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, 08-Jul-2025 4:01am MDT

Thornton
 
  Tuesday

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

Wednesday: Sunny
Sunny
Thursday

Thursday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight 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
Mostly Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
  Hi 95 °F Hi 100 °F Hi 96 °F Hi 86 °F Hi 85 °F Hi 94 °F Hi 94 °F
 
Overnight

Overnight: Clear
Clear
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday
Night
Friday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
 
Lo 60 °F Lo 62 °F Lo 68 °F Lo 62 °F Lo 58 °F Lo 60 °F Lo 62 °F  

Heat Advisory
 

Overnight
 
Clear. Low around 60, with temperatures rising to around 62 overnight. West southwest wind around 5 mph.
Tuesday
 
A slight chance of rain showers between 2pm and 3pm, then a slight chance of showers and thunderstorms. Sunny. High near 95, with temperatures falling to around 93 in the afternoon. Southeast wind 3 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Tuesday Night
 
Mostly clear. Low around 62, with temperatures rising to around 64 overnight. South southeast wind 6 to 12 mph, with gusts as high as 18 mph.
Wednesday
 
Sunny, with a high near 100. South southeast wind 3 to 9 mph, with gusts as high as 18 mph.
Wednesday Night
 
Partly cloudy, with a low around 68. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Thursday
 
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96. Chance of precipitation is 20%.
Thursday Night
 
Mostly clear, with a low around 62.
Friday
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Friday Night
 
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Saturday
 
Mostly sunny, with a high near 85.
Saturday Night
 
Partly cloudy, with a low around 60.
Sunday
 
Sunny, with a high near 94.
Sunday Night
 
Partly cloudy, with a low around 62.
Monday
 
Mostly sunny, with a high near 94.

 

Forecast from NOAA-NWS for Thornton, CO.