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Thornton, Colorado, USA

Updated: 24-May-2025 4:15pm

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Forecast for Thornton, Colorado

Today's Weather Story
48 Hour Graphical Forecast

National Weather Service Forecast for: Thornton, CO
Issued by: National Weather Service Denver/Boulder, CO

Updated: Sat, 24-May-2025 2:27pm MDT

Thornton

This Afternoon Showers And T-Storms Likely	Sunday Showers And T-Storms	Memorial Day Showers And T-Storms	Tuesday Partly Sunny then Chance Showers And T-Storms	Wednesday Mostly Cloudy then Showers And T-Storms Likely	Thursday Partly Sunny then Chance Showers And T-Storms	Friday Mostly Sunny then Chance Showers And T-Storms
Hi 67 °F	Hi 63 °F	Hi 63 °F	Hi 73 °F	Hi 67 °F	Hi 69 °F	Hi 77 °F

Tonight Showers And T-Storms Likely	Sunday Night Showers And T-Storms	Monday Night Chance Showers And T-Storms then Mostly Cloudy	Tuesday Night Chance Showers And T-Storms then Mostly Cloudy	Wednesday Night Chance Showers And T-Storms then Mostly Cloudy	Thursday Night Slight Chance Showers And T-Storms then Mostly Cloudy	Friday Night Slight Chance Showers And T-Storms then Mostly Cloudy
Lo 51 °F	Lo 49 °F	Lo 48 °F	Lo 49 °F	Lo 50 °F	Lo 50 °F	Lo 52 °F

This Afternoon	Showers and thunderstorms likely. Mostly cloudy. High near 67, with temperatures falling to around 61 in the afternoon. East northeast wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Tonight	Showers and thunderstorms likely before 9pm, then showers and thunderstorms likely. Cloudy, with a low around 51. East northeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday	A chance of rain showers before noon, then showers and thunderstorms. Cloudy. High near 63, with temperatures falling to around 58 in the afternoon. East northeast wind 6 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Sunday Night	Showers and thunderstorms. Cloudy, with a low around 49. Northeast wind 5 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Memorial Day	A chance of rain showers before noon, then showers and thunderstorms. Cloudy, with a high near 63. North northeast wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 80%.
Monday Night	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Tuesday	A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 73.
Tuesday Night	A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 49.
Wednesday	Showers and thunderstorms likely after noon. Mostly cloudy, with a high near 67.
Wednesday Night	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.
Thursday	A chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.
Thursday Night	A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.
Friday	A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Friday Night	A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.

Forecast from NOAA-NWS for Thornton, CO.