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      Flood Watch
      until 1:00 AM CDT
      Elev 837 ft, 41.660 °N 92.015 °W

      Williamsburg, IA

      Williamsburg Station65°
      Updated: 8:59 AM CDT on September 30, 2026 (GMT -5)
      9 minutes ago
      71°
      62°
      65
      Feels Like 65
      Rain
      N
      9
      Lower temperature is expected today
      Wundermap
      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
        Wed 09/30
        High 71°f
         100% Precip. / 0.42 in
        Cloudy with periods of rain. High 71F. Winds SSW at 10 to 15 mph. Chance of rain 100%. Rainfall around a half an inch. Locally heavy rainfall possible.
        Tonight
        Wed 09/30
        Low 66°f
         98% Precip. / 1.24 in
        Cloudy with periods of rain. Low 66F. Winds SSE at 5 to 10 mph. Chance of rain 100%. 1 to 2 inches of rain expected. Locally heavy rainfall possible.
        Tomorrow
        Thu 10/01
        High 69°f48°f
         82% Precip. / 0.38 in
        Showers with a possible thunderstorm in the morning, then variable clouds during the afternoon with still a chance of showers. High 69F. Winds N at 10 to 15 mph. Chance of rain 80%. Locally heavy rainfall possible.
        Hourly Forecast
        Now
        65°
        9AM
        100%
        65°
        10AM
        84%
        65°
        11AM
        55%
        66°
        12PM
        34%
        68°
        1PM
        77%
        68°
        2PM
        81%
        69°
        3PM
        78%
        69°
        4PM
        77%
        70°
        5PM
        77%
        70°
        6PM
        74%
        70°
        6:51PM
        Sunset
        7PM
        88%
        69°
        8PM
        95%
        68°
        9PM
        91%
        68°
        10PM
        78%
        67°
        11PM
        98%
        67°
        12AM
        94%
        67°
        1AM
        96%
        67°
        2AM
        99%
        67°
        3AM
        93%
        68°
        4AM
        86%
        67°
        5AM
        91%
        68°
        6AM
        86%
        68°
        7AM
        82%
        67°
        7:04AM
        Sunrise
        8AM
        63%
        67°
        Precipitation
        100%
        Rain likely to continue
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        58
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.83 in
        2. Visibility 3 miles
        3. Clouds Cloudy
        4. Dew Point65°F
        5. Humidity 100%
        6. Rainfall 0.9 in
        7. Snow Depth 0 in
         KTZT Station History
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 71°F 91°F 1952
        4. Low 62°F 45°F 26°F 1924
        5. Rain/Snow Depth
        6. Precipitation 1.66 in 2.9 in -
        7. Snow 0 in - in -
        Almanac for October 1, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 71°F 93°F
        4. Low 55°F 44°F 27°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:03 AM 6:51 PM
        3. Civil Twilight 6:36 AM 7:18 PM
        4. Nautical Twilight 6:04 AM 7:51PM
        5. Astronomical Twilight 5:31 AM 8:23 PM
        1. Length of Visible Light 12h 42m
        2. Length of Day 11h 47m
        3. Tomorrow will be 2 minutes 46 seconds shorter
        1. Moon 8:54 PM 11:52 AM
        2. Waning Gibbous77% 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
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