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-Feb-2026 @ 4:40pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1.5°F than last hour.

43.3°F

Feels like:  39°F
24-hr diff: -8°FColder 8°F than yesterday at this time.
Cold
High Today
48.2°F
1:17 PM 		Low Today
23.6°F
3:59 AM
Yest High
54.8°F
3:05 PM 		Yest Low
27.0°F
11:56 PM
Sta* High
68.8°F
2025 		Sta* Low
-9.4°F
2022
* This Station's Records Since 11/2006
Overcast and gloomy, Dry Overcast and gloomy, Dry

Wind from NNW Wind:  NNW
7.7
Gusting to:
 10.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
18.1 of 100
This
Afternoon
This Afternoon: Mostly Cloudy
Mostly Cloudy
Tonight

Tonight: Chance Rain And Snow then Partly Cloudy
Chance Rain And Snow then Partly Cloudy
Wednesday

Wednesday: Sunny
Sunny
Hi 53°F Lo 27°F Hi 52°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 1.3°F since last hour. 24.9°F
Last Hour: Decreased 1.3°F since last hour. -1.3°F
High 3:26 PM: 28.0°F
Low 3:18 AM: 15.1°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 36.9°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Feb Rain: 0.00 in
Feb to Date
  Avg:10 		0.15 in
Feb to Date
  Diff from Avg:10 		Under 0.15 in for the month 0.15 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 		0.56 in
YTD
  Diff from Avg:11 		Under 0.3 in for the year 0.30 in
Last Rain
Time/Date: 		24-Jan-2026
at 11:36 AM
5 rain days in 2026
0 days in February
7 days since last rain
Current: NNW  7.7 mph
1Hr Average: 10.4 mph
Wind Run: 49.18 miles
Wind Gust
Current: 10.0 mph
Today: 28.0 mph 3:09 PM
Month: 28.0 mph 3-Feb
Year: 38.0 mph 16-Jan
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
10 h 13 m 45 s
of Sunlight Yesterday
10 h 15 m 56 s
of Sunlight Today Which is
2 min 11 sec longer than
yesterday
10 h 18 m 9 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Gibbous
Waning Gibbous, 16 days, 3 hours, 51 minutes in cycle
96%
Illuminated
Humidity Barometer
Current: No Change 48%
Last Hour: No Change 0%
High 4:00 AM: 71%
Low 11:55 AM: 29%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Rising 0.018 inHg/hr 30.238 inHg
Last Hour: Rising slowly
High 3:15 PM: 30.242
Low 2:33 AM: 30.063
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today: 25.2
Feb: 68.3
2026 to Date: 962.3
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: 38.7°F
Low 5:21 AM: 19.2°F
Yesterday: 25.1°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:
45

Good
Density:
1.27 kg/m3
Current UV Index Current Solar Energy9
0.0
Sunburn in
720 Minutes 		Highest:
10:34 AM
1.7
18 W/m2
9%
W/m2 ⇒ SI 		High Today:
10:36 AM
 601  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 35.9°F
Sunrise: 7:05 am
Sunset: 5:20 pm
Moonrise: 6:34 pm
Moonset: 8:08 am
Full Moon: 01-Feb-2026
New Moon: 12:02 UTC
17-Feb-2026
Updated at Midnight
Current ET: 0.04 in
7-Days Rain: 0.00 in
7-Days ET: 0.32 in
7-Day: 0.323 in water in deficit of what evaporated in last 7 days. 0.323 in
February: 0.14 in water in deficit of what evaporated this month. 0.14 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:5 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.8 | RCP:97%
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.   9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.   10 Historical average only to day 3 of just the month of February for this station since 2006.   11 Historical average rain this season to day 3 of February for this station since 2006.
 NWS Weather Forecast  -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Mostly Cloudy
Mostly Cloudy

Hi 53°F 		NWS forecast: Mostly cloudy. High near 53, with temperatures falling to around 48 in the afternoon. North northwest wind 9 to 15 mph, with gusts as high as 24 mph.
 Tonight

Tonight: Chance Rain And Snow then Partly Cloudy
Chance Rain And Snow then Partly Cloudy

Lo 27°F 		NWS forecast: A chance of rain and snow before midnight. Partly cloudy. Low around 27, with temperatures rising to around 30 overnight. Northwest wind 2 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
 NWS Short Term Weather Forecast
Wednesday

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

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday

Saturday: Sunny
Sunny
Hi 52°F Lo 31°F Hi 64°F Lo 33°F Hi 65°F Lo 36°F Hi 65°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