My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev 676 ft, 39.887 °N 88.977 °W

      Decatur, IL

      Sims Station67°
      Thu, Oct 1, 2026
      Thursday
      Thu 10/01
      High 83°f
      78% Precip. / 0.17 in
      Cloudy skies with a few showers later in the day. High 83F. Winds SW at 10 to 20 mph. Chance of rain 80%.
      Thursday night
      Thu 10/01
      Low 60°f
      77% Precip. / 0.46 in
      Rain likely. Low near 60F. Winds N at 10 to 15 mph. Chance of rain 80%. Rainfall near a half an inch. Locally heavy rainfall possible.
      Sunrise 6:52 AM
      Sunset 6:38 PM
      Moonrise 9:42 PM
      Moonset 12:46 PM
      Waning Gibbous, 66% visible
      Hourly Forecast
      12AM
      74°
      1AM
      73°
      2AM
      73°
      3AM
      73°
      4AM
      73°
      5AM
      73°
      6AM
      73°
      6:52AM
      Sunrise
      7AM
      73°
      8AM
      73°
      9AM
      75°
      10AM
      77°
      11AM
      80°
      12PM
      82°
      1PM
      82°
      2PM
      82°
      3PM
      32%
      81°
      4PM
      33%
      80°
      5PM
      31%
      78°
      6PM
      78%
      76°
      6:38PM
      Sunset
      7PM
      77%
      73°
      8PM
      75%
      71°
      9PM
      75%
      69°
      10PM
      72%
      68°
      11PM
      77%
      68°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Cloudy
      		 74°F 74°F 1% 0in 93% 59°F 61% 8 mph S 29.86in
      1:00 am
      Cloudy
      		 73°F 73°F 5% 0in 85% 59°F 62% 8 mph S 29.86in
      2:00 am
      Cloudy
      		 73°F 73°F 3% 0in 92% 60°F 64% 8 mph S 29.86in
      3:00 am
      Cloudy
      		 73°F 73°F 1% 0in 96% 60°F 64% 8 mph S 29.85in
      4:00 am
      Cloudy
      		 73°F 73°F 1% 0in 96% 60°F 64% 9 mph S 29.85in
      5:00 am
      Cloudy
      		 73°F 73°F 2% 0in 96% 60°F 64% 11 mph SSW 29.85in
      6:00 am
      Cloudy
      		 73°F 73°F 5% 0in 87% 60°F 64% 10 mph SSW 29.85in
      7:00 am
      Cloudy
      		 73°F 73°F 9% 0in 91% 60°F 65% 10 mph SSW 29.86in
      8:00 am
      Cloudy
      		 73°F 73°F 9% 0in 86% 62°F 68% 11 mph SSW 29.87in
      9:00 am
      Cloudy
      		 75°F 76°F 11% 0in 94% 62°F 65% 12 mph SSW 29.88in
      10:00 am
      Cloudy
      		 77°F 80°F 20% 0in 97% 63°F 62% 12 mph SSW 29.88in
      11:00 am
      Cloudy
      		 80°F 83°F 21% 0in 87% 64°F 57% 13 mph SW 29.88in
      12:00 pm
      Cloudy
      		 82°F 85°F 19% 0in 88% 64°F 55% 13 mph SW 29.87in
      1:00 pm
      Cloudy
      		 82°F 85°F 17% 0in 93% 65°F 56% 13 mph SW 29.86in
      2:00 pm
      Cloudy
      		 82°F 85°F 24% 0in 99% 65°F 56% 12 mph SW 29.85in
      3:00 pm
      Few Showers
      		 81°F 84°F 32% 0.01in 88% 64°F 57% 12 mph SW 29.84in
      4:00 pm
      Few Showers
      		 80°F 83°F 33% 0.01in 91% 65°F 60% 11 mph WSW 29.84in
      5:00 pm
      Few Showers
      		 78°F 81°F 31% 0.01in 92% 66°F 65% 10 mph W 29.84in
      6:00 pm
      Rain
      		 76°F 80°F 78% 0.13in 100% 67°F 72% 7 mph WNW 29.85in
      7:00 pm
      Rain
      		 73°F 75°F 77% 0.05in 100% 68°F 83% 7 mph NW 29.88in
      8:00 pm
      Rain
      		 71°F 73°F 75% 0.04in 100% 68°F 90% 6 mph NNW 29.9in
      9:00 pm
      Rain
      		 69°F 71°F 75% 0.03in 100% 67°F 94% 5 mph NNW 29.91in
      10:00 pm
      Rain
      		 68°F 70°F 72% 0.03in 100% 67°F 97% 5 mph N 29.93in
      11:00 pm
      Rain
      		 68°F 70°F 77% 0.04in 100% 67°F 98% 5 mph N 29.93in
      Additional Conditions
      1. Pressure 29.94 in
      2. Visibility 10 miles
      3. Clouds Clear
      4. Dew Point50°F
      5. Humidity 53%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KDEC Station History
      Almanac for September 29, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 85°F 73°F 100°F 1953
      4. Low 48°F 52°F 28°F 1899
      5. Rain/Snow Depth
      6. Precipitation 0 in 2.9 in -
      7. Snow 0 in 0 in -
      Almanac for September 30, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 83°F 73°F 94°F
      4. Low 64°F 52°F 20°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:50 AM 6:41 PM
      3. Civil Twilight 6:23 AM 7:08 PM
      4. Nautical Twilight 5:51 AM 7:39PM
      5. Astronomical Twilight 5:20 AM 8:11 PM
      1. Length of Visible Light 12h 44m
      2. Length of Day 11h 51m
      3. Tomorrow will be 2 minutes 36 seconds shorter
      1. Moon 8:05 PM 10:17 AM
      2. Waning Gibbous86% of the Moon is Illuminated
      Oct 3
      Waning Half Last Qtr
      Oct 10
      New Moon
      Oct 18
      Waxing Half First Qtr
      Oct 25
      Full Moon
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
      Loading nearby stations…
      Our AppsAbout UsContactCareers
      PWS NetworkWunderMap
      Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
      Level Access
      The Weather Company The Weather Channel Weather Underground Storm Radar
      © The Weather Company, LLC 2026
      Glossary