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Mercer Island, WA 98040   Weather, Extended Forecast and Hour-by-Hour Forecast

Weather Conditions

59°
CLOUDY

Updated: 4:07 PM

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7-day Forecast for Mercer Island

  • Daytime
  • Nighttime
04/20
Sun
60°
Mostly cloudy
Feels Like: 65°
Winds: 6mph SSE
46° Feels like: 48°
Winds: 2mph N
04/21
Mon
63°
Rather cloudy with a shower in the afternoon
Feels Like: 68°
Winds: 4mph W
46° Feels like: 45°
Winds: 4mph SSE
04/22
Tue
55°
Mostly cloudy with a shower
Feels Like: 57°
Winds: 6mph SSW
43° Feels like: 39°
Winds: 5mph S
04/23
Wed
55°
Mostly cloudy with a shower in spots
Feels Like: 63°
Winds: 4mph SSE
45° Feels like: 39°
Winds: 6mph SSE
04/24
Thu
57°
Periods of rain
Feels Like: 56°
Winds: 9mph S
45° Feels like: 46°
Winds: 6mph SSW
04/25
Fri
57°
Mostly cloudy with a couple of showers
Feels Like: 66°
Winds: 3mph WNW
43° Feels like: 43°
Winds: 3mph NNW
04/26
Sat
58°
Times of clouds and sun
Feels Like: 63°
Winds: 5mph NE
43° Feels like: 45°
Winds: 3mph SSE

24 Hour Forecast for Mercer Island

  • 1pm
  • 2pm
  • 3pm
  • 4pm
  • 5pm
  • 6pm
  • Conditions
  • Temperature
  • 55°
  • 57°
  • 59°
  • 59°
  • 60°
  • 60°
  • Cloud Cover
  • 83%
  • 84%
  • 89%
  • 94%
  • 95%
  • 94%
  • Feels Like
  • 60°
  • 63°
  • 65°
  • 65°
  • 63°
  • 62°
  • Dew Point
  • 40°
  • 40°
  • 39°
  • 38°
  • 38°
  • 38°
  • Humidity
  • 57%
  • 52%
  • 48%
  • 45%
  • 44%
  • 44%
  • Wind Direction
  • SE
  • SE
  • SE
  • SSE
  • W
  • NW
  • Wind Speed
  • 6
  • 6
  • 4
  • 3
  • 2
  • 2
  • Precipitation
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0