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      Dense Fog Advisory
      until 10:00 AM CDT
      Elev 1453 ft, 43.494 °N 96.677 °W

      Sioux Falls, SD

      Sioux Falls Station61°
      Updated: 2:22 AM CDT on September 30, 2026 (GMT -5)
      9 minutes ago
      73°
      61°
      61
      Feels Like 61
      Fog
      N
      2
      Similar temperature is expected today
      Wundermap
      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
        Wed 09/30
        Low 60°f
         15% Precip. / 0 in
        Low clouds and fog. Low around 60F. Winds light and variable.
        Tomorrow
        Thu 10/01
        High 74°f
         20% Precip. / 0 in
        Morning fog, then cloudy in the afternoon. High 74F. Winds light and variable.
        Tomorrow night
        Thu 10/01
        Low 56°f
         21% Precip. / 0 in
        Mostly cloudy skies. Low 56F. WSW winds shifting to N at 10 to 15 mph.
        Hourly Forecast
        Now
        63°
        3AM
        15%
        62°
        4AM
        15%
        62°
        5AM
        15%
        62°
        6AM
        15%
        62°
        7AM
        15%
        62°
        7:22AM
        Sunrise
        8AM
        16%
        61°
        9AM
        18%
        62°
        10AM
        63°
        11AM
        65°
        12PM
        67°
        1PM
        70°
        2PM
        72°
        3PM
        73°
        4PM
        73°
        5PM
        73°
        6PM
        72°
        7PM
        70°
        7:09PM
        Sunset
        8PM
        67°
        9PM
        66°
        10PM
        65°
        11PM
        65°
        12AM
        64°
        1AM
        64°
        2AM
        63°
        Precipitation
        21%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        55
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.73 in
        2. Visibility 0.06 miles
        3. Clouds Cloudy
        4. Dew Point61°F
        5. Humidity 95%
        6. Rainfall 0.69 in
        7. Snow Depth 0 in
         KFSD Station History
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 70°F 93°F 2023
        4. Low 60°F 46°F 20°F 1895
        5. Rain/Snow Depth
        6. Precipitation 0 in 2.9 in -
        7. Snow 0 in - in -
        Almanac for October 1, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 66°F 69°F 95°F
        4. Low 49°F 45°F 23°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:23 AM 7:09 PM
        3. Civil Twilight 6:54 AM 7:37 PM
        4. Nautical Twilight 6:21 AM 8:10PM
        5. Astronomical Twilight 5:47 AM 8:44 PM
        1. Length of Visible Light 12h 43m
        2. Length of Day 11h 46m
        3. Tomorrow will be 2 minutes 57 seconds shorter
        1. Moon 9:05 PM 12:19 PM
        2. Waning Gibbous77% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
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