Thornton Weather

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Thornton Weather is the city's longest serving and most reliable source for truly local weather and news. The site was created by a Thornton resident to provide residents of our area with information about OUR weather, not the weather in Denver or DIA.

* ThorntonWeather.com is not endorsed by or an official website of the City of Thornton.

09/10/2026

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Thursday to offer up above normal temperatures, dry conditions. We will see the mercury climb a bit today, ending up a g...
09/10/2026

Thursday to offer up above normal temperatures, dry conditions. We will see the mercury climb a bit today, ending up a good bit above normal. There will be lots of blue above and we will be dry. Sunny skies start us off and will continue throughout the daytime hours. Conditions will be calm and dry. High temperatures will top out close to the 90 degree mark. Tonight, it remains calm and dry under mostly clear skies. Lows will dip to the upper 50s. More: https://www.thorntonweather.com/

Are you ready for some football? The NFL season kicks off tonight but we have to wait until Monday for our Broncos. A go...
09/09/2026

Are you ready for some football? The NFL season kicks off tonight but we have to wait until Monday for our Broncos. A gorgeous evening right now after topping out at 85 degrees today. Tomorrow we will see highs in the upper 80s and remain dry.

Near normal temperatures, dry conditions for Thornton’s Wednesday. Maybe, just maybe, we are starting to see the first s...
09/09/2026

Near normal temperatures, dry conditions for Thornton’s Wednesday. Maybe, just maybe, we are starting to see the first signs of the changing of the seasons. Today we see reasonable temperatures but we will remain dry. Sunny skies start the day and will continue through most of it. Only a few clouds will be seen in late afternoon. Conditions will be calm and dry as we head for a high in the low to mid-80s. Tonight, it remains calm and we will have mostly clear skies above. Lows will dip to the mid-50s. More: https://www.thorntonweather.com/

Remember this? Six years ago today. Denver received its second earliest snowfall in history and Thornton got 2.2 inches ...
09/09/2026

Remember this? Six years ago today. Denver received its second earliest snowfall in history and Thornton got 2.2 inches of the white stuff. This followed record-setting heat and devastating wildfires just days before.

A little shower but only 0.01" in our rain bucket here. Those in south Thornton may have seen more. Tomorrow we will coo...
09/08/2026

A little shower but only 0.01" in our rain bucket here. Those in south Thornton may have seen more. Tomorrow we will cool down a bit with highs in the low to mid-80s and we will be dry.

Tuesday to offer temps a bit above average, a slight chance for a storm. A pretty good looking start to the abbreviated ...
09/08/2026

Tuesday to offer temps a bit above average, a slight chance for a storm. A pretty good looking start to the abbreviated workweek today. Mercury readings will be above average but not by a lot and we have just a slight chance for a PM thunderstorm. We start out with mostly sunny skies and those will be with us through the morning and into the start of the afternoon. We will then see a brief increase in cloud cover. High temperatures will be reaching the mid-80s. Late afternoon into the evening bring just a slight chance for an isolated thunderstorm but most activity will be south of us. This evening, storm chances will be done by about 9:00pm. Skies will then become clear and lows will dip to around 60 degrees. More: https://www.thorntonweather.com/

A preview of the workweek ahead... Yup, more above average temperatures on tap. There are a few, minimal chances for sh...
09/07/2026

A preview of the workweek ahead... Yup, more above average temperatures on tap. There are a few, minimal chances for showers / thunderstorms so maybe we will get lucky.

Labor Day weekend to feature above normal temps, minimal chances for precipitation. With the unofficial end of summer he...
09/04/2026

Labor Day weekend to feature above normal temps, minimal chances for precipitation. With the unofficial end of summer here, we will see more of the same conditions that have been with us through the season. Mercury readings will be above normal and there won’t be much of a chance for precipitation. Friday will be the warmest day with highs in the mid-90s. There will be just a slight chance for a PM thunderstorm. Friday night, lows will dip to the low 60s under partly cloudy skies. Saturday sees an increase in cloud cover but dry conditions. Highs will be in the low to mid-90s. Saturday night, partly cloudy skies will be above with lows in the mid-60s. Sunday will bring mostly sunny skies then slight chances for PM storms. Highs will again be in the low to mid-90s. Sunday night, it will be partly cloudy with lows in the mid-60s again. Labor Day continues the trend but with a bit better chance for some PM storms. Highs will be in the low 90s under partly sunny skies. Then the afternoon and evening may bring thunderstorms. Have a great weekend! More: https://www.thorntonweather.com/

Slightly toasty temps, dry conditions for Thornton’s Thursday. We were pleasantly surprised to have received a little bi...
09/03/2026

Slightly toasty temps, dry conditions for Thornton’s Thursday. We were pleasantly surprised to have received a little bit of rain last night. Today, we see temps rise and conditions will be dry. Sunny skies start us out and will be with us through the morning. This afternoon we will see some clouds but nothing too intrusive. High temperatures will be climbing toward the mid-90s making for a toasty day. Conditions will be dry. This evening, it will be partly clear and we may see some breezy winds. Then, overnight, skies will be clearing and lows will dip to the low 60s. More: https://www.thorntonweather.com/

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