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      Elev 4386 ft, 47.028 °N 109.300 °W

      Lewistown, MT

      Updated: 2:20 PM MDT on August 18, 2026 (GMT -6)
      3 minutes ago
      81°
      53°
      80
      Feels Like 80
      Partly Cloudy
      N
      16
      Gusts 30 mph
      Similar temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Today
      Wed 08/19
      High 80°f
      52% Precip. / 0 in
      Scattered thunderstorms. A few storms may be severe. High near 80F. Winds W at 10 to 20 mph. Chance of rain 50%.
      Tonight
      Wed 08/19
      Low 54°f
      15% Precip. / 0 in
      Some passing clouds. A stray shower or thunderstorm is possible. Low 54F. Winds WSW at 5 to 10 mph.
      Tomorrow
      Thu 08/20
      High 82°f54°f
      1% Precip. / 0 in
      Abundant sunshine. High 82F. Winds WNW at 10 to 15 mph.
      Hourly Forecast
      Now
      79°
      3PM
      45%
      79°
      4PM
      51%
      75°
      5PM
      52%
      77°
      6PM
      72°
      7PM
      69°
      8PM
      65°
      8:22PM
      Sunset
      9PM
      62°
      10PM
      61°
      11PM
      60°
      12AM
      59°
      1AM
      58°
      2AM
      58°
      3AM
      57°
      4AM
      56°
      5AM
      56°
      6AM
      55°
      6:19AM
      Sunrise
      7AM
      56°
      8AM
      62°
      9AM
      66°
      10AM
      69°
      11AM
      72°
      12PM
      75°
      1PM
      77°
      2PM
      79°
      Additional Conditions
      1. Pressure 29.87 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point45°F
      5. Humidity 30%
      6. Rainfall 0.19 in
      7. Snow Depth 0 in
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      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:18 AM 8:22 PM
      3. Civil Twilight 5:45 AM 8:55 PM
      4. Nautical Twilight 5:04 AM 9:36PM
      5. Astronomical Twilight 4:19 AM 10:21 PM
      1. Length of Visible Light 15h 10m
      2. Length of Day 14h 4m
      3. Tomorrow will be 3 minutes 5 seconds shorter
      1. Moon 1:29 PM 10:33 PM
      2. Waxing crescent36% of the Moon is Illuminated
      Aug 26
      Full Moon
      Sep 3
      Waning Half Last Qtr
      Sep 16
      Waxing Half First Qtr
      -
      -
      KLWT Station History
      Almanac for August 18, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 81°F 81°F 97°F 2001
      4. Low 53°F 49°F 33°F 1902
      5. Rain/Snow Depth
      6. Precipitation 0 in - in -
      7. Snow 0 in - in -
      Almanac for August 19, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 82°F 81°F 97°F
      4. Low 53°F 49°F 31°F
      Precipitation
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