Meteoalarm
Provides warnings for extreme weather in all European countries.

Space Weather
Provides news and information about meteor showers, solar flares, auroras, and near-Earth asteroids.

Tropical Storm Risk (TSR)
Gives information and maps about tropical storm activity worlwide.

Windy
Displays wind and weather patterns, forecasts on a map.

wttr.in
A console-oriented weather forecast service.