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You probably already ask Siri "will it rain today?" — that's AI weather in its most boring form. The useful version is asking the right questions in the right way. Here are six concrete prompts, plus the exact taps and clicks that turn your existing AI assistant into a weekly weather-and-energy planner.
Before you start — what you'll need
- An AI assistant with live internet access: ChatGPT (free works for simple questions; Plus is better for live data), Gemini, or your phone's built-in voice assistant (Siri on iPhone, Google Assistant on Android).
- A free account with whichever AI assistant you choose — sign-up takes about a minute with an email address.
- Internet connection on your phone or computer.
- Your suburb or postcode so the assistant knows where you live. Optional for voice assistants (they use your location if you've allowed it).
Step 1 — Open your AI assistant and ask a basic weather-planning question
Find the ChatGPT or Gemini app on your phone, or open chat.openai.com or gemini.google.com in a browser. Tap the message box at the bottom of the screen (it usually says "Message…" or "Ask…") and type your first weather-planning question. Press the up-arrow or return key to send.
You'll see a short written answer that mixes the forecast with practical advice — not just numbers, but suggestions you can act on. For example, it might say "Tuesday looks dry and breezy, good for washing" instead of just "30% chance of rain."
💬 Copy this prompt: "What's the weather going to be like this week in [your suburb], and when is the best day to hang washing outside?"
You'll know it worked when the response mentions specific days AND gives a recommendation, not just a forecast.
Step 2 — Get specific about timing your big chores
Now try a more pointed prompt. Ask about WHEN to run your energy-hungry appliances, not just whether it'll rain. The assistant will combine the forecast with general knowledge about when energy demand is lower.
You'll see suggestions like "Run the dishwasher Wednesday night, when demand is lower and the evening is mild." If you don't like the answer, just ask a follow-up — that's the advantage of a chat. Push back if it hedges.
💬 Copy this prompt: "When is the cheapest time this week to run the washing machine and dishwasher in [your state], based on weather and typical energy demand?"
You'll know it worked when the assistant names specific days AND times, not just "it depends."
Step 3 — Ask about time-of-use energy pricing
Time-of-use pricing is when your electricity costs more during peak hours (usually weekday evenings) and less overnight or on weekends. Many American energy plans use this — check your bill. Type a question that mentions your plan and the assistant will explain when power costs the most this week, based on the forecast.
You'll see plain-English advice about peak vs off-peak hours, plus a hint about how the weather affects your bill — hot days push afternoon peak demand higher.
💬 Copy this prompt: "I have a time-of-use electricity plan in [your state]. Based on this week's weather, when should I run the air conditioner and pool pump to keep costs down?"
You'll know it worked when the response names specific hours (like "after 9pm or before 3pm") and explains why.
Step 4 — Plan an outdoor activity with full detail
This is where AI weather planning really shines. Ask about a specific activity at a specific place, and the assistant will pull together wind, rain, UV and temperature forecasts.
You'll see a paragraph that covers what to wear, what to bring and whether to reschedule. Think of it as a meteorologist in your pocket — one you can ask follow-up questions of without feeling silly.
💬 Copy this prompt: "Is Saturday morning a good time for a 10km bushwalk near [your city]? Tell me about rain, wind, UV and temperature."
You'll know it worked when the response covers at least three weather factors AND gives a clear "go" or "reschedule" verdict.
Step 5 — Use a voice assistant for hands-free weather checks
Skip the typing when your hands are full — driving, cooking, or wrestling a sheet onto the line. On iPhone, hold the side button or say "Hey Siri"; on Android, say "Hey Google". Ask your weather question out loud.
You'll hear the forecast and any advice spoken back. Perfect for quick "should I water the garden tonight?" or "do I need a jacket this morning?" checks.
💬 Try saying: "Hey Siri, when's the next dry spell in [your suburb] this week?"
You'll know it worked when you hear a spoken answer that mentions specific days, not just "it might rain."
Step 6 — Save your best prompt for repeated use
Once you've found a prompt that gives useful answers, save it so you don't retype it every week. Open the Notes app on your phone (or any notes app you already use), paste in your favorite prompt, and title the note "Weekly weather plan." Next Sunday, open the note, copy the text, paste it into ChatGPT or Gemini, and you're done.
You'll see your saved note ready to copy in two taps. Each week gets quicker — the question stays the same, only the dates change.
💬 Saved prompt to reuse: "Give me this week's weather in [your suburb] and the best times to run the washing machine, dishwasher and pool pump."
You'll know it worked when you can get a full weather-and-energy plan in under 30 seconds, every week, with almost no typing.
Common mistakes
Asking only "Will it rain?" instead of asking for a plan. You'll get a one-word answer. Always include WHAT you're planning to do — the assistant needs a goal to give useful advice.
Forgetting to mention your location. The assistant doesn't know where you are unless you tell it. Include your suburb or postcode in every weather prompt.
Trusting the first answer without asking a follow-up. AI assistants sometimes hedge with "it depends." Push back with "Give me one specific recommendation, even if it's a guess" — you'll get a clearer answer.
Assuming the AI has access to your actual smart meter or energy account. Most assistants don't — they work from public weather data and general energy knowledge. For real-time usage data, check your energy provider's app separately.
Speaking too fast or mumbling the wake phrase. Siri and Google Assistant often miss you on the first try. Speak at normal pace and pause slightly after the wake word.