Sgt Maj Jennings was a soldier in the 2nd Battalion Royal Warwickshire Regiment, which surrendered to German forces along with troops from the Cheshire Regiment, the Royal Artillery and French troops.
They were taken to a barn in La Plaine au Bois near Wormhout and Esquelbecq in France on 28 May 1940, where SS soldiers threw in stick grenades.
Sgt Maj Jennings threw himself on top of one of the grenades to try to save other soldiers.
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It will be a grey start to Monday with patchy rain and drizzle moving in from the south.
Perhaps locally bright at first, but increasing cloud will bring periods of light rain from the south. Winds generally light.
Tonight will stay dry for most. There will be clear spells this evening leading to a chilly night to come.