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      Elev 194 ft, 47.577 °N 122.228 °W

      Mercer Island, WA

      SW Mercer Island Station50°
      Tue, Oct 20, 2026
      Tonight
      Tue 10/20
      Low 47°f
      17% Precip. / 0 in
      Clear to partly cloudy. Low 47F. Winds light and variable.
      Tomorrow
      Wed 10/21
      High 63°f
      20% Precip. / 0 in
      Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 63F. Winds N at 5 to 10 mph.
      Sunrise 7:35 AM
      Sunset 6:11 PM
      Moonrise 3:58 PM
      Moonset 1:05 AM
      Waxing Gibbous, 71% visible
      Hourly Forecast
      Now
      49°
      12AM
      49°
      1AM
      48°
      2AM
      48°
      3AM
      48°
      4AM
      48°
      5AM
      47°
      6AM
      47°
      7AM
      48°
      7:35AM
      Sunrise
      8AM
      48°
      9AM
      50°
      10AM
      51°
      11AM
      52°
      12PM
      55°
      1PM
      58°
      2PM
      60°
      3PM
      61°
      4PM
      61°
      5PM
      60°
      6PM
      58°
      6:11PM
      Sunset
      7PM
      56°
      8PM
      54°
      9PM
      52°
      10PM
      51°
      11PM
      50°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Clear
      		 49°F 48°F 3% 0in 11% 46°F 89% 4 mph NNE 30.05in
      1:00 am
      Mostly Clear
      		 48°F 47°F 3% 0in 20% 46°F 90% 4 mph NNE 30.05in
      2:00 am
      Partly Cloudy
      		 48°F 47°F 3% 0in 32% 45°F 91% 3 mph NNE 30.06in
      3:00 am
      Partly Cloudy
      		 48°F 46°F 3% 0in 55% 45°F 91% 4 mph NNE 30.06in
      4:00 am
      Partly Cloudy
      		 48°F 46°F 3% 0in 43% 45°F 91% 5 mph NNE 30.07in
      5:00 am
      Partly Cloudy
      		 47°F 46°F 15% 0in 45% 45°F 91% 4 mph NE 30.07in
      6:00 am
      Mostly Cloudy
      		 47°F 45°F 17% 0in 67% 45°F 91% 5 mph NNE 30.07in
      7:00 am
      Partly Cloudy
      		 48°F 46°F 20% 0in 58% 45°F 90% 5 mph NNE 30.08in
      8:00 am
      Mostly Cloudy
      		 48°F 46°F 20% 0in 67% 45°F 90% 4 mph NNE 30.08in
      9:00 am
      Mostly Cloudy
      		 50°F 48°F 20% 0in 64% 46°F 86% 6 mph NNE 30.09in
      10:00 am
      Partly Cloudy
      		 51°F 49°F 7% 0in 50% 46°F 84% 6 mph NNE 30.09in
      11:00 am
      Sunny
      		 52°F 50°F 6% 0in 17% 47°F 81% 8 mph NNE 30.09in
      12:00 pm
      Sunny
      		 55°F 53°F 4% 0in 6% 47°F 74% 8 mph N 30.07in
      1:00 pm
      Sunny
      		 58°F 56°F 1% 0in 1% 47°F 68% 8 mph N 30.06in
      2:00 pm
      Sunny
      		 60°F 58°F 1% 0in 0% 47°F 62% 8 mph N 30.04in
      3:00 pm
      Sunny
      		 61°F 60°F 0% 0in 0% 46°F 58% 9 mph NNW 30.03in
      4:00 pm
      Sunny
      		 61°F 60°F 0% 0in 0% 46°F 57% 8 mph NNW 30.02in
      5:00 pm
      Sunny
      		 60°F 60°F 0% 0in 0% 45°F 57% 7 mph NNW 30.01in
      6:00 pm
      Sunny
      		 58°F 57°F 1% 0in 0% 45°F 62% 6 mph NNW 30.01in
      7:00 pm
      Clear
      		 56°F 56°F 2% 0in 2% 45°F 67% 4 mph N 30.01in
      8:00 pm
      Clear
      		 54°F 54°F 3% 0in 0% 45°F 72% 4 mph N 30.02in
      9:00 pm
      Clear
      		 52°F 52°F 4% 0in 0% 45°F 77% 2 mph N 30.01in
      10:00 pm
      Clear
      		 51°F 51°F 4% 0in 0% 45°F 81% 3 mph NNE 30.01in
      11:00 pm
      Clear
      		 50°F 50°F 5% 0in 0% 45°F 84% 2 mph NNE 30in
      Additional Conditions
      1. Pressure 30.05 in
      2. Visibility 10 miles
      3. Clouds Clear
      4. Dew Point46°F
      5. Humidity 89%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KBFI Station History
      Almanac for October 19, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 67°F 59°F 73°F 1938
      4. Low 47°F 46°F 34°F 1949
      5. Rain/Snow Depth
      6. Precipitation 0 in 0.11 in -
      7. Snow 0 in - in -
      Almanac for October 20, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 63°F 59°F 70°F
      4. Low 47°F 46°F 34°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:33 AM 6:13 PM
      3. Civil Twilight 7:02 AM 6:44 PM
      4. Nautical Twilight 6:26 AM 7:20PM
      5. Astronomical Twilight 5:51 AM 7:55 PM
      1. Length of Visible Light 11h 41m
      2. Length of Day 10h 39m
      3. Tomorrow will be 3 minutes 17 seconds shorter
      1. Moon 3:38 PM -
      2. Waxing Gibbous62% 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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