Altadena, California

5 Day Forecast

Weather Forecast Accuracy Last Month (July)

Weatherbit

97.22%

Pirate Weather

96.11%

Foreca

95.83%

Microsoft

95.83%

AerisWeather

94.72%

The Weather Channel

93.89%

NWS Digital Forecast

91.39%

Persistence

79.17%

Wetter.com

75.00%

Open-Meteo

74.44%

World Weather Online

70.00%

OpenWeather

68.33%

Where is AccuWeather?

Weather Forecast Accuracy Last Year (2024)

The Weather Channel

91.57%

Microsoft

90.61%

Foreca

88.40%

Weatherbit

88.13%

AerisWeather

88.10%

NWS Digital Forecast

82.93%

Pirate Weather

81.27%

Open-Meteo

74.44%

World Weather Online

74.15%

Wetter.com

70.89%

Persistence

68.87%

OpenWeather

68.05%

ForecastAdvisor Fact

On average, Microsoft's low temperature forecasts for Altadena were off by 1.15 degrees last month.

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