Siri doesn’t answer the first time but does the second time.

Go to Settings/Weather and change Location to Always.

Hello Roundtheworld80,

Thanks for choosing the Apple Support Communities. If Hey Siri isn't working properly, we suggest following the steps below to resolve the issue.

If "Hey Siri" isn't working on your iPhone or iPad - Apple Support

"If "Hey Siri" isn't working on your iPhone

Check a few settings on your iPhone to make sure that Siri is set up to listen and respond to your requests.

Check if "Hey Siri" is turned on

1. Go to Settings.
2. Tap Siri & Search.
3. From here, make sure the following settings are turned on:

• Listen for "Hey Siri"
• Allow Siri When Locked

Set up Siri to recognize your voice

1. Go to Settings.
2. Tap Siri & Search.
3. Turn off Listen for "Hey Siri," then turn it back on.
4. When the Set Up "Hey Siri" screen appears, tap Continue.
5. Say each command that you see on your screen.
6. Tap Done.

If Siri stops responding

1. Go to Settings.
2. Tap Siri & Search.
3. Tap Siri Responses. 
4. Tap Prefer Spoken Responses to hear Siri speak responses, even when Silent mode is turned on.

Get more help with Siri

• Is the wrong device responding to "Hey Siri?" Learn how "Hey Siri" works with multiple devices.
• Learn how to change the volume of Siri's voice.
• If Siri activates when you press the side or Home button, but doesn't activate when you say "Hey Siri," contact Apple Support.

Siri availability, features, and commands varies by language, and country and region. Learn which Siri features are supported in your country or region."

We hope this helps.

Cheers!