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, 12-Jul-2025 4:01am MDT

Thornton
 
Today

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

Sunday: Sunny
Sunny
Monday

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

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

Wednesday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Thursday

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

Friday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
 
Hi 83 °F Hi 92 °F Hi 95 °F Hi 93 °F Hi 90 °F Hi 84 °F Hi 89 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Mostly Cloudy
Mostly Cloudy
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms then Mostly Cloudy
Chance Showers And T-Storms then Mostly Cloudy
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms then Mostly Cloudy
Chance Showers And T-Storms then Mostly Cloudy
Friday
Night
Friday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
 
Lo 61 °F Lo 65 °F Lo 61 °F Lo 60 °F Lo 61 °F Lo 60 °F Lo 61 °F  

Air Quality Alert
 

Today
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. East southeast wind around 7 mph. Chance of precipitation is 30%.
Tonight
 
Mostly clear, with a low around 61. South wind 3 to 7 mph.
Sunday
 
Sunny, with a high near 92. North northeast wind 2 to 9 mph, with gusts as high as 18 mph.
Sunday Night
 
Partly cloudy, with a low around 65. South southeast wind 5 to 10 mph, with gusts as high as 18 mph.
Monday
 
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 95. South wind 3 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
 
Mostly cloudy, with a low around 61.
Tuesday
 
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
Tuesday Night
 
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60.
Wednesday
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.
Wednesday Night
 
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 61.
Thursday
 
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 84.
Thursday Night
 
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60.
Friday
 
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.
Friday Night
 
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.

 

Forecast from NOAA-NWS for Thornton, CO.