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      Elev 528 ft, 33.835 °N 81.847 °W

      Johnston, SC

      Johnston Station77°
      Updated: 9:38 AM EDT on September 22, 2026 (GMT -4)
      3 minutes ago
      87°
      70°
      77
      Feels Like 79
      Fair
      N
      5
      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
        Tue 09/22
        High 87°f
         24% Precip. / 0 in
        A mix of clouds and sun early followed by cloudy skies this afternoon. A stray shower or thunderstorm is possible. High 87F. Winds NE at 5 to 10 mph.
        Tonight
        Tue 09/22
        Low 68°f
         45% Precip. / 0.12 in
        Scattered thunderstorms early, then cloudy skies after midnight. Low 68F. Winds light and variable. Chance of rain 50%. Locally heavy rainfall possible.
        Tomorrow
        Wed 09/23
        High 74°f60°f
         42% Precip. / 0.05 in
        Showers in the morning, then cloudy in the afternoon. Much cooler. High 74F. Winds NE at 5 to 10 mph. Chance of rain 40%.
        Hourly Forecast
        Now
        78°
        10AM
        79°
        11AM
        82°
        12PM
        84°
        1PM
        85°
        2PM
        86°
        3PM
        85°
        4PM
        85°
        5PM
        84°
        6PM
        82°
        7PM
        31%
        79°
        7:24PM
        Sunset
        8PM
        43%
        76°
        9PM
        45%
        74°
        10PM
        37%
        74°
        11PM
        73°
        12AM
        32%
        73°
        1AM
        72°
        2AM
        72°
        3AM
        71°
        4AM
        71°
        5AM
        70°
        6AM
        70°
        7AM
        69°
        7:16AM
        Sunrise
        8AM
        32%
        69°
        9AM
        39%
        69°
        Precipitation
        45%
        Pollen
        None
        Air Quality
        53
        Moderate
        UV Index
        2
        Low
        Additional Conditions
        1. Pressure 30 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point72°F
        5. Humidity 81%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KAIK Station History
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 87°F 84°F 100°F 2010
        4. Low 70°F 61°F 44°F 2006
        5. Rain/Snow Depth
        6. Precipitation 0.12 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 23, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 84°F 97°F
        4. Low 70°F 60°F 42°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:15 AM 7:24 PM
        3. Civil Twilight 6:50 AM 7:48 PM
        4. Nautical Twilight 6:21 AM 8:17PM
        5. Astronomical Twilight 5:52 AM 8:47 PM
        1. Length of Visible Light 12h 58m
        2. Length of Day 12h 8m
        3. Tomorrow will be 2 minutes 6 seconds shorter
        1. Moon 5:19 PM 3:04 AM
        2. Waxing Gibbous85% 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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