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: Fri, 26-Jun-2026 12:46pm MDT

Thornton
 
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Sunny
Sunny
Tuesday

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

Wednesday: Sunny
Sunny
Thursday

Thursday: Sunny
Sunny
 
Hi 87 °F Hi 93 °F Hi 94 °F Hi 90 °F Hi 90 °F Hi 92 °F Hi 95 °F  
 
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
 
Lo 61 °F Lo 61 °F Lo 61 °F Lo 58 °F Lo 58 °F Lo 60 °F Lo 62 °F  

Severe Thunderstorm Warning issued June 26 at 1:57PM MDT until June 26 at 2:45PM MDT
Special Weather Statement issued June 26 at 1:50PM MDT
 

This Afternoon
 
A slight chance of showers and thunderstorms before 5pm. Mostly sunny. High near 87, with temperatures falling to around 84 in the afternoon. East southeast wind around 8 mph. Chance of precipitation is 20%.
Tonight
 
Partly cloudy. Low around 61, with temperatures rising to around 64 overnight. South southeast wind around 9 mph.
Saturday
 
Mostly sunny, with a high near 93. South southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Saturday Night
 
Mostly clear, with a low around 61. Southwest wind 7 to 16 mph, with gusts as high as 25 mph.
Sunday
 
Sunny, with a high near 94. South wind 5 to 13 mph, with gusts as high as 24 mph.
Sunday Night
 
Mostly clear, with a low around 61.
Monday
 
Sunny, with a high near 90.
Monday Night
 
Mostly clear, with a low around 58.
Tuesday
 
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 90.
Tuesday Night
 
Partly cloudy, with a low around 58.
Wednesday
 
Sunny, with a high near 92.
Wednesday Night
 
Partly cloudy, with a low around 60.
Thursday
 
Sunny, with a high near 95.
Thursday Night
 
Partly cloudy, with a low around 62.

 

Forecast from NOAA-NWS for Thornton, CO.