Navigation

External Links

ThorntonWeather.com on Twitter

ThorntonWeather.com on Facebook

Alerts


No alerts
No Warnings, Watches, or Advisories

Current Radar
Thornton, Colorado current radar
Click for larger view 		Current Webcam
Thornton, Colorado current webcam image
Click for larger view 		Latest News
powered by Surfing Waves
spacer
METRIC | IMPERIAL
Updated: 25-Mar-2025 @ 12:05am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1.7°F than last hour.

50.3°F

24-hr diff: -4.5°FColder 4.5°F than yesterday at this time.
Cool
High Today
51.0°F
12:00 AM 		Low Today
50.3°F
12:03 AM
Yest High
70.6°F
4:01 PM 		Yest Low
48.3°F
11:33 PM
Sta* High
72.3°F
2012 		Sta* Low
9.4°F
2013
* This Station's Records Since 11/2006
Night time, Dry, Mostly cloudy Night time, Dry, Mostly cloudy

Calm Wind:  SW
0.0
Gusting to:
 0.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
21.5 of 100
Tonight

Tonight: Mostly Clear
Mostly Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Lo 43°F Hi 68°F Lo 40°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.6°F since last hour. 30.3°F
Last Hour: Increased 0.6°F since last hour. +0.6°F
High 12:00 AM: 30.4°F
Low 12:03 AM: 29.7°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 42.4°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Mar Rain: 0.27 in
Mar to Date
  Avg:10 		1.13 in
Mar to Date
  Diff from Avg:10 		Under 0.86 in for the month 0.86 in
Mar Avg: 1.23 in
Diff from Avg: Under 0.96 in for the month 0.96 in
Season:1 0.67 in
YTD
  Avg:11 		2.14 in
YTD
  Diff from Avg:11 		Under 1.47 in for the year 1.47 in
Last Rain
Time/Date: 		6-Mar-2025
at 7:40 PM
12 rain days in 2025
2 days in March
18 days since last rain
Current: SW  0.0 mph
1Hr Average: 1.3 mph
Wind Run: 0.08 miles
Wind Gust
Current: 0.0 mph
Today: 3.5 mph 12:01 AM
Month: 47.0 mph 3-Mar
Year: 47.0 mph 3-Mar
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
12 h 23 m 11 s
of Sunlight Yesterday
12 h 25 m 49 s
of Sunlight Today Which is
2 min 38 sec longer than
yesterday
12 h 28 m 27 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Crescent
Waning Crescent, 25 days, 5 hours, 27 minutes in cycle
21%
Illuminated
Humidity Barometer
Current: Increased 4% since last hour. 46%
Last Hour: Increased 4% since last hour. 4%
High 12:04 AM: 46%
Low 12:00 AM: 45%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Rising 0.018 inHg/hr 29.830 inHg
Last Hour: Rising slowly
High 12:04 AM: 29.833
Low 12:00 AM: 29.826
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today:
Mar: 462.0
2025 to Date: 2596.2
Cooling Degree Days
2025 to Date: 0.0
Today: 0.00 in
Yesterday: 0.00 in
Mar Snow: Under 10.433 in for the month 0.00 in
Mar Avg: 10.43 in
Diff from Avg: -10.43 in
Season Total:2 32.90 in
Snow Depth: 0.00 in
0 snow days in March
15 snow days this season.2
First Snow of Season:
6-Nov-2024
Average 1st Snow:
27 of Oct
Current: 50.3°F
Low 12:03 AM: 50.3°F
Yesterday: 46.6°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:
N/A

No Data
Density:
1.24 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   5.2 @ 12:18 PM
Mar-25

6.0 		Mar-26

6.0 		Mar-27

6.1
High Yest:   729.0 @ 12:18 PM
Sun Hours Today:
00:00
   This Month: 82:42 Hrs
Rise: 6:54 am  Set: 7:16 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Night
YTD Avg Temp: 33.8°F
Sunrise: 6:54 am
Sunset: 7:16 pm
Moonrise: 5:00 am
Moonset: 2:54 pm
Full Moon: 14-Mar-2025
New Moon: 10:58 UTC
29-Mar-2025
Updated at Midnight
Current ET: 0.02 in
7-Days Rain: 0.00 in
7-Days ET: 1.07 in
7-Day: 1.075 in water in deficit of what evaporated in last 7 days. 1.075 in
March: 2.79 in water in deficit of what evaporated this month. 2.79 in
Support this Site!
Your donation helps support this site
HIGHS: LOWS:
102.9°F
25-Jun-2012 		-14.6°F
2-Feb-2011
Daytime Records
  100.6°F°F
12-Jul-2024 		  -8.1°F°F
22-Dec-2022
Nitetime Records
  88.0°F°F
15-Aug-2012 		  -10.7°F°F
02-Feb-2011
ICN:1 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.8 | RCP:100%
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured usually around 5AM and 5PM.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index is provided by Colorado Department of Public Health & Environment.   10 Historical average only to day 25 of just the month of March for this station since 2006.   11 Historical average rain this season to day 25 of March for this station since 2006.
 NWS Weather Forecast  -   Outlook Tonight & Tuesday
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 43°F 		NWS forecast: Mostly clear. Low around 43, with temperatures rising to around 46 overnight. West wind 5 to 8 mph.
 Tuesday

Tuesday: Sunny
Sunny

Hi 68°F 		NWS forecast: Sunny, with a high near 68. East southeast wind 5 to 10 mph, with gusts as high as 16 mph.
 NWS Short Term Weather Forecast
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday

Friday: Partly Sunny
Partly Sunny
Friday
Night
Friday Night: Chance Light Rain
Chance Light Rain
Lo 40°F Hi 74°F Lo 43°F Hi 79°F Lo 47°F Hi 76°F Lo 42°F
Click here for the complete forecast.
ajax-dashboard6.php - Version 6.95h - 20-Feb-2023 - Script by: Scott of BurnsvilleWeatherLIVE.com
Now supported by Saratoga-weather.org Download