Mostly Sunny

Today

Mostly Sunny

48°

/ 30°

Williamsport, Indiana

5 Day Forecast

Weather Forecast Accuracy Last Month (January)

Microsoft

84.59%

The Weather Channel

84.17%

AerisWeather

79.17%

Foreca

76.39%

Weatherbit

73.89%

NWS Digital Forecast

70.40%

Pirate Weather

69.72%

Open-Meteo

68.89%

World Weather Online

63.89%

OpenWeather

62.50%

Wetter.com

54.44%

Persistence

50.00%

Where is AccuWeather?

Weather Forecast Accuracy Last Year (2025)

Microsoft

84.29%

The Weather Channel

83.34%

AerisWeather

79.35%

Foreca

78.90%

Weatherbit

78.53%

NWS Digital Forecast

75.62%

Open-Meteo

69.35%

Pirate Weather

69.22%

World Weather Online

65.47%

Wetter.com

62.47%

OpenWeather

61.98%

Persistence

45.10%

ForecastAdvisor Fact

77.8% of Open-Meteo's high temperature forecasts for Williamsport were within 3 degrees of actual temperatures last month.

Share

Further accuracy analysis

©2005-2026 ForecastWatch® — Intellovations, LLC. All rights reserved. For personal use only.

Duplication prohibited without prior written permission.

Data provided by ForecastWatch.com.


Check out our ClimateWatch newsletter for climate trends and forecasts, groundbreaking innovations, and actionable tips.