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      Elev 748 ft, 41.675 °N 91.356 °W

      West Branch, IA

      West Branch Station66°
      Updated: 9:21 AM CDT on September 18, 2026 (GMT -5)
      2 minutes ago
      75°
      64°
      66
      Feels Like 66
      Light Rain and Thunder
      N
      13
      Gusts 20 mph
      Lower 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
        Sat 09/19
        High 75°f
         100% Precip. / 0.41 in
        Cloudy. Periods of rain this morning. The rain may be heavy at times. High around 75F. Winds ESE at 10 to 20 mph. Chance of rain 100%. Rainfall near a half an inch. Localized flooding is possible.
        Tonight
        Sat 09/19
        Low 68°f
         62% Precip. / 0.35 in
        Partly cloudy this evening with thunderstorms becoming likely overnight. Severe thunderstorms expected. Low 68F. Winds ESE at 5 to 10 mph. Chance of rain 60%.
        Tomorrow
        Sun 09/20
        High 80°f65°f
         63% Precip. / 0.23 in
        Scattered thunderstorms in the morning. Cloudy skies late. Severe thunderstorms expected. High around 80F. Winds S at 5 to 10 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        66°
        10AM
        90%
        66°
        11AM
        67°
        12PM
        68°
        1PM
        70°
        2PM
        71°
        3PM
        73°
        4PM
        74°
        5PM
        74°
        6PM
        74°
        7PM
        72°
        7:09PM
        Sunset
        8PM
        71°
        9PM
        70°
        10PM
        69°
        11PM
        69°
        12AM
        69°
        1AM
        69°
        2AM
        36%
        69°
        3AM
        59%
        69°
        4AM
        62%
        69°
        5AM
        56%
        69°
        6AM
        55%
        70°
        6:50AM
        Sunrise
        7AM
        54%
        70°
        8AM
        63%
        71°
        9AM
        55%
        72°
        Precipitation
        90%
        Rain ending around 10:30 AM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        43
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.22 in
        2. Visibility 6 miles
        3. Clouds Cloudy
        4. Dew Point64°F
        5. Humidity 96%
        6. Rainfall 0.05 in
        7. Snow Depth 0 in
         KIOW Station History
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°F 76°F 93°F 1972
        4. Low 64°F 51°F 28°F 1916
        5. Rain/Snow Depth
        6. Precipitation 0.76 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 76°F 96°F
        4. Low 64°F 50°F 33°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:48 AM 7:09 PM
        3. Civil Twilight 6:21 AM 7:37 PM
        4. Nautical Twilight 5:48 AM 8:09PM
        5. Astronomical Twilight 5:14 AM 8:43 PM
        1. Length of Visible Light 13h 16m
        2. Length of Day 12h 20m
        3. Tomorrow will be 2 minutes 45 seconds shorter
        1. Moon 2:47 PM 11:18 PM
        2. First Quarter49% 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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