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      Elev 1460 ft, 47.944 °N 119.001 °W

      Grand Coulee, WA

      Grand Coulee Station46°
      Updated: 10:57 PM PDT on October 20, 2026 (GMT -7)
      6 minutes ago
      70°
      41°
      46
      Feels Like 46
      Clear
      N
      4
      Similar temperature is expected tomorrow
      Wundermap

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       Wundermap
      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
        Wed 10/21
        Low 37°f
         2% Precip. / 0 in
        Clear skies. Low 37F. Winds light and variable.
        Tomorrow
        Thu 10/22
        High 69°f
         2% Precip. / 0 in
        Sunny skies. High 69F. Winds light and variable.
        Tomorrow night
        Thu 10/22
        Low 39°f
         4% Precip. / 0 in
        Clear skies. Low 39F. Winds light and variable.
        Hourly Forecast
        Now
        50°
        11PM
        50°
        12AM
        48°
        1AM
        46°
        2AM
        42°
        3AM
        41°
        4AM
        40°
        5AM
        40°
        6AM
        38°
        7AM
        38°
        7:24AM
        Sunrise
        8AM
        39°
        9AM
        45°
        10AM
        50°
        11AM
        54°
        12PM
        59°
        1PM
        62°
        2PM
        65°
        3PM
        66°
        4PM
        67°
        5PM
        66°
        5:56PM
        Sunset
        6PM
        62°
        7PM
        57°
        8PM
        53°
        9PM
        51°
        10PM
        48°
        Precipitation
        2%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        85
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.07 in
        2. Visibility 9 miles
        3. Clouds Clear
        4. Dew Point31°F
        5. Humidity 48%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KOMK Station History
        Almanac for October 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 70°F 58°F 75°F 2003
        4. Low 41°F 39°F 21°F 1985
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for October 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 57°F 81°F
        4. Low 37°F 38°F 27°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:22 AM 5:57 PM
        3. Civil Twilight 6:51 AM 6:29 PM
        4. Nautical Twilight 6:15 AM 7:05PM
        5. Astronomical Twilight 5:39 AM 7:41 PM
        1. Length of Visible Light 11h 37m
        2. Length of Day 10h 34m
        3. Tomorrow will be 3 minutes 19 seconds shorter
        1. Moon 3:46 PM 12:51 AM
        2. Waxing Gibbous71% of the Moon is Illuminated
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
        Nov 8
        New Moon
        Nov 17
        Waxing Half First Qtr
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