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      Elev 5164 ft, 40.077 °N 105.192 °W

      Boulder, CO

      Winchester Circle Station63°
      Updated: 11:07 PM MDT on September 11, 2026 (GMT -6)
      7 minutes ago
      90°
      55°
      63
      Feels Like 63
      Clear
      N
      3
      Lower 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
        Sat 09/12
        Low 53°f
         8% Precip. / 0 in
        Mainly clear. Low 53F. Winds NNW at 5 to 10 mph.
        Tomorrow
        Sun 09/13
        High 80°f
         15% Precip. / 0 in
        Partly cloudy skies. A stray shower or thunderstorm is possible. High around 80F. Winds E at 5 to 10 mph.
        Tomorrow night
        Sun 09/13
        Low 54°f
         15% Precip. / 0 in
        Partly cloudy. A stray shower or thunderstorm is possible. Low 54F. Winds light and variable.
        Hourly Forecast
        Now
        65°
        12AM
        64°
        1AM
        62°
        2AM
        60°
        3AM
        61°
        4AM
        59°
        5AM
        57°
        6AM
        56°
        6:38AM
        Sunrise
        7AM
        54°
        8AM
        57°
        9AM
        59°
        10AM
        62°
        11AM
        65°
        12PM
        69°
        1PM
        72°
        2PM
        75°
        3PM
        77°
        4PM
        78°
        5PM
        78°
        6PM
        78°
        7PM
        75°
        7:14PM
        Sunset
        8PM
        71°
        9PM
        68°
        10PM
        66°
        11PM
        64°
        Precipitation
        15%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        34
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.73 in
        2. Visibility 9 miles
        3. Clouds Clear
        4. Dew Point36°F
        5. Humidity 34%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KBDU Station History
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 90°F 81°F 93°F 1956
        4. Low 55°F 50°F 31°F 1974
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.3 in -
        7. Snow 0 in 0 in -
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 80°F 95°F
        4. Low 55°F 49°F 31°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:39 AM 7:14 PM
        3. Civil Twilight 6:11 AM 7:41 PM
        4. Nautical Twilight 5:39 AM 8:13PM
        5. Astronomical Twilight 5:06 AM 8:46 PM
        1. Length of Visible Light 13h 29m
        2. Length of Day 12h 35m
        3. Tomorrow will be 2 minutes 36 seconds shorter
        1. Moon 8:20 AM 7:48 PM
        2. Waxing Crescent2% 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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