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Thornton, Colorado Weather:
Sunday, May 18, 2025
Stormy WeatherStormy weather, thunderstorms.
Day 66°
Night 46°
Precipitation 70 %
Wind 12 mph
UV Index (0 - 11+) 6

Weather Forecast History

Last Year's Weather on This Day (May 18, 2024)

Day

75°

Night

54°