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      Flood Watch
      until 12:00 AM EDT
      Elev 631 ft, 38.788 °N 82.978 °W

      Rosemount, OH

      Portsmouth Station70°
      Updated: 2:58 AM EDT on September 12, 2026 (GMT -4)
      9 minutes ago
      81°
      67°
      70
      Feels Like 71
      Fair
      N
      0
      Similar 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
        Tonight
        Fri 09/11
        Low 67°f
         15% Precip. / 0 in
        Partly cloudy. A stray shower or thunderstorm is possible. Low 67F. Winds light and variable.
        Tomorrow
        Sat 09/12
        High 78°f
         75% Precip. / 0.21 in
        Rain early with thunderstorms developing in the afternoon. High 78F. Winds light and variable. Chance of rain 80%. Localized flooding is possible.
        Tomorrow night
        Sat 09/12
        Low 68°f
         46% Precip. / 0.03 in
        Scattered thunderstorms in the evening with some fog possible late. Low 68F. Winds light and variable. Chance of rain 50%. Localized flooding is possible.
        Hourly Forecast
        Now
        70°
        3AM
        70°
        4AM
        69°
        5AM
        69°
        6AM
        68°
        7AM
        68°
        7:10AM
        Sunrise
        8AM
        69°
        9AM
        71°
        10AM
        45%
        73°
        11AM
        63%
        76°
        12PM
        55%
        77°
        1PM
        38%
        77°
        2PM
        76%
        77°
        3PM
        72%
        77°
        4PM
        53%
        77°
        5PM
        57%
        77°
        6PM
        33%
        76°
        7PM
        36%
        75°
        7:45PM
        Sunset
        8PM
        45%
        73°
        9PM
        35%
        71°
        10PM
        39%
        70°
        11PM
        33%
        70°
        12AM
        69°
        1AM
        32%
        70°
        2AM
        69°
        Precipitation
        76%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        51
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.91 in
        2. Visibility 7 miles
        3. Clouds Partly Cloudy
        4. Dew Point68°F
        5. Humidity 95%
        6. Rainfall 0.01 in
        7. Snow Depth 0 in
         KPMH Station History
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 82°F 100°F 1983
        4. Low 67°F 58°F 38°F 1917
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 78°F 81°F 100°F
        4. Low 67°F 57°F 38°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:10 AM 7:44 PM
        3. Civil Twilight 6:44 AM 8:11 PM
        4. Nautical Twilight 6:12 AM 8:43PM
        5. Astronomical Twilight 5:39 AM 9:15 PM
        1. Length of Visible Light 13h 27m
        2. Length of Day 12h 34m
        3. Tomorrow will be 2 minutes 29 seconds shorter
        1. Moon 8:46 AM 8:19 PM
        2. Waxing Crescent2% 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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