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      Elev 1135 ft, 43.154 °N 93.201 °W

      Mason City, IA

      Mason City Station72°
      Updated: 1:50 PM CDT on September 6, 2026 (GMT -5)
      6 minutes ago
      77°
      66°
      72
      Feels Like 73
      Rain Shower
      N
      8
      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
        Mon 09/07
        High 77°f
         87% Precip. / 0.01 in
        Cloudy with occasional light rain throughout the day. High 77F. Winds SE at 10 to 15 mph. Chance of rain 90%.
        Tonight
        Mon 09/07
        Low 64°f
         18% Precip. / 0 in
        Partly to mostly cloudy. A stray shower or thunderstorm is possible. Low 64F. Winds SE at 5 to 10 mph.
        Tomorrow
        Tue 09/08
        High 80°f65°f
         15% Precip. / 0 in
        Considerable clouds early. Some decrease in clouds later in the day. A stray shower or thunderstorm is possible. High near 80F. Winds SSE at 10 to 20 mph.
        Hourly Forecast
        Now
        72°
        2PM
        80%
        73°
        3PM
        43%
        74°
        4PM
        75°
        5PM
        76°
        6PM
        76°
        7PM
        74°
        7:38PM
        Sunset
        8PM
        72°
        9PM
        70°
        10PM
        69°
        11PM
        68°
        12AM
        68°
        1AM
        67°
        2AM
        67°
        3AM
        66°
        4AM
        66°
        5AM
        65°
        6AM
        65°
        6:44AM
        Sunrise
        7AM
        65°
        8AM
        66°
        9AM
        67°
        10AM
        69°
        11AM
        73°
        12PM
        75°
        1PM
        77°
        Precipitation
        80%
        Rain ending around 3:30 PM
        Pollen
        Grass Pollen
        Low
        Air Quality
        59
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30.03 in
        2. Visibility 7 miles
        3. Clouds Mostly Cloudy
        4. Dew Point68°F
        5. Humidity 88%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KMCW Station History
        Almanac for September 6, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 76°F 103°F 1922
        4. Low 66°F 54°F 39°F 1988
        5. Rain/Snow Depth
        6. Precipitation 0.01 in - in -
        7. Snow 0 in - in -
        Almanac for September 7, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 76°F 99°F
        4. Low 66°F 53°F 34°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:42 AM 7:38 PM
        3. Civil Twilight 6:13 AM 8:07 PM
        4. Nautical Twilight 5:39 AM 8:42PM
        5. Astronomical Twilight 5:03 AM 9:17 PM
        1. Length of Visible Light 13h 53m
        2. Length of Day 12h 56m
        3. Tomorrow will be 2 minutes 53 seconds shorter
        1. Moon 12:58 AM 5:18 PM
        2. Waning Crescent28% 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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