Due to the crazy rain today, there have been mass closures around throughout London Underground.
As of 14:15, the following stations have been closed due to flooding:
Shepherd's Bush (Central Line)
Turnpike Lane
Victoria (Circle & District Lines only)
Paddington (Circle Line only)
Gants Hill
South Kensington
Kilburn
Tooting Broadway
Vauxhall
Turnham Green
Tooting Bec
Clapham Common
Colliers Wood
North Ealing (Westbound services only)
Hammersmith - Dist & Pic lines (Eastbound services only)
The following lines have been closed, also due to flooding:
Circle Line
District Line (between Earls Court and Embankment, between Turnham Green and Richmond and between High Street Kensington and Edgware Road)
Hammersmith & City Line (between Goldhawk Road and Hammersmith)
There are also delays due to signal failures on the Northern, Metropolitan, Jubilee, Picadilly & Victoria Lines.
If you're taking overground train services, Victoria Station is closed, and there are delays from almost all other stations.
Update: At 17:00, it's looking a little bit better out there, so with any luck your journey home shouldn't be too bad.
The following stations are still closed:
Shepherd's Bush (Central Line)
Colliers Wood
Paddington (Circle Line only)
Tooting Broadway
Gants Hill
The Circle Line is still closed, and the District Line is still suspended between Turnham Green and Richmond, and between High Street Kensington and Edgware Road.
It's probably a good idea to check the TfL website or checking train provider's website before heading out though, just to make sure you don't get taken by surprise.
First Great Western are advising you not to travel at all, so do check before heading to the station.