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: 02-Apr-2025 @ 12:40am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 0.4°F than last hour.

35.0°F

Wind Chill:  33.8°F
24-hr diff: -6.1°FColder 6.1°F than yesterday at this time.
Cold
High Today
35.4°F
12:00 AM 		Low Today
34.9°F
12:33 AM
Yest High
52.6°F
3:10 PM 		Yest Low
32.0°F
6:05 AM
Sta* High
86.3°F
2011 		Sta* Low
17.9°F
2020
* This Station's Records Since 11/2006
Night time, Dry, Mostly cloudy Night time, Dry, Mostly cloudy

Wind from NE Wind:  NE
2.3
Gusting to:
 2.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
-0.7 of 100
Tonight

Tonight: Chance Snow Showers
Chance Snow Showers
Wednesday

Wednesday: Mostly Sunny then Slight Chance Snow Showers
Mostly Sunny then Slight Chance Snow Showers
Wednesday
Night
Wednesday Night: Slight Chance Light Snow then Mostly Cloudy
Slight Chance Light Snow then Mostly Cloudy
Lo 31°F Hi 51°F Lo 29°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.1°F since last hour. 29.5°F
Last Hour: Decreased 0.1°F since last hour. -0.1°F
High 12:13 AM: 29.7°F
Low 12:33 AM: 29.0°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 33.1°F
Rain Today
rain graph
Today: 0.00 in
Storm Rain: 0.04 in
Yesterday: 0.04 in
Last 7 Days: 1.34 in
Apr Rain: 0.04 in
Apr to Date
  Avg:10 		0.04 in
Apr to Date
  Diff from Avg:10 		No Change 0.00 in
Apr Avg: 1.57 in
Diff from Avg: Under 1.53 in for the month 1.53 in
Season:1 2.01 in
YTD
  Avg:11 		2.30 in
YTD
  Diff from Avg:11 		Under 0.29 in for the year 0.29 in
Last Rain
Time/Date: 		1-Apr-2025
at 9:35 PM
16 rain days in 2025
1 day in April
0 days since last rain
Current: NE  2.3 mph
1Hr Average: 2.9 mph
Wind Run: 2.03 miles
Wind Gust
Current: 2.0 mph
Today: 7.0 mph 12:18 AM
Month: 23.0 mph 1-Apr
Year: 47.2 mph 3-Mar
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
12 h 44 m 12 s
of Sunlight Yesterday
12 h 46 m 49 s
of Sunlight Today Which is
2 min 37 sec longer than
yesterday
12 h 49 m 25 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waxing Crescent
Waxing Crescent, 3 days, 19 hours, 45 minutes in cycle
19%
Illuminated
Humidity Barometer
Current: Increased 1% since last hour. 80%
Last Hour: Increased 1% since last hour. 1%
High 12:13 AM: 80%
Low 12:00 AM: 79%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Rising 0.012 inHg/hr 29.315 inHg
Last Hour: Steady
High 12:38 AM: 29.317
Low 12:21 AM: 29.304
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today: 0.6
Apr: 25.3
2025 to Date: 2708.1
Cooling Degree Days
2025 to Date: 0.0
Today: 0.00 in
Yesterday: 0.00 in
Apr Snow: Under 5.709 in for the month 0.00 in
Apr Avg: 5.71 in
Diff from Avg: -5.71 in
Season Total:2 33.70 in
Snow Depth: 0.00 in
0 snow days in April
16 snow days this season.2
First Snow of Season:
6-Nov-2024
Average 1st Snow:
27 of Oct
Current: 33.8°F
Low 12:21 AM: 31.1°F
Yesterday: 27.1°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:
49

Good
Density:
1.26 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   5.7 @ 1:38 PM
Apr-02

5.0 		Apr-03

5.6 		Apr-04

5.6
High Yest:   921.0 @ 1:39 PM
Sun Hours Today:
00:00
   This Month: 00:35 Hrs
Rise: 6:41 am  Set: 7:24 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Night
YTD Avg Temp: 35.2°F
Sunrise: 6:41 am
Sunset: 7:24 pm
Moonrise: 9:10 am
Moonset: 12:00 am
Full Moon: 12-Apr-2025
New Moon: 19:32 UTC
27-Apr-2025
Updated at Midnight
Current ET: 0.01 in
7-Days Rain: 1.34 in
7-Days ET: 0.71 in
7-Day: 0.627 in water in excess of what evaporated in last 7 days. 0.627 in
April: 0.03 in water in deficit of what evaporated this month. 0.03 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 2 of just the month of April for this station since 2006.   11 Historical average rain this season to day 2 of April for this station since 2006.
 NWS Weather Forecast  -   Outlook Tonight & Wednesday
Tonight

Tonight: Chance Snow Showers
Chance Snow Showers

Lo 31°F 		NWS forecast: A chance of snow showers before 1am. Mostly cloudy. Low around 31, with temperatures rising to around 33 overnight. West northwest wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
 Wednesday

Wednesday: Mostly Sunny then Slight Chance Snow Showers
Mostly Sunny then Slight Chance Snow Showers

Hi 51°F 		NWS forecast: A slight chance of snow showers after 1pm. Mostly sunny, with a high near 51. West wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
 NWS Short Term Weather Forecast
Wednesday
Night
Wednesday Night: Slight Chance Light Snow then Mostly Cloudy
Slight Chance Light Snow then Mostly Cloudy
Thursday

Thursday: Light Snow
Light Snow
Thursday
Night
Thursday Night: Rain And Snow Likely
Rain And Snow Likely
Friday

Friday: Slight Chance Light Snow then Rain And Snow Likely
Slight Chance Light Snow then Rain And Snow Likely
Friday
Night
Friday Night: Rain And Snow
Rain And Snow
Saturday

Saturday: Chance Light Snow
Chance Light Snow
Saturday
Night
Saturday Night: Slight Chance Light Snow then Partly Cloudy
Slight Chance Light Snow then Partly Cloudy
Lo 29°F Hi 39°F Lo 28°F Hi 45°F Lo 27°F Hi 40°F Lo 24°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