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-Dec-2025 3:26am MST

Thornton
 
  Friday

Friday: Mostly Sunny
Mostly Sunny
Saturday

Saturday: Mostly Sunny then Slight Chance Light Rain
Mostly Sunny then Slight Chance Light Rain
Sunday

Sunday: Light Snow Likely
Light Snow Likely
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Sunny
Sunny
New Year's
Day
New Year's Day: Partly Sunny
Partly Sunny
  Hi 64 °F Hi 59 °F Hi 30 °F Hi 40 °F Hi 47 °F Hi 53 °F Hi 46 °F
 
Overnight

Overnight: Mostly Clear
Mostly Clear
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday
Night
Saturday Night: Rain And Snow Likely
Rain And Snow Likely
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Cloudy
Mostly Cloudy
 
Lo 38 °F Lo 35 °F Lo 21 °F Lo 12 °F Lo 19 °F Lo 24 °F Lo 26 °F  

 

Overnight
 
Mostly clear. Low around 38, with temperatures rising to around 41 overnight. Southwest wind around 10 mph, with gusts as high as 16 mph.
Friday
 
Mostly sunny. High near 64, with temperatures falling to around 56 in the afternoon. South southwest wind 6 to 9 mph.
Friday Night
 
Partly cloudy. Low around 35, with temperatures rising to around 37 overnight. South southwest wind around 7 mph.
Saturday
 
A slight chance of rain after 5pm. Mostly sunny, with a high near 59. West wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Saturday Night
 
A slight chance of rain before 8pm, then rain and snow likely. Mostly cloudy, with a low around 21. North northeast wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Sunday
 
Snow likely before 5pm. Partly sunny, with a high near 30. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
 
Mostly clear, with a low around 12.
Monday
 
Sunny, with a high near 40.
Monday Night
 
Mostly clear, with a low around 19.
Tuesday
 
Sunny, with a high near 47.
Tuesday Night
 
Mostly clear, with a low around 24.
Wednesday
 
Sunny, with a high near 53.
Wednesday Night
 
Mostly cloudy, with a low around 26.
New Year's Day
 
Partly sunny, with a high near 46.

 

Forecast from NOAA-NWS for Thornton, CO.