Note: This post is an update from a previous post. I have learned a bit since then and decided it was time for a refresh and to clean it up a little.

Add to your $Profile.CurrentUserAllHosts file so that you have a consistent prompt over all consoles.

Create the profile if it does not exist:

New-Item $Profile.CurrentUserAllHosts -Force -Confirm:$false

Then open the new file. 

Invoke-Item $Profile.CurrentUserAllHosts

Copy and paste the below into the file and save.

Hope you find this useful. I have included full comments for your learning.

# SHELL CUSTOMISATION: --------------------------------------------------------
# COMMON MODULES: -------------------------------------------------------------
Import-Module -Name Terminal-Icons


# HELPER FUNCTIONS: -----------------------------------------------------------
function Test-RunAsAdministrator {
    $Principal = [Security.Principal.WindowsPrincipal] ([Security.Principal.WindowsIdentity]::GetCurrent())
    if ($Principal.IsInRole([Security.Principal.WindowsBuiltInRole]"Administrator")) {
        return $true

    } else {
        return $false

    } # END if ($Principal.IsInRole([Security.Principal.WindowsBuiltInRole]"Administrator"))
} # END function Test-RunAsAdministrator

# SET-LOCATION:----------------------------------------------------------------
# Capture the current security principal context:
# If in Admin Mode set location to user profile for safety.
if (Test-RunAsAdministrator -eq $false) {
    Set-Location $env:USERPROFILE

} # if (Test-RunAsAdministrator -eq $true)

# MOTD BANNER: ----------------------------------------------------------------
$Context = $env:USERNAME + '@' + $Env:COMPUTERNAME
$SystemInfo = Get-CimInstance -Class CIM_OperatingSystem
$LastBootUpTime = $SystemInfo.LastBootUpTime
$Time = (Get-Date) - $LastBootUpTime
# Weather:
# Review https://github.com/chubin/wttr.in for docs and options.
# Check if running in the ISE:
if ($psIse) {
    # ISE displays incorrectly so use a one-liner format.
    $Weather = (Invoke-WebRequest wttr.in/Dunedin?format=3).Content
} else {

    $Weather = (Invoke-WebRequest wttr.in/Dunedin?0AQFn).Content
} # END if ($psIse)
$MOTD = @"
              _          _ _       ___      __
  /\/\   __ _| | _____  (_) |_    / _ \___ / _\  /\  /\
 /    \ / _`  | |/ / _ \ | | __|  / /_)/ _ \\ \  / /_/ /
/ /\/\ \ (_| |   <  __/ | | |_  / ___/ (_) |\ \/ __  /
\/    \/\__,_|_|\_\___| |_|\__| \/    \___/\__/\/ /_/

$Context | $($SystemInfo.Caption) $($SystemInfo.OSArchitecture)
Uptime: [ $($Time.Days) Days, $($Time.Hours) Hrs, $($Time.Minutes) Mins ]

$Weather

"@
Write-Host $MOTD -ForegroundColor DarkCyan

# CUSTOM PROMPT: --------------------------------------------------------------
function Prompt {
    <#
        RESULT:
        Colourised Prompt based on Admin Context or Location.
        TimeStamp | History ID | Location
        [ 07:32:34 ] [ 1 ]: C:\windows\System32
        ≥

    #>

    # DEFINE VARIABLES: -------------------------------------------------------
    $Location = ($ExecutionContext.SessionState.Path.CurrentLocation).Path
    $TimeStamp = (Get-Date -UFormat %T).ToString()
    $AdminMode = [ConsoleColor]::Yellow
    $UserMode = [ConsoleColor]::DarkGray
    $LocationWarning = [ConsoleColor]::Red
    $CmdPromptChar = (0x2265 -as [char]).ToString()

    # BUILD THE PROMPT: -------------------------------------------------------
    # Check PowerShell Debugging context:
    if ($PSDebugContext) {
        # Debug Context. Prefix the prompt with [DBG]:
        $Prompt = "[DBG] [ $TimeStamp ] [ $($MyInvocation.HistoryId) ]: $Location "

    } else {
        # Standard prompt:
        $Prompt = "[ $TimeStamp ] [ $($MyInvocation.HistoryId) ]: $Location "

    } # END if ($PSDebugContext)

    # Use console colour to indicate Admin/User mode and warn on working directory (as appropriate).
    # Check if in Windows System 32:
    if ($Location -eq "$env:SystemRoot\system32" ) {
        # Location Warning: Set the prompt warning colour and write the prompt to host:
        Write-Host $Prompt -ForegroundColor $LocationWarning

    } elseif (Test-RunAsAdministrator) {
        # Admin Mode: Set the prompt warning colour and write the prompt to host:
        Write-Host $Prompt -ForegroundColor $AdminMode

    } else {
        # User Mode: Set the prompt warning colour and write the prompt to host:
        Write-Host $Prompt -ForegroundColor $UserMode

    } # END if ($Location -eq "$env:SystemRoot\system32" )

    # Check if nested prompt.
    # Add the command prompt char to the next line for cleaner console and cleaner copy and paste.
    Write-Host ($(if ($NestedPromptLevel -ge 1) { ">> " } else { $CmdPromptChar + ' ' }) ) -NoNewline

    # PowerShell expects a string. Return empty string otherwise the prompt defaults to 'PS>'.
    Return ' '

} # END function Prompt #######################################################

A sample of the result:

Happy Coding!