The current weather forecast for the 2013 Formula One Brazilian Grand Prix is rain, with the wet stuff expected throughout the weekend. The good news is that the weather should improve slightly before Sunday but teams will almost certainly be facing a wet race.

Humidity on Sunday will be a high 73 percent, while wind speed should be low. Peak temperature during the race will only be around 75 degrees F (24 degrees C), which is relatively mild compared to the high temperatures experienced in Brazil recently.

As is often the case, the weather can be quite changeable in the area surrounding the Autodromo Jose Carlos Pace, where the Brazilian race is held. This gives teams a chance to play with their strategy and make up if rain ends up affecting the race.

In addition to the changeable weather, there are a number of other things to look out for in Brazil: despite being resurfaced a few years back the track is always quite bumpy, which makes it hard for the tires to find traction and increases the physical demands on the drivers. Pirelli has nominated its P Zero Orange hard and P Zero White medium tires for the weekend, which should be best suited to deal with the different demands of the track.

Sebastian Vettel’s win at the United States Grand Prix last weekend was the Red Bull Racing driver’s eighth straight win, a record for a single season. We very well could see the record fall again this weekend.

Going into the race, Sebastian Vettel’s points tally in the Drivers’ Championship is 372 points versus the 227 of Ferrari’s Fernando Alonso and 187 of Mercedes AMG’s Lewis Hamilton. In the Constructors’ Championship, Red Bull has 553, while Mercedes AMG retains its second place with 348 to Ferrari’s 333.

This being the last race of the 2013 F1 season means it's also the final race for Mark Webber, who is quitting F1 to join Porsche in its World Endurance Championship campaign. Ahead of this weekend’s race, the Australian released the following statement:

"I feel ready for Brazil and am looking forward to a bit of a different chapter in the future. There would be something wrong if I was disappointed to be finishing, because that's the reason I've made my decision. As a sportsman or woman that's why we all make those decisions - because in the end the fire is not quite what it was, and you've got to accept that. So the time is good for me. One to go and we'll put on a very good performance; I believe I can do that in Brazil. I'm happy I'm still driving pretty well, making my mark so to speak, but I've had my time. I've enjoyed it and achieved a few things, so let the guys do their thing in the future."


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