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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: 2:49 PM MDT on September 18, 2026 (GMT -6)
      3 minutes ago
      68°
      56°
      73
      Feels Like 72
      Mostly Cloudy
      N
      7
      Lower 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
        Sat 09/19
        High 68°f
         15% Precip. / 0 in
        Considerable cloudiness. A stray shower or thunderstorm is possible. High 68F. Winds NNW at 5 to 10 mph.
        Tonight
        Sat 09/19
        Low 52°f
         60% Precip. / 0.11 in
        Showers early, then cloudy overnight. Low 52F. Winds NNE at 5 to 10 mph. Chance of rain 60%. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/20
        High 74°f53°f
         15% Precip. / 0 in
        Intervals of clouds and sunshine. High 74F. Winds NNW at 5 to 10 mph.
        Hourly Forecast
        Now
        68°
        3PM
        68°
        4PM
        69°
        5PM
        70°
        6PM
        69°
        7PM
        68°
        7:48PM
        Sunset
        8PM
        66°
        9PM
        35%
        63°
        10PM
        51%
        60°
        11PM
        53%
        59°
        12AM
        61%
        58°
        1AM
        50%
        58°
        2AM
        57°
        3AM
        56°
        4AM
        55°
        5AM
        53°
        6AM
        53°
        7AM
        53°
        7:28AM
        Sunrise
        8AM
        53°
        9AM
        55°
        10AM
        58°
        11AM
        61°
        12PM
        63°
        1PM
        66°
        2PM
        69°
        Precipitation
        61%
        Rain possible after 9 PM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        29
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 30.05 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point47°F
        5. Humidity 46%
        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 68°F 81°F 97°F 1981
        4. Low 56°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 74°F 80°F 94°F
        4. Low 56°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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