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Adams County
 Details for Adams County Heat Advisory  +3 additional alerts
 Thornton
 Details for Thornton Heat Advisory
Heat Advisory HEAT ADVISORY - Adams County  - Thornton
Air Quality Alert AIR QUALITY ALERT - Adams County

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METRIC | IMPERIAL
Updated: 02-Aug-2026 @ 2:05pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 0.1°F than last hour.

100.8°F

Heat Index:  95.1°F
Feels like:  95°F
24-hr diff: 9.8°FWarmer 9.8°F than yesterday at this time.
Uncomfortably Hot
High Today
100.9°F
1:50 PM 		Low Today
64.4°F
5:57 AM
Yest High
94.3°F
4:09 PM 		Yest Low
60.3°F
5:59 AM
Sta* High
99.3°F
2024 		Sta* Low
51.0°F
2014
* This Station's Records Since 11/2006
Station Record High
Sunny, Dry Sunny, Dry

Wind from NNE Wind:  NNE
4.1
Gusting to:
 6.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: EXTREME Current CBI
Fire Danger:
158.7 of 100
This
Afternoon
This Afternoon: Sunny
Sunny
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Monday

Monday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Hi 102°F Lo 70°F Hi 100°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.1°F since last hour. 36.7°F
Last Hour: Decreased 0.1°F since last hour. -0.1°F
High 10:54 AM: 54.8°F
Low 12:53 PM: 30.2°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 66.8°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.11 in
Aug Rain: 0.00 in
Aug to Date
  Avg:10 		0.08 in
Aug to Date
  Diff from Avg:10 		Under 0.08 in for the month 0.08 in
Aug Avg: 1.06 in
Diff from Avg: Under 1.06 in for the month 1.06 in
Season:1 5.49 in
YTD
  Avg:11 		9.91 in
YTD
  Diff from Avg:11 		Under 4.42 in for the year 4.42 in
Last Rain
Time/Date: 		30-Jul-2026
at 4:15 PM
41 rain days in 2026
0 days in August
2 days since last rain
Current: NNE  4.1 mph
1Hr Average: 6.5 mph
Wind Run: 45.18 miles
Wind Gust
Current: 6.0 mph
Today: 15.0 mph 1:06 AM
Month: 16.0 mph 1-Aug
Year: 43.0 mph 25-Feb
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
14 h 14 m 45 s
of Sunlight Yesterday
14 h 12 m 46 s
of Sunlight Today Which is
1 min 59 sec shorter than
yesterday
14 h 10 m 44 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Gibbous
Waning Gibbous, 19 days, 10 hours, 22 minutes in cycle
82%
Illuminated
Humidity Barometer
Current: No Change 11%
Last Hour: No Change 0%
High 5:56 AM: 65%
Low 12:53 PM: 9%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.02 inHg/hr 29.363 inHg
Last Hour: Falling slowly
High 12:00 AM: 29.576
Low 2:04 PM: 29.362
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Cooling Degree Days Snow3 Heat Index Air
Today: 6.0
Aug: 18.7
2026 to Date: 691.0
Heating Degree Days
2026 to Date: 2415.6
Today: 0.00 in
Yesterday: 0.00 in
Aug Snow: No Change 0.00 in
Aug 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 August
0 snow days this season.2
First Snow of Season:
8-Jan-2026
Average 1st Snow:
29 of Oct
Current: 95.1°F
High 2:04pm: 95.7°F
Yesterday: 90.5°F
Record: 103.5°F
26-Jul-2026
Quality
Index6:
97

Moderate
Density:
1.11 kg/m3
Current UV Index Current Solar Energy9
7.7
Sunburn in
15 Minutes 		Highest:
12:51 PM
8.2
853 W/m2
97%
W/m2 ⇒ SI 		High Today:
1:10 PM
 879  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 56.7°F
Sunrise: 5:59 am
Sunset: 8:13 pm
Moonrise: 9:50 pm
Moonset: 10:03 am
Full Moon: 29-Jul-2026
New Moon: 17:37 UTC
12-Aug-2026
Updated at Midnight
Current ET: 0.34 in
7-Days Rain: 0.11 in
7-Days ET: 1.47 in
7-Day: 1.362 in water in deficit of what evaporated in last 7 days. 1.362 in
August: 0.26 in water in deficit of what evaporated this month. 0.26 in
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HIGHS: LOWS:
104.4°F
25-Jul-2026 		-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:0 | 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 2 of just the month of August for this station since 2006.   11 Historical average rain this season to day 2 of August for this station since 2006.
 NWS Weather Forecast  -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 102°F 		NWS forecast: Sunny. High near 102, with temperatures falling to around 100 in the afternoon. East wind around 8 mph.
 Tonight

Tonight: Partly Cloudy
Partly Cloudy

Lo 70°F 		NWS forecast: Partly cloudy. Low around 70, with temperatures rising to around 73 overnight. South southeast wind 6 to 15 mph, with gusts as high as 28 mph.
 NWS Short Term Weather Forecast
Monday

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

Tuesday: Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Slight Chance Rain Showers then Slight Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday

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

Thursday: Sunny
Sunny
Hi 100°F Lo 62°F Hi 82°F Lo 58°F Hi 87°F Lo 60°F Hi 93°F
Click here for the complete forecast.
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