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: Thu, 06-Nov-2025 8:06am MST

Thornton
 
Today

Today: Mostly Sunny
Mostly Sunny
Friday

Friday: Mostly Sunny
Mostly Sunny
Saturday

Saturday: Sunny
Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Sunny
Sunny
Veterans
Day
Veterans Day: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
 
Hi 67 °F Hi 63 °F Hi 56 °F Hi 50 °F Hi 69 °F Hi 70 °F Hi 68 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
 
Lo 36 °F Lo 36 °F Lo 25 °F Lo 30 °F Lo 42 °F Lo 40 °F Lo 38 °F  

 

Today
 
Mostly sunny. High near 67, with temperatures falling to around 60 in the afternoon. West northwest wind 9 to 24 mph, with gusts as high as 37 mph.
Tonight
 
Mostly clear. Low around 36, with temperatures rising to around 38 overnight. South southeast wind 1 to 12 mph, with gusts as high as 17 mph.
Friday
 
Mostly sunny. High near 63, with temperatures falling to around 57 in the afternoon. Southwest wind around 7 mph, with gusts as high as 16 mph.
Friday Night
 
Mostly clear, with a low around 36. Northwest wind around 6 mph.
Saturday
 
Sunny, with a high near 56. North wind 7 to 12 mph, with gusts as high as 24 mph.
Saturday Night
 
Mostly clear, with a low around 25.
Sunday
 
Sunny, with a high near 50.
Sunday Night
 
Mostly clear, with a low around 30.
Monday
 
Sunny, with a high near 69.
Monday Night
 
Partly cloudy, with a low around 42.
Veterans Day
 
Mostly sunny, with a high near 70.
Tuesday Night
 
Partly cloudy, with a low around 40.
Wednesday
 
Mostly sunny, with a high near 68.
Wednesday Night
 
Partly cloudy, with a low around 38.

 

Forecast from NOAA-NWS for Thornton, CO.