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Thornton, Colorado, USA
UpdatedThu, 20-Sep-2018 5:20am MDT 
 

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Thornton’s Wednesday to offer seasonal temps, slim chance for storms

Wednesday, August 15th, 2018 5:00am MDT

A nice looking day ahead for us with temperatures being a bit warmer than yesterday. We do have another chance for storms today but right now, it doesn’t appear very likely we will see any activity.

The day starts under mostly clear skies. By mid-morning most clouds will have dissipated only to have them return in the afternoon although they won’t be all that intrusive.

Highs today will be right close to the average high for the date of 88 degrees. There is just a slight chance for storms from about 3:00pm to 6:00pm but we aren’t expecting much, if any, activity.

Tonight, skies will be partly clear with lows around 60 degrees.

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Slightly cooler temps Tuesday, a bit of a chance for thunderstorms

Tuesday, August 14th, 2018 4:55am MDT

Minor changes to Thornton’s weather today as low level moisture increases. We will see things cool a few degrees, clouds increase some and just a slight chance for a thunderstorm in the afternoon and evening.

The day starts with mostly sunny skies and those will be with us until this afternoon when cloud cover will increase some.

The morning will be dry then, after about 2:00pm, we may see a thunderstorm move off the higher terrain to the adjacent plains. The chances don’t look great but they do exist. We should see similar levels of smoke as in recent days from the wildfires so there won’t be a break from it.

High temperatures today will top out in the mid-80s.

Tonight, any thunderstorm activity should end by 10:00pm and then we will be left with partly clear skies. Overnight lows will be around 60 degrees.

You can keep an eye out for any storms here.

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Seasonal temperatures, sunny skies start Thornton’s workweek

Monday, August 13th, 2018 5:41am MDT

Monday is going to bring weather conditions quite like what we just saw this past weekend. Temps should be a couple of degrees cooler but otherwise look for more calm, dry conditions.

The day starts under sunny skies and those will be with us until this afternoon when just a few clouds show up. Highs today will top out in the upper 80s, right near the average high of 88 degrees for the date.

Tonight, skies remain mostly clear with lows around 60 degrees.

Looking ahead at the rest of your workweek, temperatures are going to remain largely unchanged, maybe a hair cooler. We do see a chance for some storms on a few of the days. More in the extended forecast here.

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Sunny, calm and seasonal weather conditions for Thornton’s weekend

Friday, August 10th, 2018 4:48am MDT

Well, this is one of the simplest, most boring weekend forecasts we have issued in a long time. High pressure is going to dominate the three day period keeping any drama at bay and allowing pleasant, seasonal conditions.

Temperatures from Friday through Sunday should top out right near the average high for the dates of 89 degrees.

Overnight lows will be around 60 degrees.

Really, there isn’t much else we can say about it other than to hope you enjoy it!

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Lots of sun, seasonal temps, calm conditions for Thornton’s Thursday

Thursday, August 9th, 2018 4:59am MDT

With high pressure dominating the region holding any drama and moisture away, we will enjoy a good looking day today. Temps will be right near normal and there will be plenty of those blue, Colorado skies above.

We start out with sunny skies and will see them last through the early afternoon. After that, a few clouds may arrive but nothing too intrusive. Overall conditions will be calm with no thunderstorms expected in our area. Highs will top out in the upper 80s.

Tonight, skies will be partly clear with overnight lows around 60 degrees.

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Wednesday to offer warm temperatures, just a slight chance for storms

Wednesday, August 8th, 2018 5:02am MDT

A fine looking summer day ahead for Thornton. Temperatures will be close to normal and the afternoon and evening offer only a bit of a chance for storms.

We start out under clear skies and will enjoy lots of sun for much of the day. The mid-afternoon will bring a few clouds but nothing too intrusive. Highs today will top in the upper 80s, close to the average high of 89 degrees.

Thunderstorm activity should be quite isolated today with activity largely to our west and south. We may see something pop up after 4:00pm but chances don’t appear good.

Tonight, lows will dip to around the 60 degree mark.

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Comfortable temperatures, slight chance for storms for Thornton’s Tuesday

Tuesday, August 7th, 2018 5:00am MDT

A pretty nice looking day ahead for us. Temperatures will be below normal and quite pleasant while the evening offers up a typical chance for thunderstorms.

We start out the day under sunny skies then will see a few clouds later this morning with a further increase in coverage in the afternoon. Temperatures will top out in the mid-80s, a bit below normal, making for a nice one.

Late afternoon brings a slight chance for thunderstorms with the best opportunity coming after 6:00pm. Right now it appears most activity will be to our south but we can’t rule out some isolated storms our way.

Tonight, any storms will settle down after dark and we will be left with clearing skies and lows in the upper 50s.

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Thornton’s August 2018 preview: Temperatures moderate, severe weather decreases

Monday, August 6th, 2018 6:46pm MDT

As summer vacations wind down and families prepare to send their kids back to school in August, Colorado weather also starts to settle down. The chances for severe weather decrease markedly during August and by the end of the month daytime temperatures are dropping quite a bit as well.

Find out more about what lies ahead with Thornton’s August weather here.

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July 2018 weather recap: After a hot start, month cools down, gets wet

Monday, August 6th, 2018 7:40am MDT

The month of July was somewhat a tale of two months in one.  The first half was most notable for their unseasonably warm temperatures and relatively dry conditions.  The second half saw a few days of heat but for the most part was considerably cooler and wetter.

Thornton saw an average temperature for the month of 73.5 degrees.  Out at Denver International Airport where the Mile High City’s official readings are taken, the month saw an average of 75.3 degrees.  Long term, the month of July sees an average of 74.2 degrees in Denver so while Thornton was cooler than that, Denver was warmer.

Thornton had its highest temperature reading of 99.9 degrees on the 19th and its coldest of 47.7 degrees on the 1st.  Denver saw its warmest reading of 99 degrees on the 3rd and its coldest of 47 degrees on the 1st.

In terms of precipitation, Denver’s long term July average is 2.16 inches.  Thornton easily bested that number with 3.66 inches in our rain bucket.  The Mile High City fell well short with only 1.03 inches.

Click here to view Thornton’s July 2018 climate report.

Thornton, Colorado's July 2018 temperature summary. (ThorntonWeather.com)

Thornton, Colorado’s July 2018 temperature summary. (ThorntonWeather.com)

Thornton, Colorado's July 2018 precipitation summary. (ThorntonWeather.com)

Thornton, Colorado’s July 2018 precipitation summary. (ThorntonWeather.com)

CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
305 PM MDT WED AUG 1 2018

...................................

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF JULY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   07/20/2005
 LOW               42   07/04/1903
                        07/31/1873
HIGHEST            99   07/03        99       0      100  07/19
                                                          07/06
LOWEST             47   07/01        51      -4       51  07/01
AVG. MAXIMUM     90.2              89.4     0.8     91.5
AVG. MINIMUM     60.3              58.9     1.4     61.3
MEAN             75.3              74.2     1.1     76.4
DAYS MAX >= 90     19              16.0     3.0       20
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.41   1965
 MINIMUM         0.01   1901
TOTALS           1.03              2.16   -1.13     0.47
DAILY AVG.       0.03              0.07   -0.04     0.02
DAYS >= .01         8               8.3    -0.3        6
DAYS >= .10         3               4.3    -1.3        3
DAYS >= .50         0               1.4    -1.4        0
DAYS >= 1.00        0               0.7    -0.7        0
GREATEST
 24 HR. TOTAL    0.43   07/23 TO 07/23

SNOWFALL (INCHES)
 TOTAL            0.0               0.0
RECORDS
 TOTAL            0.0

DEGREE_DAYS
HEATING TOTAL       0                 6      -6        0
 SINCE 7/1          0                 6      -6        0
COOLING TOTAL     326               289      37      360
 SINCE 1/1        615               444     171      533

FREEZE DATES
RECORD
 EARLIEST     09/08/1962
 LATEST       06/08/2007
EARLIEST                        10/07
LATEST                          05/05
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
RESULTANT WIND SPEED/DIRECTION   2/138
HIGHEST WIND SPEED/DIRECTION    47/140    DATE  07/02
HIGHEST GUST SPEED/DIRECTION    64/150    DATE  07/02

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             20
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     50

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORMS            13   MIXED PRECIP           0
HEAVY RAIN                3   RAIN                   5
LIGHT RAIN               11   FREEZING RAIN          0
LT FREEZING RAIN          0   HAIL                   0
HEAVY SNOW                0   SNOW                   0
LIGHT SNOW                0   FOG W/VIS <=1/4 MILE   3
FOG                       8   HAZE                   5

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.
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Thornton’s workweek starts out with cooler temps, unsettled conditions

Monday, August 6th, 2018 4:56am MDT

A nice break from the heat in store for us today. However, we do see the potential for thunderstorms, some potentially severe.

The day starts out with a bit of cloud cover but that will ease this morning through the early afternoon. Then, expect to see clouds increase as thunderstorms begin to build in the foothills and move across the area.

Best chance for storms will come after 3:00pm and then increase from there into the evening. Some of these storms could bring brief, heavy rain, gusty winds and perhaps some sizeable hail so please be aware.

High temperatures today will top out around a very comfortable 77 degrees.

Tonight, thunderstorm activity should be done by midnight then we will see gradually clearing skies. Overnight lows will be in the upper 50s.

Looking ahead, we have a pretty decent week ahead with highs in the mid-80s expected through Saturday.

In the meantime, keep an eye on the skies for those thunderstorms here.

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