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      Elev 2907 ft, 47.797 °N 114.307 °W

      Big Arm, MT

      Mon, Oct 26, 2026
      Tomorrow
      Tue 10/27
      High 48°f36°f
      10% Precip. / 0 in
      Cloudy early with partial sunshine expected late. High 48F. Winds light and variable.
      Tomorrow night
      Tue 10/27
      Low 36°f
      66% Precip. / 0.17 in
      Cloudy with showers. Low 36F. Winds light and variable. Chance of rain 70%.
      Sunrise 8:12 AM
      Sunset 6:28 PM
      Moonrise 6:20 PM
      Moonset 9:07 AM
      Waning Gibbous, 98% visible
      Hourly Forecast
      12AM
      36°
      1AM
      35°
      2AM
      34°
      3AM
      34°
      4AM
      33°
      5AM
      33°
      6AM
      32°
      7AM
      32°
      8AM
      32°
      8:12AM
      Sunrise
      9AM
      33°
      10AM
      36°
      11AM
      38°
      12PM
      39°
      1PM
      41°
      2PM
      43°
      3PM
      45°
      4PM
      46°
      5PM
      46°
      6PM
      45°
      6:28PM
      Sunset
      7PM
      44°
      8PM
      41°
      9PM
      41%
      41°
      10PM
      48%
      40°
      11PM
      39%
      39°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Partly Cloudy
      36°F 31°F 3% 0in 55% 31°F 82% 6 mph N 30.18in
      1:00 am
      Mostly Cloudy
      35°F 30°F 4% 0in 63% 30°F 84% 5 mph NNE 30.18in
      2:00 am
      Mostly Cloudy
      34°F 30°F 4% 0in 66% 30°F 85% 5 mph N 30.17in
      3:00 am
      Mostly Cloudy
      34°F 30°F 4% 0in 68% 30°F 84% 4 mph NNE 30.17in
      4:00 am
      Mostly Cloudy
      33°F 29°F 4% 0in 69% 29°F 87% 4 mph N 30.16in
      5:00 am
      Mostly Cloudy
      33°F 29°F 4% 0in 71% 29°F 87% 3 mph N 30.15in
      6:00 am
      Cloudy
      32°F 32°F 4% 0in 84% 29°F 88% 2 mph N 30.14in
      7:00 am
      Cloudy
      32°F 32°F 5% 0in 81% 29°F 87% 3 mph N 30.13in
      8:00 am
      Cloudy
      32°F 32°F 5% 0in 84% 29°F 88% 2 mph N 30.12in
      9:00 am
      Cloudy
      33°F 33°F 4% 0in 90% 30°F 89% 2 mph NNE 30.12in
      10:00 am
      Mostly Cloudy
      36°F 36°F 3% 0in 79% 32°F 87% 2 mph N 30.1in
      11:00 am
      Cloudy
      38°F 38°F 1% 0in 87% 32°F 79% 2 mph ENE 30.07in
      12:00 pm
      Cloudy
      39°F 39°F 1% 0in 92% 32°F 75% 2 mph NE 30.04in
      1:00 pm
      Mostly Cloudy
      41°F 41°F 0% 0in 75% 32°F 69% 2 mph NE 30.01in
      2:00 pm
      Partly Cloudy
      43°F 43°F 0% 0in 54% 33°F 67% 3 mph ENE 29.97in
      3:00 pm
      Partly Cloudy
      45°F 44°F 0% 0in 56% 33°F 63% 3 mph NE 29.93in
      4:00 pm
      Partly Cloudy
      46°F 45°F 0% 0in 58% 33°F 59% 3 mph ENE 29.91in
      5:00 pm
      Partly Cloudy
      46°F 45°F 0% 0in 58% 33°F 60% 3 mph NE 29.89in
      6:00 pm
      Mostly Cloudy
      45°F 44°F 10% 0in 69% 34°F 65% 3 mph S 29.88in
      7:00 pm
      Mostly Cloudy
      44°F 44°F 7% 0in 62% 34°F 69% 3 mph SW 29.89in
      8:00 pm
      Cloudy
      41°F 41°F 24% 0in 97% 35°F 79% 3 mph WSW 29.9in
      9:00 pm
      Showers
      41°F 38°F 41% 0.02in 100% 36°F 83% 4 mph SW 29.91in
      10:00 pm
      Showers
      40°F 38°F 48% 0.03in 100% 37°F 88% 4 mph SW 29.93in
      11:00 pm
      Showers
      39°F 37°F 39% 0.01in 100% 37°F 91% 4 mph SW 29.94in
      Additional Conditions
      1. Pressure 30.19 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point33°F
      5. Humidity 47%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      KGPI Station History
      Almanac for October 25, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 53°F 49°F 74°F 1955
      4. Low 33°F 31°F 1°F 2020
      5. Rain/Snow Depth
      6. Precipitation 0 in 4.1 in -
      7. Snow 0 in 0 in -
      Almanac for October 26, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 48°F 49°F 71°F
      4. Low 31°F 31°F 0°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 8:11 AM 6:30 PM
      3. Civil Twilight 7:39 AM 7:02 PM
      4. Nautical Twilight 7:03 AM 7:38PM
      5. Astronomical Twilight 6:27 AM 8:14 PM
      1. Length of Visible Light 11h 22m
      2. Length of Day 10h 19m
      3. Tomorrow will be 3 minutes 12 seconds shorter
      1. Moon 5:54 PM 7:43 AM
      2. Full99% of the Moon is Illuminated
      Oct 25
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nov 9
      New Moon
      Nov 17
      Waxing Half First Qtr
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary