GribApi.NET is a C# library for reading and writing GRIB 1 and 2 files. It wraps the European Centre for Medium Range Weather Forecasting's powerful C library, ecCodes. NOTE: This library requires the 2015 MSVC redistributable package (https://www.microsoft.com/en-us/download/details.aspx?id=48145)
OpenWeatherMap based async .NET API
please see more info here https://github.com/awesomio/Weather.NET
Simple .NET Weather API, currently gets the current weather, One Call API and One Call API historical weather data
Class library implementing advanced mathematical algorithms, transforms, and time series manipulations. Implementations favour simplicity and correctness.