 1% 0in 0% 43°F 57% 4 mph E 30.2in
      10:00 pm
      Clear
      55°F 55°F 1% 0in 0% 43°F 63% 4 mph E 30.2in
      11:00 pm
      Clear
      54°F 53°F 2% 0in 0% 44°F 69% 4 mph E 30.2in
      Additional Conditions
      1. Pressure 30.25 in
      2. Visibility 10 miles
      3. Clouds Clear
      4. Dew Point43°F
      5. Humidity 75%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      KDEC Station History
      Almanac for October 5, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 75°F 71°F 91°F 1931
      4. Low 46°F 50°F 27°F 1989
      5. Rain/Snow Depth
      6. Precipitation 0 in 3.1 in -
      7. Snow 0 in 0 in -
      Almanac for October 6, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 78°F 70°F 91°F
      4. Low 46°F 49°F 25°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:56 AM 6:31 PM
      3. Civil Twilight 6:29 AM 6:58 PM
      4. Nautical Twilight 5:57 AM 7:29PM
      5. Astronomical Twilight 5:26 AM 8:01 PM
      1. Length of Visible Light 12h 29m
      2. Length of Day 11h 35m
      3. Tomorrow will be 2 minutes 35 seconds shorter
      1. Moon 1:13 AM 4:04 PM
      2. Waning Crescent31% of the Moon is Illuminated
      Oct 10
      New Moon
      Oct 18
      Waxing Half First Qtr
      Oct 25
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
      Loading nearby stations…
      Level Access
      Glossary