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      Elev 2461 ft, 47.463 °N 114.915 °W

      Plains, MT

      Helterline Road Station54°
      Updated: 10:27 AM MDT on September 14, 2026 (GMT -6)
      1 minute ago
      60°
      43°
      54
      Feels Like 54
      Cloudy
      N
      3
      Lower 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
        Tue 09/15
        High 60°f
         4% Precip. / 0 in
        Cloudy skies early, then partly cloudy this afternoon. High near 60F. Winds W at 5 to 10 mph.
        Tonight
        Tue 09/15
        Low 42°f
         7% Precip. / 0 in
        Partly to mostly cloudy. Low 42F. Winds light and variable.
        Tomorrow
        Wed 09/16
        High 65°f45°f
         7% Precip. / 0 in
        Overcast. High near 65F. Winds light and variable.
        Hourly Forecast
        Now
        52°
        11AM
        53°
        12PM
        56°
        1PM
        57°
        2PM
        58°
        3PM
        58°
        4PM
        59°
        5PM
        59°
        6PM
        58°
        7PM
        57°
        7:53PM
        Sunset
        8PM
        55°
        9PM
        54°
        10PM
        52°
        11PM
        51°
        12AM
        50°
        1AM
        49°
        2AM
        48°
        3AM
        46°
        4AM
        46°
        5AM
        45°
        6AM
        44°
        7AM
        43°
        7:17AM
        Sunrise
        8AM
        44°
        9AM
        48°
        10AM
        51°
        Precipitation
        7%
        Pollen
        None
        Air Quality
        22
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point46°F
        5. Humidity 80%
        6. Rainfall 0.02 in
        7. Snow Depth 0 in
         KTHM Station History
        Almanac for September 14, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 60°F 77°F 90°F 1981
        4. Low 43°F 40°F 19°F 1970
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 15, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 77°F 91°F
        4. Low 43°F 40°F 19°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:16 AM 7:53 PM
        3. Civil Twilight 6:45 AM 8:24 PM
        4. Nautical Twilight 6:08 AM 9:00PM
        5. Astronomical Twilight 5:29 AM 9:39 PM
        1. Length of Visible Light 13h 39m
        2. Length of Day 12h 37m
        3. Tomorrow will be 3 minutes 23 seconds shorter
        1. Moon 11:35 AM 8:57 PM
        2. Waxing Crescent14% 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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