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      Elev 1506 ft, 46.236 °N 112.129 °W

      Boulder, MT

      Boulder Station43°
      Updated: 6:09 AM MDT on September 20, 2026 (GMT -6)
      2 minutes ago
      69°
      43°
      43
      Feels Like 43
      Partly Cloudy
      N
      2
      Higher 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
        Mon 09/21
        High 69°f
         3% Precip. / 0 in
        Partly cloudy. High 69F. Winds NNW at 5 to 10 mph.
        Tonight
        Mon 09/21
        Low 42°f
         4% Precip. / 0 in
        A clear sky. Low 42F. Winds light and variable.
        Tomorrow
        Tue 09/22
        High 74°f45°f
         4% Precip. / 0 in
        Mainly sunny. High 74F. Winds S at 5 to 10 mph.
        Hourly Forecast
        Now
        44°
        7AM
        44°
        7:13AM
        Sunrise
        8AM
        44°
        9AM
        47°
        10AM
        51°
        11AM
        56°
        12PM
        60°
        1PM
        63°
        2PM
        65°
        3PM
        66°
        4PM
        68°
        5PM
        67°
        6PM
        67°
        7PM
        65°
        7:29PM
        Sunset
        8PM
        61°
        9PM
        58°
        10PM
        55°
        11PM
        52°
        12AM
        51°
        1AM
        49°
        2AM
        48°
        3AM
        46°
        4AM
        45°
        5AM
        44°
        6AM
        44°
        Precipitation
        4%
        Pollen
        None
        Air Quality
        35
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.17 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point42°F
        5. Humidity 91%
        6. Rainfall 0.15 in
        7. Snow Depth 0 in
         KHLN Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 70°F 89°F 1949
        4. Low 43°F 37°F 15°F 1983
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 70°F 86°F
        4. Low 43°F 37°F 16°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:13 AM 7:29 PM
        3. Civil Twilight 6:43 AM 7:59 PM
        4. Nautical Twilight 6:07 AM 8:34PM
        5. Astronomical Twilight 5:31 AM 9:11 PM
        1. Length of Visible Light 13h 16m
        2. Length of Day 12h 16m
        3. Tomorrow will be 3 minutes 14 seconds shorter
        1. Moon 4:59 PM 12:21 AM
        2. Waxing Gibbous69% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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