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-May-2024 @ 2:55pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 7.2°F than last hour.

67.5°F

Feels like:  77°F
24-hr diff: 4.7°FWarmer 4.7°F than yesterday at this time.
Comfortable
High Today
77.6°F
2:07 PM
Low Today
39.8°F
6:20 AM
Yest High
64.4°F
2:26 PM
Yest Low
36.0°F
5:48 AM
Sta* High
82.0°F
2023
Sta* Low
25.1°F
2013
* This Station's Records Since 11/2006
Mostly cloudy, Dry Mostly cloudy, Dry

Wind from N Wind:  N
12.6

Gusting to:
16.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
49.1 of 100
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Mostly Cloudy
Slight Chance Showers And T-Storms then Mostly Cloudy
Saturday

Saturday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Hi 71°F Lo 38°F Hi 66°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 7.3°F since last hour. 37.4°F
Last Hour: Increased 7.3°F since last hour. +7.3°F
High 2:54 PM: 38.5°F
Low 1:25 PM: 24.4°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 53.3°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 1.35 in
May Rain: 0.00 in
May to Date
  Avg:10
0.26 in
May to Date
  Diff from Avg:10
Under 0.26 in for the month 0.26 in
May Avg: 3.07 in
Diff from Avg: Under 3.07 in for the month 3.07 in
Season:1 6.80 in
YTD
  Avg:11
4.09 in
YTD
  Diff from Avg:11
Over 2.71 in for the year 2.71 in
Last Rain
Time/Date:
28-Apr-2024
at 12:30 PM
29 rain days in 2024
0 days in May
4 days since last rain
Current: N  12.6 mph
1Hr Average: 4.6 mph
Wind Run: 48.05 miles
Wind Gust
Current: 16.0 mph
Today: 23.0 mph 2:54 PM
Month: 34.0 mph 1-May
Year: 46.0 mph 10-Jan
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
14 h 1 m 3 s
of Sunlight Yesterday
14 h 3 m 15 s
of Sunlight Today
Which is
2 min 12 sec longer than
yesterday
14 h 5 m 26 s
of Sunlight Tomorrow
(Noon) graph (Midnight)
Legend

Waning Crescent
Waning Crescent, 25 days, 2 hours, 36 minutes in cycle
23%
Illuminated
Humidity Barometer
Current: Increased 14% since last hour. 33%
Last Hour: Increased 14% since last hour. 14%
High 6:35 AM: 75%
Low 1:25 PM: 15%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Rising 0.037  inHg/hr 29.717 inHg
Last Hour: Rising
High 12:00 AM: 29.982
Low 2:09 PM: 29.676
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Cooling Degree Days Snow3 Heat Index Air
Today: 0.0
May: 0.0
2024 to Date: 0.0
Heating Degree Days
2024 to Date: 3005.8
Today: 0.00 in
Yesterday: 0.00 in
May Snow: Under 1.654 in for the month 0.00 in
May Avg: 1.65 in
Diff from Avg: -1.65 in
Season Total:2 50.40 in
Snow Depth: 0.00 in
0 snow days in May
23 snow days this season.2
First Snow of Season:
29-Oct-2023
Average 1st Snow:
25 of Oct
Current: 76.6°F
High 2:07pm: 77.6°F
Yesterday: 64.4°F
Record: 102.9°F
8-Jul-2021
Quality
Index6:

64


Moderate
Density:
1.19 kg/m3
Current UV Index Current Solar Energy9
1.8
Sunburn in
62 Minutes
Highest:
1:02 PM
6.6
295 W/m2
31%
W/m2 SI
High Today:
2:01 PM
1062  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 40.7°F
Sunrise: 5:56 am
Sunset: 7:55 pm
Moonrise: 3:37 am
Moonset: 2:48 pm
Full Moon: 23-Apr-2024
New Moon: 03:23 UTC
07-May-2024
Updated at Midnight
Current ET: 0.20 in
7-Days Rain: 1.35 in
7-Days ET: 0.96 in
7-Day:  0.393 in water in excess of what evaporated in last 7 days. 0.393 in
May:  0.39 in water in deficit of what evaporated this month. 0.39 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
  100.4°F°F
23-Jun-2012
  -8.1°F°F
22-Dec-2022
Nitetime Records
  88.0°F°F
15-Aug-2012
  -10.7°F°F
02-Feb-2011
ICN:3 | 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 3 of just the month of May for this station since 2006.   11 Historical average rain this season to day 3 of May for this station since 2006.
 NWS Weather Forecast  -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Hi 71°F
NWS forecast: A slight chance of rain showers before 3pm, then a slight chance of showers and thunderstorms. Mostly sunny. High near 71, with temperatures falling to around 65 in the afternoon. West northwest wind around 20 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Mostly Cloudy
Slight Chance Showers And T-Storms then Mostly Cloudy

Lo 38°F
NWS forecast: A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 38. East northeast wind 5 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
 NWS Short Term Weather Forecast
Saturday

Saturday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Saturday
Night
Saturday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Sunday
Night
Sunday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Monday

Monday: Chance Rain Showers
Chance Rain Showers
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday

Tuesday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Hi 66°F Lo 45°F Hi 77°F Lo 48°F Hi 61°F Lo 42°F Hi 64°F
ajax-dashboard6.php - Version 6.95h - 20-Feb-2023 - Script by: Scott of BurnsvilleWeatherLIVE.com
Now supported by Saratoga-weather.org Download