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: Wed, 09-Jul-2025 4:01am MDT

Thornton
 
Today

Today: Sunny
Sunny
Thursday

Thursday: Partly Sunny then Chance Showers And Thunderstorms
Partly Sunny then Chance Showers And T-Storms
Friday

Friday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Saturday

Saturday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Monday

Monday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Tuesday

Tuesday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
 
Hi 101 °F Hi 95 °F Hi 85 °F Hi 86 °F Hi 94 °F Hi 92 °F Hi 91 °F  
 
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Friday
Night
Friday Night: Chance Showers And Thunderstorms then Mostly Cloudy
Chance Showers And T-Storms then Mostly Cloudy
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Tuesday
Night
Tuesday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
 
Lo 69 °F Lo 61 °F Lo 58 °F Lo 60 °F Lo 62 °F Lo 62 °F Lo 60 °F  

Heat Advisory
Air Quality Alert
 

Today
 
Sunny, with a high near 101. North northwest wind 5 to 12 mph, with gusts as high as 18 mph.
Tonight
 
Partly cloudy. Low around 69, with temperatures rising to around 71 overnight. West southwest wind 7 to 12 mph, with gusts as high as 18 mph.
Thursday
 
A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Partly sunny. High near 95, with temperatures falling to around 84 in the afternoon. West northwest wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Thursday Night
 
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 61. West northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. North northeast wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday 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 58. Chance of precipitation is 40%.
Saturday
 
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Saturday Night
 
Partly cloudy, with a low around 60.
Sunday
 
Mostly sunny, with a high near 94.
Sunday Night
 
Partly cloudy, with a low around 62.
Monday
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.
Monday Night
 
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62.
Tuesday
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
Tuesday Night
 
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60.

 

Forecast from NOAA-NWS for Thornton, CO.