Thornton, Colorado, USA
UpdatedThu, 17-Aug-2017 3:30am MDT 


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Thornton set to enjoy a very spring-like weekend

Friday, March 3rd, 2017 4:45am MDT

The unseasonably warm weather of recent weeks returns for this weekend. We will enjoy three days with lots of sun and very mild temperatures.

For today we start out with clear skies and other than a cloud here and there, the sun will rule. Temperatures will be climbing toward a high in the mid-60s, well above the 51 degree average for the date. Overall conditions will be dry and calm. Overnight tonight temperatures will be dropping toward the freezing mark.

Saturday looks to be quite similar to today but with even higher mercury readings. Lots of sun will be above and conditions calm and dry as we head toward a high near the 70 degree mark. Overnight Saturday night into Sunday morning the temperatures will dip to the mid-30s.

We close out the weekend on Sunday with the warmest temperatures of the period. Highs will be in the low-70s. A few more clouds will be possible and the late afternoon and evening have the potential to bring some breezy winds.

Have a great weekend!

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Thornton’s March weather preview: Snow and warmer temps typical for the month

Thursday, March 2nd, 2017 10:52am MDT

The month of February was extraordinarily dry and warm for Thornton. Will March bring any relief, particularly on the precipitation front? History would say yes but long range forecasts do not look good.

March usually offers healthy snowfall giving us an opportunity to add to those numbers.  While there is good snow potential in March, the month also typically brings much warmer temperatures.

March is historically Denver’s snowiest month and brings about 20% of our annual snowfall.  Heavy, wet spring snow storms can oftentimes bring the entire month’s snowfall total in one monstrous snow.

We also start the transition to spring and severe weather season and the month typically brings our first thunderstorms of the year.  Temperatures climb throughout the month and by the end our average daytime highs are near 60 degrees.

For a complete look at what lies ahead in March 2016, click here.

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A sunny, seasonal day Thursday in Thornton

Thursday, March 2nd, 2017 5:02am MDT

We will be enjoying a very pleasant, typical early March day today. Look for a healthy dose of sun above and temperatures right near average.

The day starts with sunny skies and while there will be a few clouds this afternoon, they won’t intrude much at all. Winds will be relatively light and out of the west. Temperatures will top out right near the average for today’s date of 50 degrees, perhaps a degree or two warmer.

Tonight, it will be partly cloudy and we will go for an overnight low in the mid-20s.

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Wednesday brings dry conditions, some breezy winds, chilly temps

Wednesday, March 1st, 2017 5:17am MDT

Our latest storm system has moved out after delivering a brief shot of snow late in the day yesterday. In its wake temperatures are going to remain chilly and we will see some breezy winds but there will be a return of sunny skies.

We start out the day with clear skies and other than a few clouds later, there will be plenty of sun throughout. Temperatures are starting out cold and while we will warm up, it will be cooler than normal. Look for a high today of around 42 degrees.

Winds are going to be a bit tricky today with the foothills bearing the brunt of them. There will be periods our way though when it will be breezy with gusts to 25mph being possible.

Live gauges here.

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Wintry weather returns for Thornton’s Tuesday

Tuesday, February 28th, 2017 5:33am MDT

Mother Nature mixes things up for us a bit today with a brief return to cold and some light snow. The weather system won’t be anything extraordinary though and by this weekend we will see a return to spring-like conditions.

For today cloudy skies above will be the general rule before some clear is seen in the late evening and overnight hours. Temperatures will be chilly with highs only expected to reach the upper 30s. By mid to late afternoon some breezy winds will be thrown into the mix and last through the overnight hours.

In terms of snowfall, a few flurries may be seen this morning. Best chances for snow come from about 11:00am through 7:00pm. Right now we expect less than an inch in our area however we are going to need to keep watch on the possibility of stronger bands of snow setting up.

Looking ahead, we will see a gradual warmup Wednesday and Thursday then mercury readings approach 60 on Friday and well into the 60s Saturday and Sunday. Get more details in the extended forecast here.

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Humans are responsible for the vast majority of wildfires in the U.S.

Monday, February 27th, 2017 6:53am MDT

Only you can prevent forest fires. For real. Forest Service Northern Region Wildfire Increasingly in the United States, wildfires are caused by humans, not lightning. In the past 20 years, thousands of wildfires have raged across the United States—and most of them are our fault. In a study published Monday in the Proceedings of the National… » Click here to read the rest of Humans are responsible for the vast majority of wildfires in the U.S.

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Thornton’s Monday brings seasonal temps, breezy winds

Monday, February 27th, 2017 5:19am MDT

Following on our chilly weekend we will warm up to levels near or just above normal. An approaching trough will influence things this afternoon in the form of increased clouds and breezy winds.

We start out the day with mostly clear skies and cold temperatures in the upper teens. We’ll warm up to a comfortable high of 52 degrees.

Early afternoon will see clouds start increasing and by sunset we will be seeing only partly sunny skies. Winds will also be picking up after noon with gusts to 25mph or so being possible into the evening.

Overnight tonight mostly cloudy skies will be above and we will drop to a low in the low 20s.

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February 26 to March 4: This Week in Denver Weather History

Sunday, February 26th, 2017 6:18pm MDT
This Week In Denver Weather History

February 26 to March 4: This Week in Denver Weather History

In the past week Denver has seen its fair share of wind and snow and looking back at this week in Denver weather history, we see both are common conditions.

From the National Weather Service:


In 1960…heavy snowfall of 6.1 inches at Stapleton Airport on the 22nd and 23rd marked the beginning of a protracted cold spell which lasted until the end of the month. The cloudy… Cold weather was accompanied by occasional light snow or flurries and fog. New record low temperatures for the dates were set on the 24th thru the 29th with the lowest temperature of 11 degrees below zero on the 28th. The seven consecutive days of low temperatures of zero or below had been exceeded in duration only 4 times previously. New low maximum temperatures for the dates were set on the 23rd… 24th…and the 26th thru the 29th with the lowest maximum temperature of 8 degrees recorded on the 26th.


In 1971…a wind gust to 100 mph was recorded in Boulder at the National Center for Atmospheric Research. The cold west winds gusted to 53 mph in downtown Boulder. No damage was reported. Northwest winds gusted to 31 mph on the 25th and to 38 mph on the 26th at Stapleton International Airport.

In 1984…a heavy snow storm left 1 to 2 feet of new snow in the foothills west of Denver. I-70 was closed…stranding skiers returning from the mountains. Most had to spend several hours in Idaho Springs. The snow spread over metro Denver with 9 inches at Littleton…Castle Rock…and Boulder and up to 5 inches in Aurora and Denver. Snowfall totaled only 3.6 inches at Stapleton International Airport where north winds gusted to 31 mph.


In 1884…heavy snowfall totaled 6.0 inches in downtown Denver.

In 1908…a duststorm occurred in the city during the afternoon. Northwest winds were sustained from 14 to 24 mph.

In 1918…pre-frontal Chinook winds from the southwest… Sustained to 43 mph with a maximum velocity to 52 mph… Warmed temperatures to a high of 62 degrees.

In 1954…strong Chinook winds gusting to 52 mph during the morning warmed the temperature in Denver to a balmy 65 degrees by early afternoon. A vigorous Canadian cold front during the late afternoon produced north winds at sustained speeds of 52 mph with gusts as high as 65 mph and billows of blowing dust…which reduced the visibility to as low as 1 mile at Stapleton Airport. Showers left half an inch of snow on the ground as the temperature dipped to a low of 27 degrees before midnight.

In 1989…a brief rain shower produced a microburst wind gust to 51 mph at Stapleton International Airport.

In 1997…snowfall totaled 4 to 6 inches in and near the foothills. Only 0.8 inch of snow fell at the site of the former Stapleton International Airport. Northeast winds gusted to 29 mph at Denver International Airport.

In 2013…a storm system produced heavy snow in the Front Range Foothills. Storm totals included: 12 inches near Black Mountain and Pine Junction…10 inches near Conifer and Nederland; 9 inches…12 miles northwest of Golden; 8 inches near Evergreen…with 6 inches near Eldorado Springs. Snow and blowing snow produced blizzard conditions along and south of the Interstate 70 corridor…just east of Denver.  Storm totals generally ranged from 3 to 7 inches. North winds of 25 to 30 mph were reported with gusts around 40 mph. Roads became impassable as snow and blowing snow produced 3 to 4 ft snow drifts. Interstate 70 was closed from Aurora to the Kansas state line. At Denver International Airport…a peak wind gust to 31 mph was reported along with 1.0 inch of snow.


In 1893…heavy snowfall totaled 7.9 inches in downtown Denver. Most of the snow…6.7 inches…fell on the 27th. Northeast winds were sustained to 18 mph with gusts to 30 mph behind an apparent cold front.

In 1939…heavy snowfall of 8.1 inches was the heaviest of the month in downtown Denver. North winds sustained to 21 mph on the 26th and to 28 mph on the 27th caused much drifting. The greatest snow depth on the ground was 7.8 inches at noon on the 27th.

In 1987…a snowstorm dropped 4 to 8 inches of snow across metro Denver…causing flight delays at Stapleton International Airport where snowfall totaled 3.8 inches and north winds gusted to 24 mph. Both I-70 and I-25 were closed for a time to the east and south of Denver.


In 1896…northwest winds were sustained to 46 mph with gusts to 58 mph.

In 1902…northwest winds were sustained to 50 mph with gusts as high as 60 mph. The high temperature was 44 degrees.

In 1918…a post-frontal heavy snow storm developed over downtown Denver. Snowfall totaled 8.4 inches and north winds were sustained to 30 mph with a maximum velocity to 32 mph.

In 1963…west winds gusted to 55 mph at Stapleton Airport.

In 1974…a wind gust to 99 mph was recorded in Boulder. West winds gusted to 43 mph at Stapleton International Airport.

In 2009…a strong wind gusts blew a trailer in the path of two vehicles along State Highway 36…between Boulder and Lyons. The two vehicles were in the northbound lane when a wind gust blew a fifth-wheel trailer into their path… As it approached from the opposite lane. The trailer left the road surface…and collided with the top left side of the first car; causing extensive damage. A van following the first vehicle then struck the trailer. The driver of the van suffered facial injuries.


In 1918…heavy snowfall totaled 9.6 inches in downtown Denver. Most of the snow…8.4 inches…fell on the 27th.

In 1931…a major winter storm dumped 12.0 inches of heavy snowfall over downtown Denver. This is the greatest 24 hour snowfall ever recorded during the month of February. North winds gusted to 18 mph on the 28th.

In 2006…a warm spell resulted in 3 temperature records. The high temperature of 73 degrees on the 27th equaled the record high for the date. High temperature of 77 degrees on the 28th was a record high for the date and equaled the all time record high temperature for February first set on February 4…1890.


In 1896…northwest winds were sustained to 54 mph with gusts to 65 mph. The winds warmed the temperature to a high of 56 degrees. This was the second consecutive day of strong winds in the city.

In 1958…at Stapleton Airport…snowfall totaled 5.3 inches and northeast winds gusted to 24 mph.

» Click here to read the rest of February 26 to March 4: This Week in Denver Weather History

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Thornton’s weekend to offer up chilly temperatures, calm conditions

Friday, February 24th, 2017 5:20am MDT

The storm system that brought our first snow in more than a month is very slowly working its way out. While we will see some lingering snow today, the rest of the weekend’s weather will be dry and calm, but chilly.

For today look for cloudy skies above and a few flurries of snow into this evening. No additional accumulation is expected however. Temperatures will be chilly with today’s high expected to only reach the mid to upper 20s. Overnight tonight we will see some clearing skies and that will lend itself to a cold night with lows into the low teens.

After a cold start Saturday, we will warm up however temps will remain below normal. Look for highs in the mid-30s under mostly sunny skies. Overall conditions will be calm. Another cold night follows with lows Saturday night into Sunday morning going into the teens.

On Sunday we see a day much like Saturday but with temperatures a few degrees warmer. Mostly sunny skies will be above as we head for a high near 40 degrees. Have a great weekend!

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Winter returns with colder temps, decent chances for snow

Thursday, February 23rd, 2017 5:29am MDT

You knew that unseasonably warm weather we have enjoyed wasn’t going to last the entire month, right? A passing storm system is going to give us a dose of weather reality over the next 36 hours or so with wintry conditions.

For the most part we can expect mostly cloudy skies today with perhaps an occasional break here and there but those won’t last long. High temperatures will be nearly 30 degrees colder than what we have been seeing with today’s high forecast to top out in the mid-30s. Winds will be calm initially then increase by late morning / early afternoon. After that look for blustery winds from the northwest with gusts pushing close to 30mph.

In terms of snowfall, the morning may bring a few flakes but nothing that will amount to much. Best chances for snow come between this afternoon and midnight with total accumulations of a half inch to two inches through tomorrow morning being possible. Really not much of a storm system with the bulk of it passing to our north.

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