Winters in Saint-Priest are chilly, with temperatures often below freezing and averaging around 3-4°C. Frosts can occur throughout the season, while milder days allow for some warmth. Spring brings a steady rise in temperature, gradually warming up to averages of 10-13°C by May. Summers are warm to hot, with July and August seeing highs consistently above 20°C and occasional temperatures reaching over 30°C. Autumn is mild at first, but cools down significantly towards the end, with November and December experiencing temperatures similar to winter months.