The United States Grand Prix weekend could be affected by rain again, though not as badly as it was two years ago.
Persistent rain throughout Friday and Saturday in 2015 meant second practice had to be cancelled, qualifying was postponed to Sunday and Q3 could not be run at all. The race began on a damp track which then dried out.
This time drivers can expect dry running during the build-up to the race but the main event itself is at greatest risk of rain. A low pressure band arriving from the north-west is expected to bring rain with it on Sunday morning, but its progress across the country only needs to slow a little for it to arrive in time for the 2pm start.
There is a low chance of occasional showers during Friday and Saturday. Air temperatures will fall just short of 30C but on race day the cooler conditions will bring that down to the mid-twenties.
Lower track temperatures have tended to favour Mercedes so far this year, while Red Bull and McLaren are likely to be the most encouraged by the prospect of rain.
Location of Circuit of the Americas
See the location of every race on the 2017 F1 calendar here:
2017 United States Grand Prix
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