82°F

Thornton, Colorado, USA

Updated: 26-May-2026 3:05pm

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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: Tue, 26-May-2026 12:46pm MDT

Thornton

This Afternoon Slight Chance Showers And T-Storms	Wednesday Showers And T-Storms Likely	Thursday Mostly Cloudy then Chance Showers And T-Storms	Friday Partly Sunny then Chance Showers And T-Storms	Saturday Mostly Sunny then Chance Showers And T-Storms	Sunday Mostly Sunny then Chance Showers And T-Storms	Monday Partly Sunny then Showers And T-Storms Likely
Hi 81 °F	Hi 75 °F	Hi 80 °F	Hi 82 °F	Hi 81 °F	Hi 81 °F	Hi 80 °F

Tonight Slight Chance Rain Showers then Mostly Cloudy	Wednesday Night Chance Showers And T-Storms then Mostly Cloudy	Thursday Night Chance Showers And T-Storms then Mostly Cloudy	Friday Night Chance Showers And T-Storms then Mostly Cloudy	Saturday Night Chance Showers And T-Storms then Partly Cloudy	Sunday Night Chance Showers And T-Storms then Mostly Cloudy	Monday Night Chance Showers And T-Storms then Mostly Cloudy
Lo 55 °F	Lo 54 °F	Lo 54 °F	Lo 54 °F	Lo 52 °F	Lo 52 °F	Lo 52 °F

This Afternoon	A slight chance of showers and thunderstorms after 3pm. Partly sunny. High near 81, with temperatures falling to around 78 in the afternoon. South southeast wind around 22 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Tonight	A slight chance of rain showers between 9pm and midnight. Mostly cloudy. Low around 55, with temperatures rising to around 58 overnight. South wind 3 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Wednesday	A chance of rain showers between 9am and noon, then showers and thunderstorms likely. Cloudy. High near 75, with temperatures falling to around 70 in the afternoon. South wind 2 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%.
Wednesday Night	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. South southeast wind 2 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 40%.
Thursday	A chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 80. East wind 2 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Thursday 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 54. Chance of precipitation is 40%.
Friday	A chance of showers and thunderstorms after noon. Partly sunny, with a high near 82.
Friday Night	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54.
Saturday	A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Saturday Night	A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.
Sunday	A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Sunday Night	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.
Monday	Showers and thunderstorms likely after noon. Partly sunny, with a high near 80.
Monday Night	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.

Forecast from NOAA-NWS for Thornton, CO.