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      Elev 1207 ft, 43.104 °N 91.632 °W

      Ossian, IA

      Castalia Station83°
      Updated: 11:50 AM CDT on September 9, 2026 (GMT -5)
      2 minutes ago
      79°
      59°
      83
      Feels Like 88
      Sunny
      N
      5
      Same 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
        Today
        Thu 09/10
        High 79°f
         1% Precip. / 0 in
        Abundant sunshine. High 79F. Winds WNW at 5 to 10 mph.
        Tonight
        Thu 09/10
        Low 54°f
         6% Precip. / 0 in
        Mainly clear. Low 54F. Winds light and variable.
        Tomorrow
        Fri 09/11
        High 78°f55°f
         6% Precip. / 0 in
        Sunny. High 78F. Winds light and variable.
        Hourly Forecast
        Now
        77°
        12PM
        78°
        1PM
        79°
        2PM
        79°
        3PM
        79°
        4PM
        79°
        5PM
        78°
        6PM
        76°
        7PM
        74°
        7:27PM
        Sunset
        8PM
        70°
        9PM
        67°
        10PM
        65°
        11PM
        63°
        12AM
        62°
        1AM
        60°
        2AM
        59°
        3AM
        58°
        4AM
        56°
        5AM
        56°
        6AM
        55°
        6:41AM
        Sunrise
        7AM
        55°
        8AM
        59°
        9AM
        63°
        10AM
        68°
        11AM
        71°
        Precipitation
        6%
        Pollen
        None
        Air Quality
        44
        Good
        UV Index
        6
        High
        Additional Conditions
        1. Pressure 29.99 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point64°F
        5. Humidity 62%
        6. Rainfall 0.42 in
        7. Snow Depth 0 in
         KDEH Station History
        Almanac for September 9, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 79°F 79°F 100°F 1955
        4. Low 59°F 55°F 36°F 2008
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.4 in -
        7. Snow 0 in 0 in -
        Almanac for September 10, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 78°F 78°F 96°F
        4. Low 59°F 55°F 34°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:40 AM 7:27 PM
        3. Civil Twilight 6:11 AM 7:56 PM
        4. Nautical Twilight 5:37 AM 8:30PM
        5. Astronomical Twilight 5:01 AM 9:06 PM
        1. Length of Visible Light 13h 45m
        2. Length of Day 12h 47m
        3. Tomorrow will be 2 minutes 54 seconds shorter
        1. Moon 4:47 AM 6:47 PM
        2. Waning Crescent3% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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