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      Flood Watch
      until 1:00 PM CDT
      Elev 1070 ft, 42.871 °N 92.209 °W

      Sumner, IA

      Sumner Station61°
      Updated: 5:06 PM CDT on September 14, 2026 (GMT -5)
      21 seconds ago
      67°
      50°
      61
      Feels Like 59
      Partly Cloudy
      N
      18
      Gusts 29 mph
      Higher temperature is expected tomorrow
      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
        Tue 09/15
        Low 60°f
         100% Precip. / 1.48 in
        Thunderstorms likely. Rainfall will be locally heavy at times. Potential for severe thunderstorms. Low near 60F. Winds S at 15 to 25 mph. Chance of rain 100%. 1 to 2 inches of rain expected.
        Tomorrow
        Wed 09/16
        High 68°f
         53% Precip. / 0.06 in
        Rain showers early with overcast skies later in the day. High 68F. Winds WNW at 5 to 10 mph. Chance of rain 50%.
        Tomorrow night
        Wed 09/16
        Low 53°f
         7% Precip. / 0 in
        Cloudy skies early will become partly cloudy later at night. Low 53F. Winds light and variable.
        Hourly Forecast
        Now
        61°
        6PM
        50%
        62°
        7PM
        52%
        62°
        7:20PM
        Sunset
        8PM
        62°
        9PM
        35%
        64°
        10PM
        100%
        65°
        11PM
        100%
        65°
        12AM
        92%
        66°
        1AM
        83%
        66°
        2AM
        54%
        67°
        3AM
        57%
        67°
        4AM
        55%
        68°
        5AM
        62%
        68°
        6AM
        59%
        67°
        6:48AM
        Sunrise
        7AM
        54%
        67°
        8AM
        52%
        67°
        9AM
        34%
        68°
        10AM
        68°
        11AM
        68°
        12PM
        68°
        1PM
        67°
        2PM
        68°
        3PM
        68°
        4PM
        68°
        5PM
        68°
        Precipitation
        100%
        Thunderstorms possible around 5:45 PM
        Pollen
        None
        Air Quality
        19
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 29.87 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point58°F
        5. Humidity 89%
        6. Rainfall 0.47 in
        7. Snow Depth 0 in
         KOLZ Station History
        Almanac for September 14, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 75°F 91°F 1998
        4. Low 50°F 51°F 34°F 2014
        5. Rain/Snow Depth
        6. Precipitation 1.48 in - in -
        7. Snow 0 in - in -
        Almanac for September 15, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 75°F 91°F
        4. Low 50°F 51°F 31°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:47 AM 7:20 PM
        3. Civil Twilight 6:19 AM 7:48 PM
        4. Nautical Twilight 5:45 AM 8:22PM
        5. Astronomical Twilight 5:10 AM 8:56 PM
        1. Length of Visible Light 13h 29m
        2. Length of Day 12h 32m
        3. Tomorrow will be 2 minutes 52 seconds shorter
        1. Moon 10:46 AM 8:39 PM
        2. Waxing Crescent13% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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