66°F

Thornton, Colorado, USA

Updated: 28-Jun-2025 7:30am

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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, 28-Jun-2025 4:01am MDT

Thornton

	Saturday Sunny	Sunday Sunny then Chance Showers And T-Storms	Monday Partly Sunny then Chance Showers And T-Storms	Tuesday Mostly Sunny then Slight Chance Showers And T-Storms	Wednesday Mostly Sunny	Thursday Mostly Sunny then Chance Showers And T-Storms	Independence Day Partly Sunny then Chance Showers And T-Storms
	Hi 96 °F	Hi 89 °F	Hi 83 °F	Hi 89 °F	Hi 92 °F	Hi 91 °F	Hi 88 °F

Overnight Mostly Clear	Saturday Night Partly Cloudy	Sunday Night Chance Showers And T-Storms then Partly Cloudy	Monday Night Slight Chance Showers And T-Storms then Mostly Cloudy	Tuesday Night Partly Cloudy	Wednesday Night Partly Cloudy	Thursday Night Chance Showers And T-Storms then Mostly Cloudy
Lo 61 °F	Lo 62 °F	Lo 59 °F	Lo 59 °F	Lo 60 °F	Lo 63 °F	Lo 64 °F

Overnight	Mostly clear. Low around 61, with temperatures rising to around 64 overnight. Southwest wind around 6 mph.
Saturday	Sunny. High near 96, with temperatures falling to around 94 in the afternoon. Southwest wind 3 to 8 mph.
Saturday Night	Partly cloudy. Low around 62, with temperatures rising to around 64 overnight. West wind 5 to 8 mph, with gusts as high as 16 mph.
Sunday	A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Sunny, with a high near 89. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday Night	A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 59. North northeast wind 2 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Monday	A chance of showers and thunderstorms after noon. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Monday Night	A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59.
Tuesday	A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.
Tuesday Night	Partly cloudy, with a low around 60.
Wednesday	Mostly sunny, with a high near 92.
Wednesday Night	Partly cloudy, with a low around 63.
Thursday	A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
Thursday Night	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64.
Independence Day	A chance of showers and thunderstorms after noon. Partly sunny, with a high near 88.

Forecast from NOAA-NWS for Thornton, CO.