British GP weather forecast: Rain threatens to shake up Silverstone race

After a warm and settled start to the race weekend, forecasts suggest conditions may change significantly by race day. Friday practice is expected to take place under bright skies, with temperatures around 24°C, giving teams a valuable opportunity to gather data in stable conditions.

But as the weekend progresses, cooler air, increasing cloud cover and a growing chance of showers are set to move over Northamptonshire.

By Sunday afternoon, there is a threat of rain. Forecasts point to temperatures dropping to around 18–19°C, with gusty winds and the chance of showers rising.

The 2008 British GP at Silverstone is one of the clearest examples of rain completely shaping a race outcome. Heavy rain and standing water made conditions extremely difficult, with several drivers spinning or struggling for grip.

Lewis Hamilton, however, was in a class of his own. Driving for McLaren, he judged the conditions superbly and won by more than a minute from Nick Heidfeld and Rubens Barrichello. Ferrari, particularly Felipe Massa, had a disastrous afternoon in the wet.

The result was hugely significant for the championship, with Hamilton’s win putting him level on points with Massa and Kimi Raikkonen. It remains one of the greatest wet-weather drives in Formula 1 history.

The 1998 British GP was heavily affected by rain and remains one of the most controversial Silverstone races. Wet conditions triggered multiple incidents and safety car periods, disrupting the order and strategy.

Michael Schumacher was given a stop-go penalty late in the race, but because of the timing and the unusual pit-lane procedure, Ferrari served it at the end of the final lap. Schumacher crossed the finish line in the pit lane and was classified as the winner.

Without the rain, the sequence of incidents, safety cars and penalty confusion would likely never have unfolded in the same way. It was a race where the weather directly contributed to both the result and the controversy.

The 1988 British GP was another race where wet conditions overturned expectations. McLaren dominated the season, but in the rain at Silverstone, Ayrton Senna’s skill became the decisive factor.

Senna won from Nigel Mansell, who delivered a superb performance for Williams in front of his home crowd despite the team not being among the season’s strongest packages. Alain Prost, Senna’s McLaren teammate, struggled badly in the wet and eventually retired, saying the conditions were too dangerous.

The rain played a major role in separating the drivers and allowed Mansell to take an unlikely second place, while Senna further enhanced his reputation as a wet-weather specialist.

The 1975 British GP at Silverstone was dramatically changed by a sudden rainstorm late in the race. The weather had been changeable throughout, but conditions worsened sharply near the end, causing several cars to crash almost simultaneously.

A heavy downpour hit parts of the circuit, especially around Club Corner, where drivers on dry tyres were caught out. Three out of the top four cars (Jody Scheckter, James Hunt, and Mark Donohue), crashed in the same corner, bringing an early finish to the race.

Emerson Fittipaldi was declared the winner for McLaren. The result was shaped by the timing of the storm and the decision to stop the race, making it one of the most dramatic weather-affected British Grands Prix.

The 1968 British GP at Brands Hatch was affected by wet and slippery conditions, which helped produce one of the great surprise victories in Formula 1 history.

Jo Siffert, driving a privateer Rob Walker-entered Lotus, mastered the difficult conditions and held off Chris Amon’s Ferrari to take his first Grand Prix win. The mixed weather and tricky track surface made consistency and control more important than outright machinery advantage.

Siffert’s victory was significant because it was the last win for a true privateer entrant in Formula 1. The conditions helped create an unpredictable race and a historic result.