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: 01-Feb-2026 @ 11:00pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 7.2°F than last hour.

45.7°F

Feels like:  43°F
24-hr diff: 16°FWarmer 16°F than yesterday at this time.
Cold
High Today
64.8°F
1:34 PM 		Low Today
25.5°F
3:27 AM
Yest High
58.9°F
2:11 PM 		Yest Low
21.2°F
7:20 AM
Sta* High
66.0°F
2017 		Sta* Low
-1.2°F
2011
* This Station's Records Since 11/2006
Night time, Dry, Mostly cloudy Night time, Dry, Mostly cloudy

Wind from S Wind:  S
4.7
Gusting to:
 5.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: MODERATE Current CBI
Fire Danger:
58.0 of 100
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Monday

Monday: Mostly Cloudy
Mostly Cloudy
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Lo 35°F Hi 55°F Lo 27°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 1.7°F since last hour. 14.4°F
Last Hour: Increased 1.7°F since last hour. +1.7°F
High 11:57 AM: 21.8°F
Low 10:34 PM: 11.4°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 36.1°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.02 in
Feb Rain: 0.00 in
Feb to Date
  Avg:10 		0.03 in
Feb to Date
  Diff from Avg:10 		Under 0.03 in for the month 0.03 in
Feb Avg: 0.59 in
Diff from Avg: Under 0.59 in for the month 0.59 in
Season:1 0.26 in
YTD
  Avg:11 		0.44 in
YTD
  Diff from Avg:11 		Under 0.18 in for the year 0.18 in
Last Rain
Time/Date: 		24-Jan-2026
at 11:36 AM
5 rain days in 2026
0 days in February
5 days since last rain
Current: S  4.7 mph
1Hr Average: 7.2 mph
Wind Run: 80.92 miles
Wind Gust
Current: 5.0 mph
Today: 17.3 mph 10:08 PM
Month: 17.0 mph 1-Feb
Year: 38.0 mph 16-Jan
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
10 h 9 m 27 s
of Sunlight Yesterday
10 h 11 m 35 s
of Sunlight Today Which is
2 min 8 sec longer than
yesterday
10 h 13 m 45 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Full Moon
Full Moon, 14 days, 10 hours, 8 minutes in cycle
100%
Illuminated
Humidity Barometer
Current: Increased 8% since last hour. 28%
Last Hour: Increased 8% since last hour. 8%
High 2:48 AM: 64%
Low 1:37 PM: 15%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.005 inHg/hr 29.876 inHg
Last Hour: Steady
High 12:03 AM: 30.143
Low 10:44 PM: 29.867
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today: 26.6
Feb: 26.6
2026 to Date: 920.7
Cooling Degree Days
2026 to Date: 0.0
Today: 0.00 in
Yesterday: 0.00 in
Feb Snow: Under 10.315 in for the month 0.00 in
Feb Avg: 10.31 in
Diff from Avg: -10.31 in
Season Total:2 11.80 in
Snow Depth: 0.00 in
0 snow days in February
8 snow days this season.2
First Snow of Season:
28-Nov-2025
Average 1st Snow:
29 of Oct
Current: 43.4°F
Low 3:38 AM: 20.7°F
Yesterday: 13.0°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:
N/A

No Data
Density:
1.25 kg/m3
UV Summary/Forecast Solar Summary
High Today:   2.0 @ 11:56 AM
Feb-02

2.6 		Feb-03

2.0 		Feb-04

2.2
High Today:  
596 W/m2 @ 12:44 PM
Sun Hours Today:
02:08
   This Month: 02:08 Hrs
Rise: 7:06 am  Set: 5:19 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Evening
YTD Avg Temp: 35.7°F
Sunrise: 7:06 am
Sunset: 5:19 pm
Moonrise: 5:21 pm
Moonset: 7:42 am
Full Moon: 01-Feb-2026
New Moon: 12:02 UTC
17-Feb-2026
Updated at Midnight
Current ET: 0.09 in
7-Days Rain: 0.02 in
7-Days ET: 0.34 in
7-Day: 0.315 in water in deficit of what evaporated in last 7 days. 0.315 in
February: No Change 0 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:82%
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 1 of just the month of February for this station since 2006.   11 Historical average rain this season to day 1 of February for this station since 2006.
 NWS Weather Forecast  -   Outlook Tonight & Monday
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy

Lo 35°F 		NWS forecast: Mostly cloudy, with a low around 35. South southwest wind 5 to 9 mph.
 Monday

Monday: Mostly Cloudy
Mostly Cloudy

Hi 55°F 		NWS forecast: Mostly cloudy. High near 55, with temperatures falling to around 52 in the afternoon. South southeast wind 6 to 10 mph.
 NWS Short Term Weather Forecast
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday

Tuesday: Mostly Sunny then Slight Chance Rain And Snow
Mostly Sunny then Slight Chance Rain And Snow
Tuesday
Night
Tuesday Night: Slight Chance Rain And Snow
Slight Chance Rain And Snow
Wednesday

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

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Lo 27°F Hi 53°F Lo 28°F Hi 49°F Lo 31°F Hi 64°F Lo 32°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