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      Elev 4570 ft, 46.436 °N 111.970 °W

      Jefferson City, MT

      Jefferson County Station57°
      Updated: 10:24 AM MDT on September 12, 2026 (GMT -6)
      8 minutes ago
      64°
      40°
      57
      Feels Like 57
      Mostly 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
        Sun 09/13
        High 64°f
         1% Precip. / 0 in
        Partly cloudy. High 64F. Winds NE at 5 to 10 mph.
        Tonight
        Sun 09/13
        Low 40°f
         20% Precip. / 0 in
        Some clouds. Low around 40F. Winds NW at 5 to 10 mph.
        Tomorrow
        Mon 09/14
        High 65°f40°f
         21% Precip. / 0 in
        Intervals of clouds and sunshine. High near 65F. Winds N at 10 to 15 mph. Coastal flooding possible at high tide.
        Hourly Forecast
        Now
        53°
        11AM
        55°
        12PM
        58°
        1PM
        61°
        2PM
        62°
        3PM
        63°
        4PM
        64°
        5PM
        64°
        6PM
        62°
        7PM
        60°
        7:45PM
        Sunset
        8PM
        57°
        9PM
        55°
        10PM
        52°
        11PM
        50°
        12AM
        48°
        1AM
        46°
        2AM
        45°
        3AM
        44°
        4AM
        44°
        5AM
        43°
        6AM
        42°
        7AM
        41°
        7:03AM
        Sunrise
        8AM
        43°
        9AM
        46°
        10AM
        49°
        Precipitation
        21%
        Pollen
        None
        Air Quality
        31
        Good
        UV Index
        2
        Low
        Additional Conditions
        1. Pressure 30.03 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point43°F
        5. Humidity 68%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KHLN Station History
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 64°F 74°F 88°F 2017
        4. Low 40°F 39°F 18°F 1989
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 73°F 89°F
        4. Low 40°F 39°F 21°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:02 AM 7:45 PM
        3. Civil Twilight 6:32 AM 8:15 PM
        4. Nautical Twilight 5:55 AM 8:51PM
        5. Astronomical Twilight 5:18 AM 9:29 PM
        1. Length of Visible Light 13h 43m
        2. Length of Day 12h 42m
        3. Tomorrow will be 3 minutes 14 seconds shorter
        1. Moon 8:54 AM 8:08 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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