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: 03-Jan-2025 @ 12:50am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: No Change

25.6°F

Wind Chill:  25.6°F
24-hr diff: 1.3°FWarmer 1.3°F than yesterday at this time.
Uncomfortably Cold
High Today
25.7°F
12:31 AM 		Low Today
25.4°F
12:00 AM
Yest High
52.1°F
2:36 PM 		Yest Low
22.7°F
4:43 AM
Sta* High
62.2°F
2014 		Sta* Low
2.2°F
2015
* This Station's Records Since 11/2006
Night time, Dry, Obscured Night time, Dry, Obscured

Calm Wind:  NNW
0.0
Gusting to:
 0.0 mph
Current Snow Snow3:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
-2.4 of 100
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Friday

Friday: Mostly Sunny
Mostly Sunny
Friday
Night
Friday Night: Mostly Cloudy
Mostly Cloudy
Lo 22°F Hi 52°F Lo 22°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: No Change 23.6°F
Last Hour: No Change +0.0°F
High 12:31 AM: 23.7°F
Low 12:00 AM: 23.4°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 25.0°F
Rain Today
rain graph
Melt Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.04 in
Jan Rain: 0.00 in
Jan to Date
  Avg:10 		0.02 in
Jan to Date
  Diff from Avg:10 		Under 0.02 in for the month 0.02 in
Jan Avg: 0.42 in
Diff from Avg: Under 0.42 in for the month 0.42 in
Season:1 0.00 in
YTD
  Avg:11 		0.02 in
YTD
  Diff from Avg:11 		Under 0.02 in for the year 0.02 in
Last Rain
Time/Date: 		31-Dec-2024
at 9:52 PM
0 rain days in 2025
0 days in January
2 days since last rain
Current: NNW  0.0 mph
1Hr Average: 0.4 mph
Wind Run: 0.17 miles
Wind Gust
Current: 0.0 mph
Today: 5.0 mph 12:13 AM
Month: 26.0 mph 1-Jan
Year: 26.0 mph 1-Jan
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
9 h 27 m 31 s
of Sunlight Yesterday
9 h 28 m 16 s
of Sunlight Today Which is 45 sec longer than
yesterday
9 h 29 m 7 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waxing Crescent
Waxing Crescent, 3 days, 9 hours, 23 minutes in cycle
14%
Illuminated
Humidity Barometer
Current: No Change 92%
Last Hour: No Change 0%
High 12:00 AM: 92%
Low 12:00 AM: 92%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.031 inHg/hr 30.450 inHg
Last Hour: Falling
High 12:12 AM: 30.479
Low 12:49 AM: 30.450
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today: 0.7
Jan: 71.2
2025 to Date: 71.1
Cooling Degree Days
2025 to Date: 0.0
Today: 0.00 in
Yesterday: 0.00 in
Jan Snow: Under 6.457 in for the month 0.00 in
Jan Avg: 6.46 in
Diff from Avg: -6.46 in
Season Total:2 16.20 in
Snow Depth: 0.00 in
0 snow days in January
7 snow days this season.2
First Snow of Season:
6-Nov-2024
Average 1st Snow:
27 of Oct
Current: 25.6°F
Low 12:13 AM: 23.4°F
Yesterday: 16.8°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:
44

Good
Density:
1.33 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   2.1 @ 11:40 AM
Jan-03

1.6 		Jan-04

1.4 		Jan-05

1.4
High Yest:   587.0 @ 12:02 PM
Sun Hours Today:
00:00
   This Month: 12:59 Hrs
Rise: 7:21 am  Set: 4:47 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Night
YTD Avg Temp: 29.7°F
Sunrise: 7:21 am
Sunset: 4:47 pm
Moonrise: 10:09 am
Moonset: 7:47 pm
Full Moon: 13-Jan-2025
New Moon: 12:37 UTC
29-Jan-2025
Updated at Midnight
Current ET: 0.00 in
7-Days Rain: 0.04 in
7-Days ET: 0.28 in
7-Day: 0.24 in water in deficit of what evaporated in last 7 days. 0.24 in
January: 0.06 in water in deficit of what evaporated this month. 0.06 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:99%
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 3 of just the month of January for this station since 2006.   11 Historical average rain this season to day 3 of January for this station since 2006.
 NWS Weather Forecast  -   Outlook Overnight & Friday
Overnight

Overnight: Partly Cloudy
Partly Cloudy

Lo 22°F 		NWS forecast: Partly cloudy. Low around 22, with temperatures rising to around 24 overnight. West southwest wind around 5 mph.
 Friday

Friday: Mostly Sunny
Mostly Sunny

Hi 52°F 		NWS forecast: Mostly sunny. High near 52, with temperatures falling to around 42 in the afternoon. South southwest wind around 6 mph.
 NWS Short Term Weather Forecast
Friday
Night
Friday Night: Mostly Cloudy
Mostly Cloudy
Saturday

Saturday: Partly Sunny then Chance Snow Showers
Partly Sunny then Chance Snow Showers
Saturday
Night
Saturday Night: Chance Snow Showers
Chance Snow Showers
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday

Monday: Partly Sunny then Chance Snow Showers
Partly Sunny then Chance Snow Showers
Monday
Night
Monday Night: Chance Snow Showers
Chance Snow Showers
Lo 22°F Hi 43°F Lo 20°F Hi 34°F Lo 20°F Hi 38°F Lo 20°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