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      Dense Fog Advisory
      until 10:00 AM CDT
      Elev 1509 ft, 44.370 °N 100.351 °W

      Pierre, SD

      Pierre Station57°
      Updated: 9:05 AM CDT on September 17, 2026 (GMT -5)
      5 minutes ago
      74°
      49°
      57
      Feels Like 57
      Fog
      N
      4
      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
        Today
        Fri 09/18
        High 74°f
         22% Precip. / 0 in
        Generally cloudy. Slight chance of a rain shower. High 74F. Winds E at 10 to 20 mph.
        Tonight
        Fri 09/18
        Low 62°f
         99% Precip. / 1.03 in
        Rain and thunderstorms. Low 62F. Winds E at 10 to 20 mph. Chance of rain 100%. Rainfall near an inch. Localized flooding is possible.
        Tomorrow
        Sat 09/19
        High 67°f57°f
         50% Precip. / 0.02 in
        Rain showers early with overcast skies later in the day. High 67F. Winds NE at 10 to 20 mph. Chance of rain 50%.
        Hourly Forecast
        Now
        55°
        10AM
        58°
        11AM
        62°
        12PM
        66°
        1PM
        68°
        2PM
        70°
        3PM
        72°
        4PM
        73°
        5PM
        73°
        6PM
        72°
        7PM
        32%
        71°
        7:47PM
        Sunset
        8PM
        35%
        68°
        9PM
        32%
        66°
        10PM
        93%
        65°
        11PM
        84%
        64°
        12AM
        99%
        64°
        1AM
        99%
        63°
        2AM
        93%
        64°
        3AM
        89%
        64°
        4AM
        95%
        64°
        5AM
        89%
        64°
        6AM
        59%
        64°
        7AM
        51%
        63°
        7:23AM
        Sunrise
        8AM
        34%
        63°
        9AM
        63°
        Precipitation
        99%
        Pollen
        None
        Air Quality
        24
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.26 in
        2. Visibility 0.25 miles
        3. Clouds Cloudy
        4. Dew Point53°F
        5. Humidity 96%
        6. Rainfall 0.06 in
        7. Snow Depth 0 in
         KPIR Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 77°F 104°F 2000
        4. Low 49°F 49°F 34°F 1981
        5. Rain/Snow Depth
        6. Precipitation 1.03 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 77°F 104°F
        4. Low 49°F 49°F 30°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:22 AM 7:47 PM
        3. Civil Twilight 6:53 AM 8:16 PM
        4. Nautical Twilight 6:19 AM 8:51PM
        5. Astronomical Twilight 5:43 AM 9:26 PM
        1. Length of Visible Light 13h 23m
        2. Length of Day 12h 25m
        3. Tomorrow will be 3 minutes 1 second shorter
        1. Moon 2:43 PM 10:52 PM
        2. Waxing Crescent40% 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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