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Thornton, Colorado, USA
UpdatedSun, 24-May-2020 8:40pm MDT 
 

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Thornton to enjoy mild temperatures, calm conditions for the weekend

Friday, January 24th, 2020 5:39am MDT

Our unseasonably warm and dry weather pattern is going to keep on going through the weekend. Lots of sun and mild temps will be the rule.

For today, mostly sunny skies will be above throughout the day. Highs will be in the low to mid-50s. Overnight, we will see an increase in cloud cover for much of it. Lows will drop to around 30 degrees.

Saturday will offer up variable levels of cloud cover from sunny to mostly sunny. Highs will once again be in the low 50s. Saturday night into Sunday, we will see some clouds again and lows drop to the mid-20s.

Sunday continues the warm weather with highs expected in the mid-50s again and mostly sunny skies above.

Have a great weekend!

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Mostly sunny skies, temperatures a bit above normal for Thornton’s Thursday

Thursday, January 23rd, 2020 4:58am MDT

A cooler day today but with less wind and comfortable temps. Look for mostly sunny skies and high temperatures within a few degrees of average for the date.

The day starts with mostly clear skies and we will see the same throughout the day. Winds will be out of the southwest initially then shift from the northwest. High temperatures will top out around 47 degrees.

Tonight, lows will drop to the mid-20s under partly cloudy skies.

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January 19 to January 25: This Week in Denver Weather History

Wednesday, January 22nd, 2020 3:06pm MDT

This Week in Denver Weather History

Extreme cold, damaging wind and Denver’s biggest January snowstorm mark this week in Denver weather history.

From the National Weather Service:

14-21

In 1930…a protracted cold spell occurred when low temperatures plunged below zero on 8 consecutive days. The coldest low temperatures of 20 degrees below zero on the 17th and 19 degrees below zero on the 16th were record minimums for the dates. High temperatures during the period ranged from 18 on the 18th to zero on the 20th. Two degrees on the 15th was a record low maximum temperature for the date.

15-23

In 1962…a protracted cold spell kept metro Denver in the deep freeze for more than a week. From the 15th thru the 23rd…low temperatures were zero or below for 9 consecutive days…but a daily record low was set only on the 22nd when the temperature dipped to 14 degrees below zero. A record low maximum for the date was also set on the 22nd when the temperature climbed to only 11 degrees. The coldest high temperature was 3 degrees above zero on the 21st…which did not break the record. The protracted cold was broken for only a few hours on the afternoon of the 20th when Chinook winds warmed the temperature to a high of 38 degrees before another surge of cold arctic air plunged temperatures back into the deep freeze that evening. The severe cold caused much damage to water systems. A woman was frozen to death at Morrison. There were other deaths attributable to the weather…including traffic deaths and heart attacks from overexertion.

18-19

In 1980…a slow moving storm deposited 4 to 10 inches of snow across metro Denver with the greatest amounts in the foothills. Flights were delayed 30 to 40 minutes at Stapleton International Airport where snowfall totaled 5.5 inches and north winds gusted to 22 mph.

In 1988…a blizzard produced strong winds and heavy snow across eastern Colorado. Ten-foot drifts were common and many roads were closed including I-70…I-76…and I-25. In the Denver area…4.0 inches of snow fell at Stapleton International Airport where north winds gusting to 40 mph reduced the visibility to 1/2 mile at times.

18-20

In 1958…snowfall totaled 6.9 inches at Stapleton Airport where east-northeast winds gusted to 26 mph on the 18th.

18-24

In 2005…a week of mid-winter unseasonably warm weather pushed high temperatures into the 60’s or more on all but one day. During the period…the highest temperature of 70 degrees on the 20th was a new record maximum for the date. Low temperatures remained above freezing on 4 of the days.

19

In 1883…the low temperature dropped to 20 degrees below zero…and the high temperature of only 9 degrees below zero was the record low maximum for January…which was equaled on January 11…1963.

In 1887…west winds sustained to 48 mph warmed the temperature in the city to a high of 67 degrees…which was the highest temperature of the month that year.

In 1890…northwest winds were sustained to 42 mph with gusts to 45 mph in the city.

In 1903…northwest winds were sustained to 40 mph with an extreme velocity of 44 mph.

In 1911…west Chinook winds sustained to 42 mph warmed the temperature to a high of 66 degrees.

In 1916…sleet (grains of ice) fell for 15 minutes. This is a rare occurrence in Denver.

In 1990…7 to 10 inches of snow fell across metro Denver. Strong winds…drifting snow…and poor visibility caused the closure of I-70 from Denver east to the Kansas border. However…at Stapleton International Airport north winds gusted to only 17 mph. Several schools and businesses were forced to close. Weather-related delays of up to 90 minutes hampered aircraft operations at Stapleton International Airport where snowfall from the storm totaled 7.5 inches.

In 2002…high winds occurred over portions of the northern mountains and eastern foothills. Wind reports included: 74 mph at the National Center for Atmospheric Research atop the mesa in Boulder and 71 mph at the Eldora Ski Resort west of Boulder.

In 2003…a wind gust to 75 mph was recorded at the National Wind Technology Center atop Rocky Flats to the northwest of Denver. West winds gusted to 36 mph at Denver International Airport.

19-20

In 1935…snowfall of only 0.8 inch during the evening of the 19th was the only measurable snowfall of the month. The light snow developed behind an arctic cold front as temperatures plunged to a low of 13 degrees below zero on the 20th. High temperature of only 2 degrees on the 20th was a record low maximum for the date. Northeast winds were sustained to 16 mph on the 19th.

In 1986…Chinook winds gusting to 39 mph at Stapleton International Airport provided record breaking warmth. The warmest temperature of the month…68 degrees on the 19th…was also a record high for the date. The low temperature of 41 degrees on the 20th equaled the record high minimum for the date.

In 1991…a strong cold front moved south across metro Denver. Upslope conditions produced 3 to 6 inches of snow along the Front Range with 5 inches in Westminster and 4 inches in Thornton. Snowfall measured 4.9 inches at Stapleton International Airport where north winds gusted to 31 mph.

20 » Click here to read the rest of January 19 to January 25: This Week in Denver Weather History

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Wednesday in Thornton to offer warm temps, breezy winds

Wednesday, January 22nd, 2020 5:19am MDT

A little bit of good and bad in today’s weather forecast. We see the return of the sun and temps will be unseasonably warm however we are also going to see some pretty breezy winds.

The day starts off with partly clear skies. As the day progresses, cloud cover will ease and by this afternoon mostly sunny skies will be above.

Winds out of the northwest will be increasing this morning becoming breezy through the afternoon. Look for them to die down late this evening.

The downslope winds will have a warming effect pushing high temperatures to the low 50s.

Tonight, mostly clear skies will be above with overnight low temperatures in the low to mid-20s.

Keep an eye on those wind speeds with our live weather gauges here.

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Clouds move in on Tuesday but temperatures should remain warmer than normal

Tuesday, January 21st, 2020 4:57am MDT

A passing disturbance will bring an increase in moisture aloft and thus a good bit of cloud cover. Its impact on temperatures though will be limited and we should still see mercury readings above normal.

Cloudy skies are going to be the general rule throughout the day due to mid and upper level moisture. The end of the day may see just a bit of clearing. Overall conditions will be calm. Temperatures look to top out near the 50 degree mark depending on the impact of those clouds.

Tonight, lows will dip to the upper 20s under mostly cloudy skies.

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Monday to offer calm, dry conditions, temperatures above normal

Monday, January 20th, 2020 5:08am MDT

Thornton is set to enjoy a very pleasant Martin Luther King Jr. Day. We’ll have lots of sun above and unseasonably warm temperatures.

Clear skies start us off and then we will see a slow increase in cloud cover through the day. The clouds won’t be too intrusive though with mostly sunny skies being the general rule. Temperatures will climb to a high right near the 50 degree mark, a good bit above the average for the date of 44 degrees.

Tonight, cloud cover will increase and lows will dip to the upper 20s.

Looking ahead at the rest of your week, for the most part the dry, unseasonably weather will continue. We do see just the slightest chance for some snow Wednesday night but that looks to amount to very little. Details here.

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Thornton’s weekend starts out very windy, will end calm and mild

Friday, January 17th, 2020 5:49am MDT

Our dry weather will continue through the weekend but the period starts with a pretty significant wind event. Once that passes, things will calm down and cool down.

For today, mostly sunny skies will be above throughout the day. Temperatures will be mild with highs in the low to mid-50s aided by downslope winds. There is just a slight chance to see a bit of a rain shower around mid-day due to the instability. Those winds will be the major story of the period as a High Wind Warning will be in effect. Gusts from 40 to 60mph will be possible from late morning into tonight. Overnight, winds will finally ease by sunrise with lows near 20 degrees.

Saturday will be a very seasonal day with high temperatures near the average for the date of 44 degrees. Winds will be calmer and mostly clear skies above. Saturday night into Sunday morning it will be partly cloudy and lows dip again to the low 20s.

Sunday looks to be the most pleasant day of the three day period. We will enjoy mostly sunny to sunny skies, calm conditions, and high temperatures around the 50 degree mark.

 

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Increased clouds, cooler temperatures for Thornton’s Thursday

Thursday, January 16th, 2020 5:14am MDT

A largely seasonal day today with temperatures cooler than recent days but still near normal. There will be more cloud cover above while conditions remain calm.

Partly cloudy skies start us off and will be followed by increasing high-level coverage. Some areas to our west and south will be seeing some windy conditions but at this time we think we will be spared. Temperatures today will top out in the low to mid-40s.

Tonight, skies remain mostly cloudy with overnight lows in the mid-20s.

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Calm conditions, temps a bit above normal for Thornton’s Wednesday.

Wednesday, January 15th, 2020 4:53am MDT

A nice looking winter’s day ahead for us. Lots of sun will be above with warmer than normal temperatures are the highlights.

Sunny skies start things off and will be with us throughout the day. There may be a cloud or two at different points but nothing intrusive. Winds will be light and out of the southwest. Temperatures will top out in the upper 40s.

Tonight, skies remain clear with overnight lows near the 20 degree mark.

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Tuesday to offer up unseasonably warm temperatures, lots of sun

Tuesday, January 14th, 2020 4:55am MDT

A very nice looking day today for Thornton. We will enjoy temperatures a good bit above normal and plenty of that Colorado blue above.

Sunny skies start us off and then we will see a few clouds but nothing intrusive at all. Winds will be light and out of the southwest initially, switching to come from the northwest this afternoon. High temperatures will reach to the low 50s.

Tonight, mostly clear skies will be above with overnight low into the mid-20s.

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