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      Flood Watch
      until 6:00 PM MDT
      Elev 4155 ft, 46.705 °N 111.832 °W

      Helena, MT

      Helena Station74°
      Updated: 4:24 PM MDT on September 18, 2026 (GMT -6)
      just now
      78°
      49°
      74
      Feels Like 73
      Fair
      N
      11
      Gusts 16 mph
      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 09/19
        Low 52°f
         99% Precip. / 0.64 in
        Periods of rain. Low 52F. Winds WNW at 10 to 15 mph. Chance of rain 100%. Rainfall around a half an inch. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/20
        High 59°f
         95% Precip. / 0.37 in
        Rain early...then remaining cloudy with showers in the afternoon. High 59F. Winds light and variable. Chance of rain 100%. Rainfall near a quarter of an inch.
        Tomorrow night
        Sun 09/20
        Low 47°f
         8% Precip. / 0 in
        Cloudy early with partial clearing expected late. Low 47F. Winds light and variable.
        Hourly Forecast
        Now
        73°
        5PM
        72°
        6PM
        69°
        7PM
        67°
        7:32PM
        Sunset
        8PM
        65°
        9PM
        78%
        62°
        10PM
        99%
        61°
        11PM
        98%
        59°
        12AM
        85%
        60°
        1AM
        88%
        59°
        2AM
        84%
        58°
        3AM
        86%
        58°
        4AM
        77%
        58°
        5AM
        75%
        57°
        6AM
        79%
        56°
        7AM
        96%
        55°
        7:10AM
        Sunrise
        8AM
        85%
        53°
        9AM
        86%
        53°
        10AM
        76%
        53°
        11AM
        76%
        54°
        12PM
        70%
        55°
        1PM
        65%
        56°
        2PM
        58%
        57°
        3PM
        39%
        57°
        4PM
        58°
        Precipitation
        99%
        Rain possible after 9 PM
        Pollen
        None
        Air Quality
        28
        Good
        UV Index
        2
        Low
        Additional Conditions
        1. Pressure 29.89 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point47°F
        5. Humidity 40%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KHLN Station History
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 78°F 71°F 86°F 1981
        4. Low 49°F 43°F 20°F 1965
        5. Rain/Snow Depth
        6. Precipitation 0.64 in 0.04 in -
        7. Snow 0 in - in -
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 60°F 70°F 88°F
        4. Low 49°F 43°F 28°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:09 AM 7:32 PM
        3. Civil Twilight 6:38 AM 8:02 PM
        4. Nautical Twilight 6:03 AM 8:38PM
        5. Astronomical Twilight 5:25 AM 9:15 PM
        1. Length of Visible Light 13h 24m
        2. Length of Day 12h 23m
        3. Tomorrow will be 3 minutes 18 seconds shorter
        1. Moon 3:38 PM 11:17 PM
        2. First Quarter50% 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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