Actually it was the previous test at Edgbaston that had more to do with the atmospheric conditions than the Lords test. The test at Birmingham recorded one of the highest degree of swing movement for matches that happened in England in the last decade.
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The difficult batting conditions at the Lords had to do with a combination of a damp wicket plus atmospheric conditions, but mostly the wicket itself as it was more about exaggerated seam movement off the wicket than swing movement. What the atmosphere did was that the dark gloomy and rainy sky for most of the first 2 days prevented the dampness in the wicket from drying out under the sun. 
<blockquote class="twitter-tweet"><p lang="en" dir="ltr">Lord's 2018 ranked 13th for most seam movement from a pitch in England since 2006, and 67th for most swing. It wasn't purely down to the weather. England produce helpful wickets when they think it'll help them too - it would be incompetent, negligent even, if they didn't. <a href="https://t.co/xoJGFIsEmL">https://t.co/xoJGFIsEmL</a></p>— Ben Jones (@benjonescricket) <a href="https://twitter.com/benjonescricket/status/1360839883087097856?ref_src=twsrc%5Etfw">February 14, 2021</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>