Partly Sunny/Partly Cloudy

Today

Partly Sunny

32°

/ 18°

Mercer Island, Washington

5 Day Forecast

Weather Forecast Accuracy Last Month (November)

Microsoft

87.36%

The Weather Channel

86.94%

Foreca/Vaisala

86.67%

Weatherbit

83.14%

AccuWeather

82.50%

AerisWeather

79.17%

NWS Digital Forecast

76.11%

World Weather Online

76.11%

Pirate Weather

69.72%

OpenWeather

69.72%

Wetter

61.39%

Persistence

54.95%

Note: Weather Underground uses the same forecast as The Weather Channel and so is not shown

Weather Forecast Accuracy Last Year (2022)

The Weather Channel

88.24%

AccuWeather

86.43%

Foreca/Vaisala

85.73%

Microsoft

84.41%

AerisWeather

81.16%

Wetter

79.77%

NWS Digital Forecast

77.71%

Weatherbit

76.92%

OpenWeather

69.06%

World Weather Online

65.41%

Persistence

53.53%

ForecastAdvisor Fact

ForecastWatch.com is the largest provider of weather forecast accuracy statistics.

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