This is the 12678th most frequent German word.
wheater
The German word "Wheater" does not exist. You might mean "Wetter," which translates to "weather" in English.
Here, 'Wetter' means 'weather' as a noun describing the atmospheric conditions.
Das Wetter ist heute sonnig.
The weather is sunny today.
In this context, 'ob das Wetter' introduces a conditional phrase, pondering the state of the weather, and the sentence includes a play on 'whether' and 'weather' in translation explantion.
Ich frage mich, ob das Wetter morgen regnerisch sein wird.
I wonder whether the weather will be rainy tomorrow.
'Wetter' here is used as a subject of the verb 'forecasts', denoting the meteorological conditions.