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: 26-Mar-2026 @ 5:00am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1.9°F than last hour.

56.5°F

24-hr diff: 1.9°FWarmer 1.9°F than yesterday at this time.
Cool
High Today
66.4°F
12:00 AM
Low Today
56.4°F
4:56 AM
Yest High
90.1°F
3:50 PM
Yest Low
48.7°F
7:18 AM
Sta* High
79.7°F
2012
Sta* Low
13.4°F
2013
* This Station's Records Since 11/2006
Night time, Dry, Mostly cloudy Night time, Dry, Mostly cloudy

Wind from S Wind:  S
2.1

Gusting to:
4.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
30.0 of 100
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Mostly Sunny then Slight Chance Rain Showers
Mostly Sunny then Slight Chance Rain Showers
Thursday
Night
Thursday Night: Rain Showers Likely
Rain Showers Likely
Lo 56°F Hi 84°F Lo 37°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.5°F since last hour. 33.1°F
Last Hour: Decreased 0.5°F since last hour. -0.5°F
High 4:19 AM: 33.5°F
Low 12:01 AM: 30.3°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 46.6°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Mar Rain: 0.65 in
Mar to Date
  Avg:10
1.12 in
Mar to Date
  Diff from Avg:10
Under 0.47 in for the month 0.47 in
Mar Avg: 1.25 in
Diff from Avg: Under 0.6 in for the month 0.60 in
Season:1 0.91 in
YTD
  Avg:11
2.09 in
YTD
  Diff from Avg:11
Under 1.18 in for the year 1.18 in
Last Rain
Time/Date:
16-Mar-2026
at 10:49 AM
10 rain days in 2026
5 days in March
9 days since last rain
Current: S  2.1 mph
1Hr Average: 1.6 mph
Wind Run: 14.30 miles
Wind Gust
Current: 4.0 mph
Today: 11.5 mph 12:56 AM
Month: 43.0 mph 12-Mar
Year: 43.0 mph 25-Feb
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
12 h 22 m 34 s
of Sunlight Yesterday
12 h 25 m 12 s
of Sunlight Today
Which is
2 min 38 sec longer than
yesterday
12 h 27 m 50 s
of Sunlight Tomorrow
(Noon) graph (Midnight)
Legend

Waxing Gibbous
Waxing Gibbous, 7 days, 9 hours, 40 minutes in cycle
57%
Illuminated
Humidity Barometer
Current: Increased 2% since last hour. 41%
Last Hour: Increased 2% since last hour. 2%
High 4:32 AM: 41%
Low 12:00 AM: 26%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.002  inHg/hr 29.332 inHg
Last Hour: Steady
High 1:06 AM: 29.367
Low 4:48 AM: 29.328
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today: 0.4
Mar: 315.5
2026 to Date: 1762.6
Cooling Degree Days
2026 to Date: 19.4
Today: 0.00 in
Yesterday: 0.00 in
Mar Snow: Under 3.476 in for the month 6.80 in
Mar Avg: 10.28 in
Diff from Avg: -3.48 in
Season Total:2 18.60 in
Snow Depth: 0.00 in
2 snow days in March
10 snow days this season.2
First Snow of Season:
28-Nov-2025
Average 1st Snow:
29 of Oct
Current: 56.5°F
Low 4:56 AM: 56.4°F
Yesterday: 48.7°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:

44


Good
Density:
1.20 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   5.5 @ 12:57 PM
Mar-26

7.7
Mar-27

7.5
Mar-28

7.2
High Yest:   844.0 @ 1:14 PM
Sun Hours Today:
00:00
   This Month: 104:35 Hrs
Rise: 6:53 am  Set: 7:17 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Early Morning
YTD Avg Temp: 43.7°F
Sunrise: 6:53 am
Sunset: 7:17 pm
Moonrise: 12:34 pm
Moonset: 3:23 am
Full Moon: 01-Apr-2026
New Moon: 11:52 UTC
17-Apr-2026
Updated at Midnight
Current ET: 0.05 in
7-Days Rain: 0.00 in
7-Days ET: 1.21 in
7-Day:  1.213 in water in deficit of what evaporated in last 7 days. 1.213 in
March:  2.97 in water in deficit of what evaporated this month. 2.97 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:4.7 | RCP:81%
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 26 of just the month of March for this station since 2006.   11 Historical average rain this season to day 26 of March for this station since 2006.
 NWS Weather Forecast  -   Outlook Overnight & Thursday
Overnight

Overnight: Partly Cloudy
Partly Cloudy

Lo 56°F
NWS forecast: Partly cloudy. Low around 56, with temperatures rising to around 59 overnight. Southwest wind around 7 mph.
Thursday

Thursday: Mostly Sunny then Slight Chance Rain Showers
Mostly Sunny then Slight Chance Rain Showers

Hi 84°F
NWS forecast: A slight chance of rain showers after 3pm. Mostly sunny. High near 84, with temperatures falling to around 77 in the afternoon. North northwest wind 5 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
 NWS Short Term Weather Forecast
Thursday
Night
Thursday Night: Rain Showers Likely
Rain Showers Likely
Friday

Friday: Chance Rain And Snow Showers then Mostly Cloudy
Chance Rain And Snow Showers then Mostly Cloudy
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday

Saturday: Partly Sunny
Partly Sunny
Saturday
Night
Saturday Night: Mostly Cloudy
Mostly Cloudy
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Sunday
Night
Sunday Night: Mostly Cloudy
Mostly Cloudy
Lo 37°F Hi 54°F Lo 37°F Hi 78°F Lo 48°F Hi 80°F Lo 50°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