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-Apr-2026 @ 12:20pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 1.9°F than last hour.

50.4°F

24-hr diff: 4.2°FWarmer 4.2°F than yesterday at this time.
Cool
High Today
51.1°F
12:15 PM
Low Today
36.1°F
4:55 AM
Yest High
63.3°F
12:00 AM
Yest Low
40.8°F
7:00 AM
Sta* High
82.9°F
2012
Sta* Low
21.4°F
2021
* This Station's Records Since 11/2006
Mostly cloudy, Dry Mostly cloudy, Dry

Wind from NNW Wind:  NNW
5.1

Gusting to:
6.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
15.6 of 100
Today

Today: Mostly Cloudy then Showers And Thunderstorms Likely
Mostly Cloudy then Showers And T-Storms Likely
Tonight

Tonight: Chance Rain Showers then Partly Cloudy
Chance Rain Showers then Partly Cloudy
Thursday

Thursday: Sunny
Sunny
Hi 60°F Lo 39°F Hi 73°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.2°F since last hour. 32.9°F
Last Hour: Decreased 0.2°F since last hour. -0.2°F
High 11:52 AM: 34.4°F
Low 4:53 AM: 28.7°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 43.3°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Apr Rain: 0.00 in
Apr to Date
  Avg:10
0.02 in
Apr to Date
  Diff from Avg:10
Under 0.02 in for the month 0.02 in
Apr Avg: 1.52 in
Diff from Avg: Under 1.52 in for the month 1.52 in
Season:1 0.91 in
YTD
  Avg:11
2.21 in
YTD
  Diff from Avg:11
Under 1.3 in for the year 1.30 in
Last Rain
Time/Date:
16-Mar-2026
at 10:49 AM
9 rain days in 2026
0 days in April
15 days since last rain
Current: NNW  5.1 mph
1Hr Average: 4.5 mph
Wind Run: 24.02 miles
Wind Gust
Current: 6.0 mph
Today: 11.5 mph 8:43 AM
Month: 11.0 mph 1-Apr
Year: 43.0 mph 25-Feb
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
12 h 38 m 20 s
of Sunlight Yesterday
12 h 40 m 56 s
of Sunlight Today
Which is
2 min 36 sec longer than
yesterday
12 h 43 m 33 s
of Sunlight Tomorrow
(Noon) graph (Midnight)
Legend

Full Moon
Full Moon, 13 days, 17 hours, 0 minutes in cycle
100%
Illuminated
Humidity Barometer
Current: Decreased 4% since last hour. 51%
Last Hour: Decreased 4% since last hour. 4%
High 5:11 AM: 77%
Low 12:16 PM: 50%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.039  inHg/hr 29.467 inHg
Last Hour: Falling
High 12:05 AM: 29.671
Low 12:19 PM: 29.466
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today: 12.4
Apr: 12.4
2026 to Date: 1826.4
Cooling Degree Days
2026 to Date: 24.2
Today: 0.00 in
Yesterday: 0.00 in
Apr Snow: Under 5.591 in for the month 0.00 in
Apr Avg: 5.59 in
Diff from Avg: -5.59 in
Season Total:2 18.60 in
Snow Depth: 0.00 in
0 snow days in April
10 snow days this season.2
First Snow of Season:
28-Nov-2025
Average 1st Snow:
29 of Oct
Current: 48.6°F
Low 6:42 AM: 35.6°F
Yesterday: 35.6°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:

56


Moderate
Density:
1.22 kg/m3
Current UV Index Current Solar Energy9
2.2
Sunburn in
51 Minutes
Highest:
11:52 AM
2.8
311 W/m2
31%
W/m2 SI
High Today:
10:20 AM
469  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 44.6°F
Sunrise: 6:43 am
Sunset: 7:23 pm
Moonrise: 6:23 pm
Moonset: 6:21 am
Full Moon: 01-Apr-2026
New Moon: 11:52 UTC
17-Apr-2026
Updated at Midnight
Current ET: 0.06 in
7-Days Rain: 0.00 in
7-Days ET: 0.92 in
7-Day:  0.917 in water in deficit of what evaporated in last 7 days. 0.917 in
April: 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:5 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.7 | 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.   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 1 of just the month of April for this station since 2006.   11 Historical average rain this season to day 1 of April for this station since 2006.
 NWS Weather Forecast  -   Outlook Today & Tonight
Today

Today: Mostly Cloudy then Showers And Thunderstorms Likely
Mostly Cloudy then Showers And T-Storms Likely

Hi 60°F
NWS forecast: A chance of rain showers between noon and 3pm, then showers and thunderstorms likely. Mostly cloudy. High near 60, with temperatures falling to around 56 in the afternoon. North northwest wind 3 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight

Tonight: Chance Rain Showers then Partly Cloudy
Chance Rain Showers then Partly Cloudy

Lo 39°F
NWS forecast: A chance of rain showers before midnight. Partly cloudy. Low around 39, with temperatures rising to around 41 overnight. West northwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
 NWS Short Term Weather Forecast
Thursday

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Mostly Cloudy then Slight Chance Snow Showers
Mostly Cloudy then Slight Chance Snow Showers
Friday

Friday: Slight Chance Snow Showers
Slight Chance Snow Showers
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday

Sunday: Sunny
Sunny
Hi 73°F Lo 37°F Hi 54°F Lo 30°F Hi 64°F Lo 34°F Hi 70°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