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      Flash Flood Watch
      until 12:00 AM MDT
      Elev 2850 ft, 43.569 °N 116.110 °W

      Boise, ID

      Harris Ranch Station73°
      Updated: 3:38 PM MDT on September 18, 2026 (GMT -6)
      5 minutes ago
      72°
      57°
      73
      Feels Like 72
      Partly Cloudy
      N
      4
      Higher 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 53°f
         49% Precip. / 0.11 in
        Cloudy with showers. Low 53F. Winds N at 5 to 10 mph. Chance of rain 50%. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/20
        High 75°f
         18% Precip. / 0 in
        Sunshine and clouds mixed. High around 75F. Winds NNW at 5 to 10 mph.
        Tomorrow night
        Sun 09/20
        Low 54°f
         3% Precip. / 0 in
        A mostly clear sky. Low 54F. Winds ENE at 5 to 10 mph.
        Hourly Forecast
        Now
        71°
        4PM
        71°
        5PM
        71°
        6PM
        70°
        7PM
        67°
        7:48PM
        Sunset
        8PM
        65°
        9PM
        63°
        10PM
        50%
        62°
        11PM
        40%
        59°
        12AM
        58%
        59°
        1AM
        52%
        59°
        2AM
        58°
        3AM
        57°
        4AM
        56°
        5AM
        54°
        6AM
        54°
        7AM
        53°
        7:28AM
        Sunrise
        8AM
        53°
        9AM
        56°
        10AM
        58°
        11AM
        61°
        12PM
        64°
        1PM
        67°
        2PM
        70°
        3PM
        72°
        Precipitation
        58%
        Rain possible after 10 PM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        31
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 30.03 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point45°F
        5. Humidity 40%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KBOI Station History
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 81°F 97°F 1981
        4. Low 57°F 50°F 31°F 1988
        5. Rain/Snow Depth
        6. Precipitation 0.11 in - in -
        7. Snow 0 in - in -
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°F 80°F 94°F
        4. Low 57°F 49°F 34°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:27 AM 7:48 PM
        3. Civil Twilight 6:58 AM 8:17 PM
        4. Nautical Twilight 6:24 AM 8:51PM
        5. Astronomical Twilight 5:50 AM 9:25 PM
        1. Length of Visible Light 13h 18m
        2. Length of Day 12h 21m
        3. Tomorrow will be 2 minutes 57 seconds shorter
        1. Moon 3:39 PM 11:52 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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