Short-term effects. When a person smokes marijuana, THC quickly passes from the lungs into the bloodstream. The blood carries the chemical to the brain and other organs throughout the body. The body absorbs THC more slowly when the person eats or drinks it. In that case, the user generally feels the effects after 30 minutes to 1 hour.
As the season progresses, the earth's axis increases it's tilt towards the sun in preparation for summer. When spring ends in the northern hemisphere, we have the summer solstice ie the beginning of summer, which is the longest day of the year and when the earth's axis is tilted towards the sun.
Weather forecast. Nowadays the short-term weather can be predicted fairly accurately. For the long term this is impossible as the eventual weather conditions are determined by a great many different factors. A large chance of snow is not a guarantee for snow, the same goes for sunshine, precipitation and drought. However by checking out climate data you can see what the chances are on particular weather conditions and take them into account while planning your holiday or another trip to a particular area.