My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev 680 ft, 39.829 °N 88.930 °W

      Decatur, IL

      Saint Mary's Station

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp8284102
      Low Temp666644
      Day Average Temp73.14--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation04.5-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point68.5--
      High72--
      Low65--
      Average68.5--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed9--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.36--
      Astronomy Day Length Rise Set
      Actual Time14h 1m6:00 AM8:02 PM
      Civil Twilight5:30 AM8:31 PM
      Nautical Twilight4:54 AM9:07 PM
      Astronomical Twilight4:15 AM9:46 PM
      Moon: Waning crescent12:05 AM3:54 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:54 AM 68 °F 67 °F 96 % CALM 0 mph - 29.38 in 0 in Partly Cloudy
      1:54 AM 68 °F 67 °F 96 % CALM 0 mph - 29.38 in 0 in Mostly Cloudy
      2:54 AM 68 °F 66 °F 93 % CALM 0 mph - 29.37 in 0 in Cloudy
      3:54 AM 66 °F 65 °F 96 % CALM 0 mph - 29.36 in 0 in Fair
      4:54 AM 67 °F 65 °F 93 % S 5 mph - 29.35 in 0 in Mostly Cloudy
      5:54 AM 69 °F 67 °F 93 % S 3 mph - 29.34 in 0 in Cloudy
      6:54 AM 69 °F 67 °F 93 % CALM 0 mph - 29.36 in 0 in Partly Cloudy
      7:54 AM 71 °F 69 °F 93 % CALM 0 mph - 29.36 in 0 in Mostly Cloudy
      8:54 AM 76 °F 69 °F 79 % S 5 mph - 29.36 in 0 in Fair
      9:54 AM 79 °F 71 °F 77 % SSW 9 mph - 29.35 in 0 in Fair
      10:18 AM 79 °F 71 °F 77 % SSW 7 mph - 29.35 in 0 in Mostly Cloudy
      10:54 AM 80 °F 71 °F 74 % CALM 0 mph - 29.35 in 0 in Mostly Cloudy
      11:54 AM 82 °F 72 °F 71 % CALM 0 mph - 29.34 in 0 in Cloudy
      12:29 PM 82 °F 72 °F 71 % SSW 7 mph - 29.34 in 0 in Partly Cloudy
      Our AppsAbout UsContactCareersWeather Data APIs
      PWS NetworkWundermapFeedback & Support
      Terms of UsePrivacy PolicyCookie NoticeAccessibility StatementAdChoicesData Vendors
      essentialaccessibility.com
      We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
      Review All Privacy and Ad Settings
      Choose how my information is shared
      Data Rights
      The Weather Company The Weather Channel Weather Underground Storm Radar
      © The Weather Company, LLC 2026
      Glossary