Heat Advisory HEAT ADVISORY - Adams County  - Thornton
Air Quality Alert AIR QUALITY ALERT - Adams County

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METRIC | IMPERIAL
Updated: 08-Jul-2025 @ 6:20pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 2°F than last hour.

91.3°F

Heat Index:  87.3°F
Feels like:  87°F
24-hr diff: 4.4°FWarmer 4.4°F than yesterday at this time.
Hot
High Today
95.9°F
1:11 PM
Low Today
57.8°F
6:14 AM
Yest High
92.8°F
4:23 PM
Yest Low
56.3°F
5:49 AM
Sta* High
102.7°F
2021
Sta* Low
51.6°F
2024
* This Station's Records Since 11/2006
Mostly cloudy, Dry Mostly cloudy, Dry

Wind from NE Wind:  NE
3.3

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

Tonight: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Hi 95.0°F Lo 62.0°F Hi 101.0°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 1.6°F since last hour. 40.4°F
Last Hour: Increased 1.6°F since last hour. -30.4°F
High 12:05 AM: 54.5°F
Low 1:33 PM: 34.0°F
Record High: 73.2°F
3-Aug-2007
Record Low: -17.3°F
16-Jan-2024
Wetbulb: 64.2°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.22 in
Jul Rain: 0.22 in
Jul to Date
  Avg:10
0.59 in
Jul to Date
  Diff from Avg:10
Under 0.37 in for the month 0.37 in
Jul Avg: 1.90 in
Diff from Avg: Under 1.68 in for the month 1.68 in
Season:1 8.03 in
YTD
  Avg:11
8.81 in
YTD
  Diff from Avg:11
Under 0.78 in for the year 0.78 in
Last Rain
Time/Date:
5-Jul-2025
at 3:41 PM
48 rain days in 2025
2 days in July
2 days since last rain
Current: NE  3.3 mph
1Hr Average: 5.3 mph
Wind Run: 20.57 miles
Wind Gust
Current: 3.0 mph
Today: 23.0 mph 2:30 PM
Month: 33.0 mph 6-Jul
Year: 47.2 mph 3-Mar
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
14 h 52 m 18 s
of Sunlight Yesterday
14 h 51 m 19 s
of Sunlight Today
Which is 59 sec shorter than
yesterday
14 h 50 m 18 s
of Sunlight Tomorrow
(Noon) graph (Midnight)
Legend

Waxing Gibbous
Waxing Gibbous, 13 days, 13 hours, 49 minutes in cycle
97%
Illuminated
Humidity Barometer
Current: Increased 2% since last hour. 17%
Last Hour: Increased 2% since last hour. 2%
High 6:30 AM: 74%
Low 12:33 PM: 12%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.005  inHg/hr 29.581 inHg
Last Hour: Steady
High 7:47 AM: 29.706
Low 5:55 PM: 29.576
Record High: 31.09 inHg
30-Dec-2014
Record Low: 25.13 inHg
17-Dec-2006
Cooling Degree Days Snow3 Heat Index Air
Today: 3.0
Jul: 74.3
2025 to Date: 280.9
Heating Degree Days
2025 to Date: 3399.7
Today: 0.00 in
Yesterday: 0.00 in
Jul Snow: No Change 0.00 in
Jul Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 0.00 in
Snow Depth: 0.00 in
0 snow days in July
0 snow days this season.2
First Snow of Season:
7-Jan-2025
Average 1st Snow:
27 of Oct
Current: 87.3°F
High 12:31pm: 91.6°F
Yesterday: 89.4°F
Record: 102.9°F
8-Jul-2021
Quality
Index6:

58


Moderate
Density:
1.14 kg/m3
Current UV Index Current Solar Energy9
0.7
Sunburn in
160 Minutes
Highest:
12:44 PM
9.0
62 W/m2
18%
W/m2 SI
High Today:
1:52 PM
1023  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Evening
YTD Avg Temp: 48.5°F
Sunrise: 5:39 am
Sunset: 8:30 pm
Moonrise: 7:27 pm
Moonset: 4:04 am
Full Moon: 10-Jul-2025
New Moon: 19:12 UTC
24-Jul-2025
Updated at Midnight
Current ET: 0.32 in
7-Days Rain: 0.22 in
7-Days ET: 1.95 in
7-Day:  1.733 in water in deficit of what evaporated in last 7 days. 1.73 in
July:  1.73 in water in deficit of what evaporated this month. 1.73 in
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HIGHS: LOWS:
102.9°F
25-Jun-2012
-14.6°F
2-Feb-2011
Daytime Records
  100.6°F
12-Jul-2024
 -8.1°F
22-Dec-2022
Nitetime Records
 88.0°F
15-Aug-2012
 -10.7°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 8 of just the month of July for this station since 2006.   11 Historical average rain this season to day 8 of July 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 95.0°F
NWS forecast: A slight chance of showers and thunderstorms before 5pm. Mostly sunny. High near 95, with temperatures falling to around 93 in the afternoon. North wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 62.0°F
NWS forecast: Mostly clear. Low around 62, with temperatures rising to around 64 overnight. South southeast wind 5 to 10 mph, with gusts as high as 18 mph.
 NWS Short Term Weather Forecast
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Saturday

Saturday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Hi 101.0°F Lo 68.0°F Hi 95.0°F Lo 60.0°F Hi 84.0°F Lo 59.0°F Hi 85.0°F
Click here for the complete forecast.
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