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      Elev 1099 ft, 42.518 °N 96.571 °W

      Jefferson, SD

      Jefferson Station65°
      Updated: 9:39 AM CDT on September 16, 2026 (GMT -5)
      4 seconds ago
      69°
      57°
      65
      Feels Like 65
      Partly Cloudy
      N
      10
      Gusts 18 mph
      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
        Thu 09/17
        High 69°f
         21% Precip. / 0 in
        Overcast. Slight chance of a rain shower. High 69F. Winds ESE at 10 to 15 mph.
        Tonight
        Thu 09/17
        Low 63°f
         23% Precip. / 0 in
        Cloudy. Low 63F. Winds light and variable.
        Tomorrow
        Fri 09/18
        High 74°f67°f
         20% Precip. / 0 in
        Overcast. Slight chance of a rain shower. High 74F. Winds ENE at 5 to 10 mph.
        Hourly Forecast
        Now
        63°
        10AM
        64°
        11AM
        66°
        12PM
        67°
        1PM
        68°
        2PM
        68°
        3PM
        67°
        4PM
        67°
        5PM
        67°
        6PM
        67°
        7PM
        67°
        7:33PM
        Sunset
        8PM
        65°
        9PM
        64°
        10PM
        64°
        11PM
        64°
        12AM
        64°
        1AM
        65°
        2AM
        65°
        3AM
        65°
        4AM
        65°
        5AM
        64°
        6AM
        64°
        7AM
        21%
        64°
        7:08AM
        Sunrise
        8AM
        64°
        9AM
        64°
        Precipitation
        24%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        14
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.26 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point55°F
        5. Humidity 73%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSUX Station History
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 77°F 97°F 1955
        4. Low 57°F 51°F 33°F 1903
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 77°F 103°F
        4. Low 57°F 51°F 33°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:07 AM 7:34 PM
        3. Civil Twilight 6:39 AM 8:02 PM
        4. Nautical Twilight 6:05 AM 8:35PM
        5. Astronomical Twilight 5:31 AM 9:09 PM
        1. Length of Visible Light 13h 23m
        2. Length of Day 12h 26m
        3. Tomorrow will be 2 minutes 50 seconds shorter
        1. Moon 1:17 PM 10:02 PM
        2. Waxing Crescent30% 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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