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      Elev 1955 ft, 44.776 °N 96.757 °W

      Altamont, SD

      Clear Lake Station52°
      Updated: 10:02 PM CDT on September 13, 2026 (GMT -5)
      5 minutes ago
      70°
      49°
      52
      Feels Like 52
      Clear
      N
      5
      Similar temperature is expected tomorrow
      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
        Mon 09/14
        Low 51°f
         24% Precip. / 0 in
        Partly cloudy this evening, then becoming cloudy after midnight. A stray shower or thunderstorm is possible. Low 51F. Winds SE at 10 to 15 mph.
        Tomorrow
        Tue 09/15
        High 67°f
         98% Precip. / 0.76 in
        Windy with thunderstorms in the morning. Variable clouds with a chance of lingering showers during the afternoon. High 67F. Winds S at 20 to 30 mph. Chance of rain 100%. Locally heavy rainfall possible.
        Tomorrow night
        Tue 09/15
        Low 50°f
         15% Precip. / 0 in
        Partly cloudy skies. Slight chance of a rain shower. Low around 50F. Winds W at 10 to 20 mph.
        Hourly Forecast
        Now
        53°
        11PM
        53°
        12AM
        52°
        1AM
        52°
        2AM
        53°
        3AM
        54°
        4AM
        55°
        5AM
        56°
        6AM
        56°
        7AM
        87%
        56°
        7:04AM
        Sunrise
        8AM
        98%
        55°
        9AM
        97%
        55°
        10AM
        89%
        56°
        11AM
        80%
        57°
        12PM
        43%
        57°
        1PM
        31%
        59°
        2PM
        48%
        60°
        3PM
        39%
        63°
        4PM
        63°
        5PM
        31%
        64°
        6PM
        66°
        7PM
        66°
        7:38PM
        Sunset
        8PM
        64°
        9PM
        63°
        10PM
        62°
        Precipitation
        98%
        Pollen
        None
        Air Quality
        28
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.13 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point43°F
        5. Humidity 69%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KCNB Station History
        Almanac for September 14, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 70°F 71°F 90°F 1969
        4. Low 49°F 50°F 30°F 1956
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.3 in -
        7. Snow 0 in 0 in -
        Almanac for September 15, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 71°F 96°F
        4. Low 49°F 49°F 30°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:04 AM 7:39 PM
        3. Civil Twilight 6:35 AM 8:08 PM
        4. Nautical Twilight 6:00 AM 8:43PM
        5. Astronomical Twilight 5:23 AM 9:19 PM
        1. Length of Visible Light 13h 33m
        2. Length of Day 12h 34m
        3. Tomorrow will be 3 minutes 5 seconds shorter
        1. Moon 11:10 AM 8:51 PM
        2. Waxing Crescent13% 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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