Morning:

"I think it's going to rain today. I'll take my umbrella," Alex said as he looked out the window.
"I'm going to meet my client at 10 AM. I hope the traffic won't be too bad."
"I will finish this report by lunchtime. My boss needs it urgently."

Afternoon:

"After work, I will go for a run. I need to exercise more."
"I'm going to order a pizza tonight. I'm too tired to cook."
"I think I will buy a new pair of shoes this weekend. The ones I have are worn out."

Evening:

"I will call my parents later. I haven't talked to them in a few days."
"I'm going to watch a movie tonight. I need to relax."
"I will start learning Spanish next month. I've always wanted to."

Análisis de los tiempos verbales:

Will: Se utiliza para:
    Hacer predicciones sobre el futuro (It's going to rain today).
    Expresar decisiones espontáneas (I will order a pizza tonight).
    Hablar de acciones futuras planificadas (I will call my parents later).
Going to: Se utiliza para:
    Hablar de planes o intenciones futuras (I'm going to meet my client).
    Hacer predicciones basadas en evidencias presentes (I think it's going to rain).