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      Elev 837 ft, 41.660 °N 92.015 °W

      Williamsburg, IA

      Williamsburg Station70°
      Updated: 10:14 PM CDT on September 18, 2026 (GMT -5)
      9 minutes ago
      74°
      63°
      70
      Feels Like 70
      Partly Cloudy
      N
      9
      Gusts 16 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
        Sat 09/19
        Low 69°f
         62% Precip. / 0.03 in
        Partly cloudy this evening with thunderstorms becoming likely overnight. Severe thunderstorms expected. Low 69F. Winds SE at 5 to 10 mph. Chance of rain 60%.
        Tomorrow
        Sun 09/20
        High 80°f
         57% Precip. / 0.2 in
        Scattered showers and thunderstorms, especially early in the day. Severe thunderstorms expected. High near 80F. Winds S at 5 to 10 mph. Chance of rain 60%.
        Tomorrow night
        Sun 09/20
        Low 63°f
         73% Precip. / 0.94 in
        Thunderstorms during the evening will give way to steady rain overnight. Storms may contain strong gusty winds. Low 63F. Winds N at 5 to 10 mph. Chance of rain 70%. Rainfall near an inch.
        Hourly Forecast
        Now
        70°
        11PM
        70°
        12AM
        70°
        1AM
        70°
        2AM
        71°
        3AM
        71°
        4AM
        70°
        5AM
        43%
        70°
        6AM
        63%
        70°
        6:52AM
        Sunrise
        7AM
        43%
        70°
        8AM
        55%
        71°
        9AM
        38%
        71°
        10AM
        57%
        72°
        11AM
        57%
        74°
        12PM
        76°
        1PM
        78°
        2PM
        79°
        3PM
        32%
        79°
        4PM
        33%
        79°
        5PM
        30%
        78°
        6PM
        36%
        78°
        7PM
        40%
        76°
        7:10PM
        Sunset
        8PM
        48%
        73°
        9PM
        47%
        71°
        10PM
        67%
        70°
        Precipitation
        67%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        39
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 9 miles
        3. Clouds Partly Cloudy
        4. Dew Point70°F
        5. Humidity 100%
        6. Rainfall 0.24 in
        7. Snow Depth 0 in
         KTZT Station History
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 76°F 94°F 1948
        4. Low 63°F 49°F 37°F 1992
        5. Rain/Snow Depth
        6. Precipitation 0.03 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 75°F 96°F
        4. Low 63°F 49°F 31°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:52 AM 7:10 PM
        3. Civil Twilight 6:24 AM 7:37 PM
        4. Nautical Twilight 5:52 AM 8:10PM
        5. Astronomical Twilight 5:18 AM 8:43 PM
        1. Length of Visible Light 13h 13m
        2. Length of Day 12h 17m
        3. Tomorrow will be 2 minutes 47 seconds shorter
        1. Moon 3:37 PM -
        2. Waxing Gibbous59% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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